Method, device and medium for calculating multi-physical effects of ablation particles

Abstract

The application relates to the technical field of aircrafts, and discloses a calculation method, equipment and medium for the multi-physical effect of ablation particles, the method comprising the following steps: acquiring equivalent inertia items induced by respective multi-physical effects; calculating a multi-physical particle dynamics process according to a particle sliding resistance item and the equivalent inertia items induced by the respective multi-physical effects; performing dimensionless processing on a radiation heat transfer equation of spherical particles in the volume of an arbitrary sampling unit to obtain a dimensionless radiation heat transfer equation; and calculating a thermal radiation particle thermodynamic process by using the dimensionless radiation heat transfer equation. The method can reflect complex physical processes under extreme mechanical environments, ensure that numerical simulation can reproduce the original appearance of ablation physics, has engineering interaction of ablation problems, automatically performs dimensionless processing, avoids numerical rigidity caused by dimensional differences of different physical problems, and fills the gap that the prior art cannot calculate complex processes of multi-physical effects of ablation particles under extreme mechanical conditions.

Description

Technical Field

[0001] This invention relates to the field of aircraft technology, and in particular to a method, apparatus and medium for calculating the multi-physical effects of ablation particles. Background Technology

[0002] After ablation occurs at the nose of a high-speed aircraft, ablation particles will peel off from the surface of the heat-resistant material. Under the action of aerodynamic forces, the ablation particles enter the downstream boundary layer, changing the process of friction and heat flow generation in the boundary layer.

[0003] However, high-speed aircraft face extreme mechanical environments, where high temperatures and enthalpies bring about a series of complex physical effects. First, aircraft cruising in the atmosphere are subject to gravity, and ablation particles within the boundary layer are inevitably also affected by gravity. Second, the normal temperature gradient caused by extreme temperatures induces normal thermophoretic forces in the particles, altering their dynamic processes. Third, under extreme temperature conditions, the air ionizes, and particles moving in electromagnetic fields are subject to electromagnetic Lorentz forces. Finally, under extreme temperature conditions, blackbody particles are subjected to radiation from high-temperature heat sources, changing their thermodynamic processes. To date, there is no method to calculate the complex multi-physical processes of ablation particles under extreme mechanical conditions.

[0004] Therefore, how to solve the problem of integrated calculation of specific multi-physics effects of ablation particle two-phase flow under extreme mechanical conditions is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of this invention is to provide a calculation method, device, and medium for the multi-physical effects of ablation particles, which can reflect the complex physical processes under extreme mechanical environments, ensure that numerical simulation can reconstruct the original physical state of ablation, and possess engineering interactivity for ablation problems. The specific solution is as follows:

[0006] A calculation method for the multi-physical effects of ablation particles, comprising:

[0007] Obtain the equivalent inertial terms induced by each of the multiple physical effects;

[0008] The multi-physics particle dynamics process is calculated based on the particle slip resistance term and the equivalent inertial term induced by each of the multi-physics effects.

[0009] The radiation heat transfer equation of spherical particles within any sampling unit volume is made dimensionless to obtain the dimensionless radiation heat transfer equation.

[0010] The dimensionless radiation heat transfer equation is used to calculate the thermodynamic process of thermal radiation particles.

[0011] Preferably, in the calculation method for the multi-physical effects of ablation particles provided in the embodiments of the present invention, obtaining the equivalent inertia term induced by each of the multi-physical effects includes:

[0012] The particle dynamics equations considering multiple physical effects are dimensionless to obtain the equivalent inertial terms induced by each of the multiple physical effects.

[0013] Preferably, in the calculation method for the multi-physical effects of ablation particles provided in the embodiments of the present invention, the particle dynamics equation considering the multi-physical effects is dimensionlessly processed to obtain the equivalent inertial terms induced by each of the multi-physical effects, including:

[0014] The particle dynamics equations considering gravity, electromagnetic, and thermophoretic effects are dimensionless to obtain the equivalent inertial terms caused by gravity, electric field-driven particles, magnetic field-driven particles, and thermophoretic force.

