59 results about "Fluid particle" patented technology

A substrate support includes a main body portion having a substrate supporting surface and a back surface opposite to the substrate supporting surface, the main body portion having a through-hole extending from the back surface to the substrate supporting surface, an upper porous plug and a lower porous plug disposed in the through-hole, at least one of the upper porous plug or the lower porous plug being detachable from the main body, and a plurality of fluid particles filling a space between the upper porous plug and the lower porous plug in the through-hole. Each of the plurality of fluid particles is formed of an Si-containing material or a resinous material and an Si-containing coating on the resinous material.

The invention provides a semi-analytical MPM-DEM coupling numerical simulation method for interaction of debris flow and a structure, and relates to the field of geotechnical engineering disaster simulation. Taking the fine-grain slurry as a continuous medium, and discretizing by adopting MPM; meanwhile, spherical particles and clustered particles serve as solid phases, and DEM modeling is adopted; structures and boundaries are embedded into the computational domain in the form of rigid walls. Through grid-particle information exchange and two-way transmission of particle-grid coupling force, synchronous solution of fluid-solid multiphase coupling is realized. The fluid-solid contact force adopts a semi-analysis mode; the DEM particles and the DEM particle-wall contact are accurately calculated on the basis of a Hertz-Mindlin model, and the DEM particle-wall contact is accurately calculated on the basis of a Hertz-Mindlin model. According to the method, collaborative collision, blockage and impact mechanisms of block stones and floating woods in debris flow are truly represented, and the three-dimensional large-scale situation of million-level fluid mass points and million-level particles is simulated. The simulation result can output key indexes such as the stress time history, the impact peak value and the blockage rate of the structure, and a reliable numerical basis is provided for debris flow protection.

The application discloses a metallogenic fluid main channel inference model based on particle filtering. The model comprises the following steps: collecting relevant data of a target deposit, establishing an inference database, and defining a state sequence of spatial discrete elements; performing statistics on ore-bearing elements known in all exploration information, taking the known ore-bearing elements as an initial particle group of particle filtering, and generating a spatial channel path of each particle; establishing a metallogenic fluid ion state transfer model coupled with probability and velocity according to the spatial position of the particle and fluid dynamics; establishing a particle weight observation model based on a particle state transfer likelihood function, and dynamically updating the weight of the fluid particle; performing spatial sampling on the particle through a resampling algorithm, updating the weight particle, and outputting a maximum posterior probability path through particle number threshold judgment. The model combines multivariate data constraint and particle filtering algorithm to dynamically estimate the main channel path of the metallogenic fluid in a three-dimensional geological space, and fundamentally solves the problems of high cost and difficult sampling sample acquisition of the traditional method.

The application discloses a bridge scour simulation and boundary setting method for SPH water-sand two-phase flow, and comprises the following steps: model construction, including setting a bed sand layer area range and defining an inlet and outlet boundary area range; particle construction, including setting fluid particles and bed sand particles of a flow field area based on a multiphase flow theory, setting soil yield strength based on a HBP model and introducing a DP yield criterion, initializing inlet and outlet boundary particle parameters, setting particle type identification, and setting particle position identification; N-S control equation solving, obtaining corresponding flow force parameter results; entering a sediment solving module, including sediment particle conversion and viscosity updating calculation; entering an inlet and outlet boundary updating module, including inlet and outlet particle position retrieval, particle type conversion, and particle supplement and deletion; completing a calculation cycle and entering the next cycle; through secondary development based on the SPH multiphase flow theory, the application can realize numerical simulation of foundation local scour by applying the inlet and outlet boundaries to the multiphase flow model and introducing various structure and state models.

The application relates to a fluid simulation method and device, and relates to the technical field of computer graphics. The method comprises the following steps: setting one or more disturbance packages in a space where a fluid object is located, each of the one or more disturbance packages comprising at least one fluid particle, and the initial velocities of the fluid particles in the same disturbance package being the same; and updating the initial velocities of fluid particles outside the one or more disturbance packages according to the gravitational action of the fluid particles in the one or more disturbance packages on the fluid particles outside the one or more disturbance packages.