[0015] Preferably, in the calculation method for the multi-physical effects of ablation particles provided in the embodiments of the present invention, the multi-physical particle dynamics process is calculated based on the particle slip resistance term and the equivalent inertial term induced by each of the multi-physical effects, including:

[0016] The multiphysics particle dynamics process is calculated by summing the particle slip resistance term, the equivalent inertia term caused by gravity, the equivalent inertia term caused by electric field-driven particles, the equivalent inertia term caused by magnetic field-driven particles, and the equivalent inertia term caused by thermophoretic force.

[0017] Preferably, in the calculation method for the multi-physics effects of ablation particles provided in the embodiments of the present invention, the following calculation process for multi-physics particle dynamics is adopted:

[0018]

[0019]

[0020] Among them, superscript To represent a dimensionless physical quantity. It is a dimensionless particle velocity vector. It is a dimensionless fluid velocity vector. It is a dimensionless gravitational vector. It is the number of particles floating in Rude. It is the particle velocity vector. It is the reference fluid velocity. It is the interpolated fluid velocity located at the particle's center of gravity. It is a reference scale. It is a gravity vector. It is the reference gravitational constant. It is the density ratio of particles to fluid. It is the particle relaxation time. It is the response coefficient of inertial particles driven by the electric field force. It is the response coefficient of inertial particles driven by the magnetic field deflection force. It is the equivalent inertial response coefficient produced by the thermophoretic force effect. It is the charge density carried by a unit mass of particles. It is the external electric field strength. It is the external magnetic field strength. It is the temperature gradient of the flow field.

[0021] Preferably, in the calculation method for the multi-physical effects of ablation particles provided in the embodiments of the present invention, the response coefficient of the electric field-driven inertial particles is calculated using the following formula. :

[0022]

[0023] in, It is the characteristic response time of inertial particles driven by electric field force. It is the reference unit mass charge density. It is the reference electric field strength;

[0024] The response coefficient of inertial particles driven by magnetic field deflection force is calculated using the following formula. :

[0025]

[0026] in, It is the characteristic magnetic deflection response time driven by the electric field force of inertial particles. It is the reference magnetic field strength.

[0027] Preferably, in the calculation method for the multi-physical effects of ablation particles provided in the embodiments of the present invention, the equivalent inertial response coefficient generated by the thermophoretic force effect is calculated using the following formula. :

[0028]

[0029] in, It is the ratio of gas to solid thermal conductivity. It is the flowing Reynolds number.

[0030] Preferably, in the calculation method for the multi-physical effects of ablation particles provided in the embodiments of the present invention, the expression of the dimensionless radiative heat transfer equation is:

[0031]

[0032] in, It is the thermal convection response coefficient of the particles. It is the thermal response equilibrium coefficient of particles under high-temperature radiation effect. It is the first i Temperature of each spherical particle It is the temperature of the radiant heat source.

[0033] This invention also provides an electronic device, including a processor and a memory, wherein the processor executes a computer program stored in the memory to implement the above-described calculation method for the multi-physical effects of ablation particles as provided in this invention.

[0034] This invention also provides a computer-readable storage medium for storing a computer program, wherein the computer program, when executed by a processor, implements the calculation method for the multi-physical effects of ablation particles as described above in this invention.

[0035] As can be seen from the above technical solution, the method for calculating the multi-physical effects of ablation particles provided by the present invention includes: obtaining the equivalent inertial terms induced by each of the multi-physical effects; calculating the multi-physical particle dynamics process based on the particle slip resistance term and the equivalent inertial terms induced by each of the multi-physical effects; performing dimensionless processing on the radiation heat transfer equation of spherical particles within an arbitrary sampling unit volume to obtain a dimensionless radiation heat transfer equation; and using the dimensionless radiation heat transfer equation to calculate the thermodynamic process of thermal radiation particles.

[0036] The calculation method for the multi-physical effects of ablation particles provided by the present invention can reflect the complex physical processes under extreme mechanical conditions, ensure that the numerical simulation can recreate the original appearance of ablation physics, and has the engineering interactivity of ablation problems. It automatically performs dimensionless transformation, avoids the numerical rigidity caused by the difference in dimensions of different physical problems, and fills the problem that the existing technology cannot calculate the complex process of multi-physical effects of ablation particles under extreme mechanical conditions.

[0037] Furthermore, the present invention also provides a corresponding device and computer-readable storage medium for calculating the multi-physical effects of ablation particles, further making the above method more practical. The device and computer-readable storage medium have corresponding advantages. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0039] Figure 1A flowchart illustrating the calculation method for the multi-physical effects of ablation particles provided in an embodiment of the present invention;

[0040] Figure 2 A schematic diagram illustrating an embedded calculation method for particle dynamics and thermodynamics that considers multiple physical effects, provided in an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of electromagnetic force under extreme mechanical conditions provided in an embodiment of the present invention;

[0042] Figure 4 This is a schematic diagram of thermophoretic force under extreme temperature gradients provided in an embodiment of the present invention;

[0043] Figure 5 This is a schematic diagram of particles being heated by thermal radiation and then heating a fluid through convection heat transfer, as provided in an embodiment of the present invention. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] This invention provides a method for calculating the multi-physical effects of ablation particles, such as... Figure 1 As shown, it includes the following steps:

[0046] S101. Obtain the equivalent inertial terms induced by each of the multiple physical effects;

[0047] It should be noted that ablation particles are subjected to physical effects such as gravity, electric field force, magnetic field force, and thermophoretic force under extreme mechanical conditions. In order to simulate and calculate the gravity, electric field force, magnetic field force, and thermophoretic force experienced by ablation particles under extreme mechanical conditions, this invention first needs to obtain the equivalent inertial terms induced by each of the multiple physical effects and integrate the various physical effects.

[0048] In specific implementation, step S101 obtains the equivalent inertial terms induced by each of the multiple physical effects. Specifically, this may include: performing dimensionless processing on the particle dynamics equations considering multiple physical effects to obtain the equivalent inertial terms induced by each of the multiple physical effects. Since the system of variables input into the user interface has a dimensional form, this invention can automatically calculate and convert it into a dimensionless form, avoiding numerical rigidity caused by dimensional differences in different physical problems and improving the engineering interactivity of ablation problems.

[0049] S102. Calculate the multi-physics particle dynamics process based on the particle slip resistance term and the equivalent inertial term induced by each of the multi-physics effects.

[0050] S103. The radiation heat transfer equation of the spherical particles in any sampling unit volume is made dimensionless to obtain the dimensionless radiation heat transfer equation.

[0051] It should be noted that, in order to simulate and calculate the interphase heat transfer between particles and the carrying fluid under the extreme mechanical environment of ablation, and the extreme high-temperature thermal radiation experienced by the particles, this invention needs to perform dimensionless processing on the radiation heat transfer equation of spherical particles within any sampling unit volume to obtain a dimensionless radiation heat transfer equation.

[0052] S104. The thermodynamic process of thermal radiation particles is calculated using the dimensionless radiation heat transfer equation.

[0053] The calculation method for the multi-physical effects of ablation particles provided in the embodiments of the present invention can reflect the complex physical processes under extreme mechanical environments, ensure that the numerical simulation can recreate the original appearance of ablation physics, and has the engineering interactivity of ablation problems. It automatically performs dimensionless transformation, avoids the numerical rigidity caused by the difference in dimensions of different physical problems, and fills the problem that the existing technology cannot calculate the complex process of multi-physical effects of ablation particles under extreme mechanical conditions.

[0054] In practical applications, with Figure 2 For example, this invention couples the calculation of multiphysics particle dynamics and thermal radiation particle thermodynamics to any basic version of a compressible multiphysics two-phase turbulence parallel solver, enabling efficient parallel calculation of ablation particle dynamics and thermodynamics under extreme mechanical environments. Furthermore, this coupling with any compressible particle two-phase flow calculator provides excellent compatibility, granting it the ability to calculate complex multiphysics ablation particle turbulence processes.