The present invention discloses a method for simulating weakly compressible fluid smooth particles based on particle position correction, comprising the following steps: 1. Smooth particle modeling of weakly compressible fluid; 2. Smooth particle position correction; 3. Using a computer to input the corrected position vector of the i-th particle, and using a position-based Verlet algorithm to perform time iteration on each particle in the SPH particle model to obtain an updated particle flow field distribution; and 4. Obtaining fluid state parameters from the updated particle flow field distribution. The method of the present invention has simple steps and a reasonable design. By correcting the position of fluid particles, a uniform distribution of simulated particles is achieved without introducing physical parameters, resulting in better applicability to complex flows and improved stability and accuracy of subsequent simulation calculations.

The application discloses a kind of SPH steady flow processing method and related equipment, method includes the input entrance pressure data is converted into entrance speed data;Entrance speed data is based on setting virtual particle;And the data information of fluid particle is updated by the interaction between virtual particle and the fluid particle to be processed, and fluid particle data is judged based on setting parameter threshold, and the particle field information of output is obtained.The application embodiment can be converted into entrance speed data by the entrance pressure data, and virtual particle is set to simulate fluid particle, reduce the speed shock and data noise caused by particle simulation calculation based on entrance pressure, reduce the accumulation of entrance particle simultaneously, improve the stability of entrance boundary, so as to improve the convergence speed and processing efficiency of steady flow simulation.The application can be widely applied in computer simulation and data processing technical field.

Fluid simulation methods and apparatuses, relating to the technical field of computer graphics. A method comprises: providing one or more perturbation packets in a space where a fluid object is located, wherein each of the one or more perturbation packets comprises at least one fluid particle, and the initial velocities of fluid particles in the same perturbation packet are the same; and, on the basis of the attractive effect of fluid particles in the one or more perturbation packets on fluid particles outside the one or more perturbation packets, updating the initial velocities of the fluid particles outside the one or more perturbation packets.

An improved and more efficient three-dimensional flow high-pressure fan has a hub (4) with a wheel disk (6) fixed to the outer edge of the rear side. The hub (4) extends forward along the axial direction. Main blades (7) are fixed radially and evenly around the front side of the wheel disk (6), and thrust blades (8) are fixed radially and evenly around the rear side of the wheel disk (6). The main blades (7) are three-dimensional twisted three-dimensional flow blades, and the thrust blades (8) are straight blades. A small-volume three-dimensional flow impeller design is adopted to fully adapt to the flow characteristics of the gas in the impeller, reduce flow losses, and achieve a larger gas flow and pressure per unit volume by increasing the rotational speed. Static pressure growth is stable, and the fan operates with low noise. It can also control the velocity distribution of all fluid particles inside, obtain the best flow state inside the impeller, and enhance the stable operation capability of the product in an environment of -30℃ to 50℃. The fan diameter can be reduced by 5%, significantly reducing the weight of the equipment. The energy efficiency is significant, with energy saving effect reaching 80%. Maintenance is convenient, and damaged parts can be quickly replaced, reducing maintenance costs.

The application provides a semi-analytical MPM-DEM coupling numerical simulation method for interaction between debris flow and structures, and relates to the field of geotechnical engineering disaster simulation; fine-grained mud is taken as a continuous medium, and MPM is used for discretization; meanwhile, spherical particles and cluster particles are taken as solid phases, and DEM is used for modeling; structures and boundaries are embedded in the calculation domain in the form of rigid walls. Through grid-particle information exchange and two-way transmission of particle-grid coupling forces, synchronous solution of fluid-solid multiphase coupling is realized. The flow-solid contact force is in a semi-analytical mode; the contact between DEM particles and the contact between DEM particles and walls are accurately calculated based on the Hertz-Mindlin model. The method truly reproduces the collaborative collision, blockage and impact mechanism of boulders and driftwood in the debris flow, and simulates the three-dimensional large-scale situation of millions of fluid particles and ten thousand particles. The simulation results can output key indexes such as the stress time history of the structure, the impact peak value and the blockage rate, thereby providing a reliable numerical basis for debris flow protection.

The invention relates to the technical field of fluid-solid coupling calculation, and provides a fluid-solid coupling calculation method, device and method based on MPS-PD, and the method comprises the steps: respectively generating initial particles in fluid and solid initial regions according to a fluid-solid coupling problem, and endowing the particles with corresponding physical quantities and initial conditions; dividing a particle region, and associating other particles in the influence region; mPS calculation is carried out on all the particles at the same time, and the acceleration of the fluid particles in the next time step is solved; carrying out PD calculation on the solid particles to obtain the acceleration of the solid particles at the next moment; updating the speed and displacement of the next particle according to the obtained accelerations of the two particles; and checking whether an overflow calculation region exists between the particles and whether the calculation time exceeds the total time, and performing calculation of the next time step until a stop condition is met. According to the method, the MPS method and the PD method are combined for application, the advantages of the two methods in fluid and solid are exerted, and the accuracy of fluid-solid coupling calculation is improved.