[0055] Furthermore, in a specific implementation, in the above-mentioned calculation method for the multi-physical effects of ablation particles provided in the embodiments of the present invention, the particle dynamics equation considering the multi-physical effects is dimensionlessly processed to obtain the equivalent inertial terms induced by each of the multi-physical effects. Specifically, this may include: performing dimensionless processing on the particle dynamics equation considering the gravitational effect, electromagnetic effect, and thermophoretic effect respectively to obtain the equivalent inertial term caused by the gravitational effect, the equivalent inertial term caused by the electric field driving the particles, the equivalent inertial term caused by the magnetic field driving the particles, and the equivalent inertial term caused by the thermophoretic force effect.

[0056] Specifically, first, consider the particle dynamics equations for the effect of gravity:

[0057] Starting from the general case, this study considers the dynamic equation of an inertial particle in a gravitational field, as shown in equation (1):

[0058] (1)

[0059] Equation (1) gives the particle dynamics equation considering gravity effects and interparticle drag, where, It refers to particle mass. It is the particle velocity vector. t It is a time variable. It is the fluid dynamic viscosity. It is the particle diameter. It is the interpolated fluid velocity located at the particle's center of gravity. It is the fluid mass displaced by the volume of the particles. It is a gravity vector.

[0060] Dimensionless transformation of equation (1) yields equation (2):

[0061] (2)

[0062] in, It is the reference fluid velocity. It is a reference scale. It is the reference gravitational constant. It is the density ratio of particles to fluid. It is the particle relaxation time.

[0063] Simplifying equation (2), we get equation (3):

[0064] (3)

[0065] Among them, superscript To represent a dimensionless quantity, the dimensionless particle velocity vector is represented as... The dimensionless fluid velocity vector is represented as The dimensionless gravity vector is expressed as , This refers to the particle buoyancy number, with the reference length taken as the particle radius. .

[0066] Secondly, consider the particle dynamics equations for electromagnetic effects:

[0067] Consider the force equation for a charged particle in an electromagnetic field, where, It is the electromagnetic Lorentz force vector, see equation (4). It is an electric field vector. It is a magnetic field vector. It is the charge density per unit mass. It refers to particle mass, such as Figure 3 As shown.

[0068] Subsequently, the study considers the dynamics of charged particles in uniform flow and uniform electric fields, as shown in equations (5)-(7):

[0069] (4)

[0070] (5)

[0071] (6)

[0072] (7)

[0073] Among them, superscript Represents a dimensionless physical quantity. It is the particle velocity vector. It is the fluid dynamic viscosity. It is the velocity vector of the fluid element from Euler's perspective. It is the characteristic relaxation time of inertial particles. It is the characteristic time of the flow field. It is particle density. It is the reference unit mass charge density. It is the reference electric field strength. It is the velocity of the reference fluid element. It is the reference flow field characteristic length.

[0074] It is worth noting that, It is the characteristic response time of inertial particles in response to the electric field force. The longer the response time, the stronger the effect of the electric field driving the inertial particles. It is the response coefficient of inertial particles driven by the electric field force. The larger the value, the smaller the inertial effect caused by the electric field driving the particles, and vice versa. It is the equivalent inertia term and particle slip resistance term caused by the electric field driving the particles. Together they determine the particle dynamics process.

[0075] Next, the dynamics of charged particles in uniform flow and uniform magnetic fields are considered, as shown in equations (8)-(10):

[0076] (8)

[0077] (9)

[0078] (10)

[0079] in, It is the characteristic magnetic deflection response time driven by the electric field force of inertial particles. The reference magnetic field strength indicates that the longer the response time, the stronger the deflection effect of the magnetic field on the inertial particles. It is the response coefficient of inertial particles driven by the magnetic field deflection force. The larger the coefficient, the smaller the inertial effect caused by the magnetic field driving the particles, and vice versa. It is the equivalent inertial term caused by the electric field driving the particles, and the particle slip resistance term. Together, they determine the particle dynamics process. On another aspect, It can also be expressed as a dimensionless physical quantity characterizing the relative magnitude of the deflection angular velocity of an inertial particle induced by a magnetic field and the spin angular velocity of a fluid micro-particle. It is the spin angular velocity of the fluid element. It is the deflection angular velocity of an inertial particle induced by a magnetic field. This indicates that the ability of inertial particles to deflect under the influence of a magnetic field is greater than that of fluid micro-clusters to deflect under the influence of eddies in a flow field, and vice versa.

[0080] Next, consider the particle dynamics equations for the thermophoretic force effect:

[0081] (11)

[0082] Equation (11) gives the thermophoretic force experienced by particles in a viscous fluid under a temperature gradient. Essentially, the thermophoretic force... This is due to the momentum generated by the thermal motion of molecules colliding with the particle surface at the microscopic level; its integral effect causes a macroscopic force, such as... Figure 4 As shown, Direction and temperature gradient On the contrary, It is the fluid dynamic viscosity. It is the kinematic viscosity of the fluid. It is the fluid temperature. It is the fluid reference temperature. These are parameters related to thermal conductivity and rarefaction effects. Current research only considers thermal conductivity and does not account for discontinuous flow. ,in, It is the ratio of gas-solid thermal conductivity. It is the thermal conductivity of the gas. It is the thermal conductivity of a solid. It is a Knudsen number. It is the mean free path of the molecules. The characteristic scale of the flow field is the particle diameter. For thermophoretic particle problems, the characteristic scale of the flow field can be taken as the particle diameter. .

[0083] Subsequently, equations (12)-(15) give the particle dynamics equations for thermophoretic particles in a uniform flow under a temperature gradient:

[0084] (12)

[0085] (13)

[0086] (14)

[0087] (15)

[0088] in, This indicates the ratio of gas to solid thermal conductivity. Represents the flow Reynolds number. The equivalent inertial response coefficient generated by the thermophoretic force effect, when As the thermophoretic force approaches infinity, its effect becomes negligible, and vice versa. Specifically, the thermophoretic force parameters... and Proportional to the thermal conductivity of gas and solid. Inversely proportional; this study considers the ratio of gas to solid thermal conductivity. It is a constant. From the expression for the thermophoretic force parameter, we can see that the particle inertia... and the flow Reynolds number The larger the thermophoretic force effect The smaller.

[0089] Furthermore, in a specific implementation, in the above-mentioned calculation method for the multi-physical effects of ablation particles provided in the embodiments of the present invention, step S102 calculates the multi-physical particle dynamics process based on the particle slip resistance term and the equivalent inertia term induced by each of the multi-physical effects. Specifically, it may include: summing the particle slip resistance term, the equivalent inertia term caused by the gravity effect, the equivalent inertia term caused by the electric field driving the particles, the equivalent inertia term caused by the magnetic field driving the particles, and the equivalent inertia term caused by the thermophoretic force effect to calculate the multi-physical particle dynamics process.

[0090] In practical implementation, the following methods can be used to calculate multiphysics particle dynamics processes:

[0091] (16)

[0092] in, It is the charge density carried by a unit mass of particles. It is the external electric field strength. It is the external magnetic field strength. It is the temperature gradient of the flow field.

[0093] It is evident that the dynamic equations of a single particle are not only affected by the resistance to slippage of the Lagrange-phase dispersed particles against the Euler-phase fluid, but also by electric force, magnetic field deflection force, and thermophoretic force induced by the temperature gradient. Since the characteristic physical quantities have been normalized, the orders of magnitude of the equivalent inertial effects induced by each of the aforementioned multi-physical effects are respectively... , , and .

[0094] Furthermore, according to the first law of thermodynamics and the Stefan-Boltzmann law, such as Figure 5 As shown, neglecting convection and conduction, and considering only thermal radiation, the thermal radiation equilibrium of an ideal blackbody particle in a vacuum can be expressed as follows:

[0095] (17)

[0096] in, This is the Stefan-Boltzmann constant. The temperature is the temperature of the radiation source.