The present disclosure provides a dynamic fluid effect processing method and device, electronic equipment and readable medium, and relates to the technical field of computers. The method comprises: displaying a first object and a fluid in a user display interface; obtaining the position of each model particle in the object model corresponding to the first object; obtaining the position of each fluid particle corresponding to the fluid; when the first object collides with the fluid, for each fluid particle, adjusting the position of the fluid particle according to the position of the model particle colliding with the fluid particle, to dynamically display the motion change of the fluid in the user display interface. The technical scheme provided by the present disclosure adjusts the position of the fluid particle according to the position of the model particle colliding with the fluid particle when the first object collides with the fluid, without calculating the SDF of the first object, simplifying the calculation process and being able to present the motion change effect of the fluid in real time on a mobile terminal.

To provide a simulator allowed to suppress the lowering in accuracy of simulation even where an object has a curved surface.SOLUTION: A simulator comprises: an input section that inputs a simulation condition including information representative of a shape and position of an object arranged in an analysis space and fluid flowing in the analysis space and initial and boundary conditions; a processing section that defines a plurality of secondary curved-surface elements to reproduce a surface of the object, arranges a plurality of fluid particles representative of the fluid in the analysis space and calculates the shortest distance from respective ones of the plurality of fluid particles to the secondary curved-surface elements and furthermore calculates, on the respective ones of the plurality of fluid particles, a force to undergo from the surface of the object based on a calculation value of the shortest distance and determines a behavior of the plurality of fluid particles based on the force calculated; and an output section that information reflecting the behavior of the plurality of fluid particles is outputted.SELECTED DRAWING: Figure 7

A fluid-structure interaction (FSI) simulation method for submerged boundaries based on the material point method and positional dynamics includes: a) solving for the solid state and calculating the Lagrangian elastic force of the solid; b) transferring the elastic force of the solid Lagrangian mesh vertices to the Eulerian background mesh; c) solving the Navier-Stokes fluid control equations and continuity equations on the Eulerian background mesh, feeding back the updated mesh flow field information to the particles, and updating the particle state synchronously; d) using a mapping matrix to map the positions of solid particles back to the vertices of the solid Lagrangian mesh, saving the vertex position data and fluid particle data for rendering output. This invention, through the above-mentioned hybrid Lagrangian-Eulerian perspective coupling solution, can realistically simulate the bidirectional coupling between solids of different materials and complex fluids, significantly improving the physical realism and visual fidelity of the simulation scene.

The utility model relates to a gas flow particulate pollutant detector. When the concentration of solid particulate matters in gas is measured in the prior art, as the particulate matters sink under the action of gravity, the measured numerical value of particulate pollutants has errors. A mixing pipe section (1) is located at the gas inlet end of the gas fluid particle pollutant detector, the mixing pipe section (1), a detection pipe section (3) and a pressure reduction pipe section (4) are sequentially connected, and a detection probe (2) is inserted into the detection pipe section (3) through a detection element (2A); a group of turbulent flow blades (1B) of the mixing pipe section (1) are uniformly distributed in the circumferential direction of the cylinder wall of the mixing pipe cylinder (1A), each turbulent flow blade (1B) is rotationally mounted on the inner wall of the mixing pipe cylinder (1A), and the angle of the plane where the blade surface of each turbulent flow blade (1B) is located is the same as the included angle between the plane where the cross section of the mixing pipe section (1) is located and is 20-70 degrees. According to the utility model, the detection precision is improved by uniformly stirring particles in the gas to be detected and the gas.

The invention relates to the technical field of multi-phase fluid separation, in particular to a multi-phase fluid separation system based on a fractal distributor and a micro cyclone matrix, which comprises a fractal distribution module for distributing the flow of a multi-phase fluid through a multi-stage branch network; the rotational flow matrix module is used for carrying out centrifugal separation treatment through serial / parallel arrangement between a hydrocyclone and a spiral separator; the intelligent regulation and control module is used for determining a control instruction of the rotational flow matrix module through a CFD physical model and an LSTM prediction model; and the self-adaptive feedback module is used for monitoring the fluid particle concentration of an actual separation product pipeline through the ultrasonic optical sensor array, and determining a corresponding response result according to a comparison result of the fluid particle concentration and a preset particle concentration threshold range. According to the multi-phase fluid distributor, highly uniform distribution of multi-phase fluid can be realized, uneven flow and formation of a dead zone are effectively avoided, and stable and consistent feeding conditions are provided for subsequent cyclone separation.

The present invention relates to the technical field of computational fluid dynamics, and specifically to a method for simulating the freezing process of a droplet impacting a cold surface. The specific technical solution is: using the obtained distribution function to perform migration calculations; calculating the macroscopic physical quantities in the flow field based on the mass distribution function and the energy distribution function, and calculating the pressure and pseudo-potential energy of the fluid; calculating the pseudo-potential energy of the virtual fluid, and calculating the interaction forces between fluid particles and the interaction forces between fluid particles and solid walls; calculating the real macroscopic velocity, enthalpy value and solid phase volume fraction of the fluid, the collision term of the distribution function, the force source phase, and the heat source term; performing collision calculations on the mass distribution function and the energy distribution function, and judging whether the convergence condition or the preset number of iterations is met, and outputting the calculation results if it is met; otherwise, continuing the iterative process. The present invention can provide a means for exploring the freezing characteristics and mechanisms of tiny droplets impacting low-temperature surfaces, and provide ideas for the design and development of anti-icing surfaces.

The invention provides a micro-channel fluid simulation method and system, and the method comprises the steps: constructing a D2Q9 model through a lattice Boltzmann method according to a to-be-simulated micro-channel geometric structure, setting basic parameters of the D2Q9 model, and initializing distribution functions of a flow field, a temperature field and a phase field and a corresponding equilibrium state distribution function; respectively executing collision and propagation operations on distribution functions of a flow field, a temperature field and a phase field based on a single relaxation lattice Boltzmann method, and simulating movement among fluid particles, energy transmission and evolution of a two-phase interface; setting boundary conditions of the D2Q9 model, and calculating a macroscopic physical quantity representation simulation result of the fluid at each moment according to an evolution result of each distribution function after collision propagation; and when the D2Q9 model meets a preset simulation termination condition, outputting a D2Q9 model simulation result in a standard data format. According to the scheme, the accuracy of micro-channel internal flow simulation can be improved, and the simulation calculation efficiency is guaranteed.

A direct contact spray refrigeration system (200) includes a refrigeration tower (204) having an interior chamber (208) in which bulk product is delivered in the form of droplets that fall vertically into the interior chamber (208) of the refrigeration tower (204). A coolant fluid capable of contacting and directly freezing the droplets within the interior chamber (208) is also delivered, wherein the droplets are converted into frozen particles collected at the lowermost portion of the column (204). The coolant fluid is delivered in the form of a supercooled cryogenic mist made up of coolant fluid particles through which the droplets vertically pass, and wherein each of the coolant fluid particles is substantially smaller than the droplets delivered to the inner chamber (208) of the freezing compartment, in this way, the structural integrity of the formed droplets is maintained, and the vertical falling trajectory of these droplets is not significantly affected during freezing.

The application provides a GPU fluid simulation method for real-time interactive application, and relates to the technical field of fluid simulation. The method first uses a particle system to emit a large number of particles, calculates fluid particle positions using a position-based fluid particle simulation algorithm, updates the motion state of the particles, then obtains a smooth fluid surface according to the particle positions through screen space processing, and finally uses a realistic rendering method to color the fluid surface to obtain a water body image. Since the state update of the large number of particles and the pixel-level calculation of the screen space are both large-scale parallel calculations, they are suitable for GPU processing, so all the calculation processes involved in the method are run on the GPU end. The method can be widely applied to various demand scenarios in the fields of industrial simulation and electronic games.