[0097] Sampling unit volume Inside, N p The rate of change of heat per particle is:

[0098] (18)

[0099] The simplified equation for the radiative heat transfer of a group of spherical particles within an arbitrary sampling unit volume is:

[0100] (19)

[0101] (20)

[0102] To make equation (20) dimensionless, here The first sampling unit volume is obtained. i The dimensionless relation for radiative heat transfer of a spherical particle:

[0103] (twenty one)

[0104] Among them, the Mach number of the flow field Under completely gaseous conditions The speed of sound is the local speed.

[0105] Pick The characteristic time of dimensionless particle radiative heat transfer:

[0106] (twenty two)

[0107] Substituting into equation (21), we get:

[0108] (twenty three)

[0109] (twenty four)

[0110] in, The thermal response equilibrium coefficient characterizes the particles under the high-temperature radiation effect.

[0111] Particle radiation heat transfer response time It is the Mach number Reference sonic kinetic energy of fluid element Reference heat source power and particle size The function of particle convective thermal response time is similar to that of particle radiative response time, which is a coupling of flow field and particle information.

[0112] when This means the radiative thermal response time Specific particle heat capacity thermal equilibrium response time Much faster, particle temperature Instantly reaches the temperature of the radiant heat source ;when This means the radiative thermal response time Specific particle heat capacity thermal equilibrium response time Much slower, particle temperature The temperature of the radiant heat source It is a non-steady process.

[0113] Based on this, in specific implementation, in the above-mentioned calculation method for the multi-physical effects of ablation particles provided in the embodiments of the present invention, in high-temperature flow containing particles, considering the convective heat transfer and thermal radiation effects between particles and fluid, the first sampled particle within any sampling unit volume... i The dimensionless radiative heat transfer equation for a spherical particle can be expressed as equation (25), that is: the heat balance equation for high-temperature flow containing particles is:

[0114] (25)

[0115] in, It is the thermal convection response coefficient of the particles. It is the thermal response equilibrium coefficient of particles under high-temperature radiation effect. It is the first i Temperature of each spherical particle It is the temperature of the radiant heat source.

[0116] Accordingly, embodiments of the present invention also disclose an electronic device, including a processor and a memory; wherein, when the processor executes a computer program stored in the memory, it implements the calculation method for the multi-physical effects of ablation particles disclosed in the foregoing embodiments.

[0117] For more detailed information on the above methods, please refer to the relevant content disclosed in the foregoing embodiments, which will not be repeated here.

[0118] Furthermore, the present invention also discloses a computer-readable storage medium for storing a computer program; when the computer program is executed by a processor, it implements the aforementioned method for calculating the multi-physical effects of ablation particles.

[0119] For more detailed information on the above methods, please refer to the relevant content disclosed in the foregoing embodiments, which will not be repeated here.

[0120] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the devices and storage media disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple; relevant parts can be referred to the method section.

[0121] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0122] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be implemented directly by hardware, a software module executed by a processor, or a combination of both. The software module can be located in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

[0123] In summary, the present invention provides a method for calculating the multi-physical effects of ablation particles, comprising: obtaining the equivalent inertial terms induced by each of the multi-physical effects; calculating the multi-physical particle dynamics based on the particle slip resistance term and the equivalent inertial terms induced by each of the multi-physical effects; dimensionlessly processing the radiation heat transfer equation of spherical particles within an arbitrary sampling unit volume to obtain a dimensionless radiation heat transfer equation; and calculating the thermodynamic process of thermal radiation particles using the dimensionless radiation heat transfer equation. This method can reflect the complex physical processes under extreme mechanical environments, ensuring that numerical simulations can recreate the original physical state of ablation, and possesses engineering interactivity for ablation problems. It automatically performs dimensionless processing, avoiding numerical rigidity caused by dimensional differences in different physical problems, and fills the gap in existing technologies that cannot calculate the complex multi-physical effects of ablation particles under extreme mechanical conditions. Furthermore, the present invention also provides corresponding equipment and computer-readable storage media for the calculation method of multi-physical effects of ablation particles, further enhancing the practicality of the method. These equipment and computer-readable storage media offer corresponding advantages.