The present invention discloses a method, system, electronic device, and storage medium for processing fluid particles near a solid wall boundary. The method obtains the fluid particles to be processed and their corresponding solid wall boundaries, determines a search domain based on the determined solid wall boundaries, searches based on the fluid particles to be processed and the determined search domain, and determines a neighborhood particle set; then, based on the fluid particles to be processed and each particle in the neighborhood particle set, calculates the interaction force between each neighborhood particle and the fluid particles to be processed; processes the interaction force between each neighborhood particle and the fluid particles to be processed to obtain a target force resultant; and by calculating the force between the neighborhood particles and the particles to be processed and superimposing the forces between the particles, the fluid particles are brought closer to the boundary, the boundary gap is reduced, and the simulation accuracy is improved. The embodiments of the present invention can be widely applied in the field of simulation technology.

A method of tracking fluid in a conduit includes converting a volume of the conduit to an equivalent fluid particle count and discretizing a fluid flow in the conduit into discrete, quantifiable fluid particles based on a resolution of a sensor assembly connected to an exit of the conduit. The method includes recording entry timestamps for each of the fluid particles upon passing an entrance to the conduit. A real-time movement of each of the fluid particles between the entrance of the conduit and an exit of the conduit is determined, and an analyte measurement for each of the fluid particles is determined. A transit time for each of the fluid particles is determined and displayed along with the analyte measurement for each of the fluid particles.

The present application discloses a method and device for fluid-solid coupling analysis of slender beams based on the finite particle method and SPH. The structure is discretized into beam particles, the slender beam is simulated by a two-dimensional beam unit, the fluid is simulated by an SPH particle, the pressure transmission of the coupling interface is simulated by a transmission unit, and the displacement coordination of the coupling interface is simulated by a coupling unit. The finite particle method is used for dynamic analysis, and the pure deformation and rigid body displacement of the two-dimensional beam unit are separated by virtual reverse motion, and then the internal force increment of the plane beam unit is calculated; the SPH calculation fluid model is used to give the discrete format of the fluid control equation, the tensile stability control method based on the Shepard Filter and particle displacement correction technology, and the frog leap time integration scheme; the FPM-SPH interface coupling scheme is proposed, the coupling interface particle arrangement method is given, the physical quantity correspondence between the beam particles and the fluid particles at the interface is established, and a two-dimensional beam fluid-solid coupling analysis framework is built. The present application is simple and efficient in calculation, and improves the deficiencies of existing research.

A fluidic microsystem 100 for manipulating particles 1, 2, 3, for example biological cells, comprises a fluidic channel arrangement 10 configured to receive a flow of a fluid 4 with a flow direction S in which the particles 1, 2, 3 are arranged, and which successively includes in the flow direction S a first analysis section 11A, a first actuator section 12A and a second analysis section 11B, a detector device 20 with a field of view 21 covering the first analysis section 11A and the second analysis section 11B, wherein the detector device 20 is configured for radiation-based detection of at least one particle property of each of the particles 1, 2, 3 in the first analysis section 11A and in the second analysis section 11B, and an actuator device 30 configured to subject each of the particles 1, 2, 3 in the first actuator section 12A to a first actuator step.in particular, comprising at least one of the following: the application of a trigger action, the performance of a measurement, and the application of an actuating force. The fluidic channel arrangement 10 has a reversing section 13 with a first leg 13A, a reversing curve, and a second leg 13B, wherein the first analysis section 11A is arranged in the first leg 13A and the second analysis section 11B is arranged in the second leg 13B adjacent to the first analysis section 11A with respect to a direction transverse to the flow direction S. A particle manipulation method for manipulating particles 1, 2, 3 in a fluidic microsystem is also described.

The embodiment of the invention provides a simulation method, device and equipment for the leakage process of a gas pressure pipeline and a medium. The method comprises the steps that a gas pressure pipeline leakage model used for representing the leakage process of the gas pressure pipeline is constructed; according to the gas pressure pipeline leakage model, Lagrange particles are generated, and particle parameters of all the Lagrange particles are initialized; constructing a control equation of the gas pressure pipeline leakage model and a boundary condition corresponding to the control equation under a Lagrange framework; the control equation and the boundary conditions are solved and propelled in time, and all fluid particles are obtained from initialized particle parameters to particle parameters changing along with time. By utilizing the method, the leakage process of the gas pressure pipeline is simulated, the physical information and flow field distribution of the leakage process of the gas pressure pipeline can be accurately described, and the calculation precision is high. And a complex grid division or preprocessing process is not needed in the model establishment stage, so that the modeling time is greatly shortened.

The application provides a method and system for detecting radial velocity of a flow field, and the system for detecting radial velocity of a flow field is used to generate a common Gaussian light beam and a high-order vortex light beam with a non-zero radial coefficient; the high-order vortex light beam is used to irradiate a measured fluid and pass through the measured fluid to generate target detection light carrying radial information of the fluid, and the common Gaussian light is interfered with the target detection light to generate a heterodyne interference signal; a detector is used to detect the heterodyne interference signal and analyze a Doppler spectrum; and the radial velocity of the measured fluid is determined according to the Doppler spectrum. When the detection light irradiates the measured fluid, fluid particles in the measured fluid move radially in a light spot of a high-order vortex light beam orthographic projection, the application uses the high-order vortex light with an intensity distribution in the radial direction to detect the flow field to generate a Doppler effect, so that the radial velocity of the flow field is detected, and therefore the application has a wide application scenario.

The present application relates to oil pipeline technology field, especially to a kind of method, system and electronic equipment for determining mountainous area oil pipeline leakage diffusion path, method includes: obtaining the mountain model of mountainous area where oil pipeline is located, and calculating the resultant force of flow resistance and gravity component that each fluid particle is subjected to on the mountain surface of mountainous area where oil pipeline is located, and the acceleration of each fluid particle under the action of corresponding resultant force, determine the grid corresponding to each fluid particle in mountain model after each unit step length time, record and according to the grid corresponding to each fluid particle in mountain model after each unit step length time, obtain the diffusion path of fluid leaked from oil pipeline.When the oil pipeline in mountainous area leaks, the initial velocity of leakage is relatively large, the present application considers the influence of initial velocity of leakage on leakage diffusion path, so that the determined leakage diffusion path is more accurate and efficient.

The invention relates to an underwater contact explosion-oriented SPH shell particle boundary condition processing method. According to the SPH shell particle boundary condition processing method for underwater contact explosion, the penetration process of particles is divided into three stages: when fluid particles do not penetrate through a wall surface, when the distance between the fluid particles and the wall surface of a shell model reaches a critical value, and when the fluid particles penetrate through the wall surface. When the fluid particles i do not penetrate through the wall surface, a spatial repulsion model proposed by Monaghan and the like is adopted; when fluid particles i penetrate through the wall surface, a repulsive force-restoring force coupling model is constructed. In order to further improve the stability, a viscous damping force model is introduced, and the total acting force Ftol is equal to Frep + Frett + Fvis. According to the processing method, the boundary control capability is effectively enhanced while the ULSPH advantages are reserved, and the numerical stability and physical accuracy of solid-liquid interaction in shell particle and fluid particle coupling simulation are improved.

The invention provides a whole-process simulation method and system for tunnel seepage and water and mud bursting, and the method comprises the steps: building a numerical model containing a tunnel and a fault, and building a solid particle and fluid particle system through meshless particles; a random fracture network is constructed and mapped to solid particles, and attributes are assigned according to fracture filling conditions; calculating particle interaction, introducing a seepage-stress coupling model into a fracture region, and dynamically updating seepage characteristics to simulate implicit seepage; judging damage and fracture of solid particles by using a preset criterion, and representing a cracked block by discrete element particles if the condition is met; calculating contact force between discrete element particles and contact force between discrete element particles and undamaged particles, and simulating movement of fractured rocks; bidirectional fluid-solid coupling is established, and whole-process simulation of seepage inoculation, rock mass fracture and water and mud bursting is achieved through time integration. According to the invention, the strong coupling process of rock mass fracture and large deformation fluid migration is seamlessly simulated through DEM-SPH coupling.

The invention provides a miscible multiphase fluid state prediction method and device, equipment and a medium, and the method comprises the steps: obtaining the state of a fluid system at the current moment, and obtaining at least one physical parameter used for controlling the dynamic evolution behavior of the fluid; according to the Newton's law of motion, calculating initial predicted values of the position and the speed of the fluid particles at the next moment; utilizing the trained multiphase fluid prediction network to predict the position correction of fluid particles and the volume fraction of each phase at the next moment; and obtaining the position and speed of the fluid particle at the next moment according to the position of the fluid particle at the current moment, the initial predicted value of the position and the position correction amount. Physical calculation and multiphase fluid prediction network correction are combined, and the network only needs to learn the deviation from physical basic motion, so that the learning difficulty is reduced, and the simulation process is more stable; and physical parameters are independently used as an input, so that the universality and the flexibility of the model are greatly enhanced.