[0124] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0125] The above provides a detailed description of the calculation method, equipment, and medium for ablation particle multi-physical effects provided by this invention. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this invention. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A method for calculating the multi-physical effects of ablation particles, characterized in that, include: Obtain the equivalent inertial terms induced by each of the multiple physical effects; Based on the particle slip resistance term and the equivalent inertial terms induced by the various multi-physics effects, the multi-physics particle dynamics process is calculated using the following formula: ； ； Among them, superscript To represent a dimensionless physical quantity. It is a dimensionless particle velocity vector. It is a dimensionless fluid velocity vector. It is a dimensionless gravitational vector. It is the number of particles floating in Rude. It is the particle velocity vector. It is the reference fluid velocity. It is the interpolated fluid velocity located at the particle's center of gravity. It is a reference scale. It is a gravity vector. It is the reference gravitational constant. It is the density ratio of particles to fluid. It is the particle relaxation time. It is the response coefficient of inertial particles driven by the electric field force. It is the response coefficient of inertial particles driven by the magnetic field deflection force. It is the equivalent inertial response coefficient produced by the thermophoretic force effect. It is the charge density carried by a unit mass of particles. It is the external electric field strength. It is the external magnetic field strength. It is the temperature gradient of the flow field; The radiation heat transfer equation for spherical particles within an arbitrary sampling unit volume is dimensionlessly transformed to obtain a dimensionless radiation heat transfer equation; the expression of the dimensionless radiation heat transfer equation is as follows: ； in, It is the thermal convection response coefficient of the particles. It is the thermal response equilibrium coefficient of particles under high-temperature radiation effect. It is the first i Temperature of each spherical particle It is the temperature of the radiant heat source; The dimensionless radiation heat transfer equation is used to calculate the thermodynamic process of thermal radiation particles.

2. The calculation method for the multi-physical effects of ablation particles according to claim 1, characterized in that, Obtain the equivalent inertial terms induced by each of the multiple physical effects, including: The particle dynamics equations considering multiple physical effects are dimensionless to obtain the equivalent inertial terms induced by each of the multiple physical effects.

3. The calculation method for the multi-physical effects of ablation particles according to claim 2, characterized in that, The particle dynamics equations considering multiple physical effects are dimensionless to obtain the equivalent inertial terms induced by each of the multiple physical effects, including: The particle dynamics equations considering gravity, electromagnetic, and thermophoretic effects are dimensionless to obtain the equivalent inertial terms caused by gravity, electric field-driven particles, magnetic field-driven particles, and thermophoretic force.

4. The calculation method for the multi-physical effects of ablation particles according to claim 3, characterized in that, The multi-physics particle dynamics process is calculated based on the particle slip resistance term and the equivalent inertial term induced by each of the multi-physics effects, including: The multiphysics particle dynamics process is calculated by summing the particle slip resistance term, the equivalent inertia term caused by gravity, the equivalent inertia term caused by electric field-driven particles, the equivalent inertia term caused by magnetic field-driven particles, and the equivalent inertia term caused by thermophoretic force.

5. The calculation method for the multi-physical effects of ablation particles according to claim 4, characterized in that, The response coefficient of an inertial particle driven by an electric field is calculated using the following formula. : ； in, It is the characteristic response time of inertial particles driven by electric field force. It is the reference unit mass charge density. It is the reference electric field strength; The response coefficient of inertial particles driven by magnetic field deflection force is calculated using the following formula. : ； in, It is the characteristic magnetic deflection response time driven by the electric field force of inertial particles. It is the reference magnetic field strength.

6. The calculation method for the multi-physical effects of ablation particles according to claim 5, characterized in that, The equivalent inertial response coefficient generated by the thermophoretic force effect is calculated using the following formula. : ； in, It is the ratio of gas to solid thermal conductivity. It is the flowing Reynolds number.

7. An electronic device, characterized in that, It includes a processor and a memory, wherein the processor executes a computer program stored in the memory to implement the calculation method for the multi-physical effects of ablation particles as described in any one of claims 1 to 6.

8. A computer-readable storage medium, characterized in that, Used to store a computer program, wherein the computer program, when executed by a processor, implements the calculation method for the multi-physical effects of ablation particles as described in any one of claims 1 to 6.

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