Device and method for affecting cloud-unsaturated air turbulence mixing process by strong laser

Abstract

The present invention discloses an apparatus and method for influencing the cloud-fog-unsaturated air turbulent mixing process with a strong laser. The apparatus and method comprise: a support assembly, a cloud-fog simulation chamber, a temperature and humidity measurement assembly disposed within the cloud-fog simulation chamber; a drainage assembly and a temperature control assembly disposed within the cloud-fog simulation chamber; a cloud-fog generation assembly communicating with the inner cavity of the cloud-fog simulation chamber; a strong laser intervention assembly for generating turbulent disturbances of varying intensities at desired locations within the cloud-fog simulation chamber; and a photographic recording assembly disposed in correspondence with the cloud-fog simulation chamber. The present invention can simulate the cloud-fog-unsaturated air turbulent mixing process and the influence of a strong laser on this process in a laboratory environment. Furthermore, the apparatus utilizes PIV measurement methods to obtain global, comprehensive two-phase flow velocity field information, providing experimental conditions for studying cloud-fog mixing mechanisms and developing artificial cloud-fog influence technologies.

Description

Technical Field

[0001] The invention belongs to the technical field of cloud and fog research and artificial weather influencing, and in particular relates to a device and method for using a strong laser to influence a cloud and fog-unsaturated air turbulence mixing process. Background Art

[0002] The turbulent entrainment and mixing process between cloud-saturated air and surrounding unsaturated air is one of the most uncertain processes in cloud physics and dynamics, and is considered the key to unlocking the mystery of warm cloud precipitation. However, due to the limitations of research methods such as numerical simulations and aircraft observations, our understanding of the mechanisms by which turbulent entrainment and mixing affect clouds and fog is far from complete.

[0003] Cloud chambers are essential instruments for studying cloud microphysics and dynamical processes in the field of weather modification. my country has built a variety of cloud chambers with diverse functions, ranging in volume from tens to hundreds of cubic meters. Specialized cloud chambers are also available, such as patent application CN1557132A, which discloses a mixing cloud chamber for simulating supercooled fog; and patent application CN111145626A, which describes a device for simulating laser travel through different cloud layers. Research conducted in these cloud chambers has provided valuable data for the development of cloud physics theory and weather modification technology. However, due to the lack of stable and controllable laboratory simulations, our understanding of the turbulent mixing process between cloud and unsaturated air remains limited. With the continuous advancement of theoretical research, the need for a stable, reliable, and versatile specialized cloud chamber to validate relevant theoretical models is becoming increasingly prominent. Furthermore, because cloud-unsaturated air mixing involves multiphase flow, the flow at the interface between the two phases is extremely complex, making traditional measurement methods incapable of observing this process. Therefore, new flow field methods are needed to observe mixing processes at the water-air interface.

[0004] On the other hand, femtosecond laser is a new way to influence clouds and fog that has attracted much attention internationally in recent years and has broad application prospects. Femtosecond strong laser pulses are focused into light filament structures in the air, which can deposit a large amount of energy in a short period of time, thereby generating significant turbulent disturbances, which have a significant impact on local clouds and fog. However, the specific mechanism of how the turbulent disturbances induced by this strong laser affect clouds and fog has not been well revealed. More importantly, existing laboratory experiments on the influence of femtosecond lasers on clouds and fog are all carried out in small closed cavities. The simulated cloud and fog environment is single and the conditions are harsh, which also makes this technology highly questionable. Therefore, the technology of using femtosecond strong lasers to influence clouds and fog needs further detailed observation experiments to conduct in-depth verification of the relevant mechanisms and technical feasibility, so as to more quickly infer the application of this technology.

[0005] Therefore, it is necessary to design a device and method for using a strong laser to influence the cloud-unsaturated air turbulent mixing process to solve the above technical problems. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention proposes a device and method for using a strong laser to influence the cloud-unsaturated air turbulent mixing process.

[0007] To achieve the above-mentioned object, the present invention provides a device for influencing the cloud-unsaturated air turbulent mixing process by using a strong laser, comprising:

[0008] a bracket assembly, wherein the bracket assembly is fixed on the ground;

[0009] A cloud and fog simulation chamber, the cloud and fog simulation chamber being fixedly connected to the bracket assembly; a temperature and humidity measurement assembly being provided in the cloud and fog simulation chamber; a drainage assembly and a temperature control assembly being further provided in the cloud and fog simulation chamber;

[0010] A cloud and mist generating assembly, the cloud and mist generating assembly being arranged below the cloud and mist simulation chamber and being in communication with the inner cavity of the cloud and mist simulation chamber;

[0011] A strong laser intervention component, the strong laser intervention component is used to generate turbulence disturbances of different intensities at required positions in the cloud simulation chamber;

[0012] A photographing and recording component is provided corresponding to the cloud and fog simulation chamber.

[0013] Preferably, the bracket assembly includes several vertical columns arranged in parallel longitudinally, and a cross beam is fixed between two adjacent vertical columns; the cloud simulation chamber is fixed between several of the vertical columns; a connecting cross bar is slidably connected between the two cross beams, and a connecting vertical bar is fixed to the bottom end of the connecting cross bar, and the connecting vertical bar extends into the cloud simulation chamber.

[0014] Preferably, the cloud simulation chamber includes a bottom plate horizontally fixed between several of the columns, walls are fixed between adjacent columns, the side edges of the walls are fixed in pairs, and the bottom ends of the walls are sealed and fixed to the top surface of the bottom plate; the cloud generating assembly is located below the bottom plate and is connected to the inner cavity of the cloud simulation chamber.

[0015] Preferably, the cloud simulation chamber contains a water layer, and the drainage component and the temperature control component are both arranged corresponding to the water layer.

[0016] Preferably, the cloud generating assembly includes an ultrasonic atomizer, which is fixedly connected and connected to a collection base arranged below the bottom plate. The top of the collection base is fixedly connected and connected to an upper delivery pipe, which passes through the bottom plate and extends into the cloud simulation chamber.

[0017] Preferably, the strong laser intervention component includes a femtosecond laser, the outlet of the femtosecond laser is facing the cloud simulation chamber and is provided with a focusing lens; a first light hole and a second light hole corresponding to the outlet of the femtosecond laser are sequentially opened on the wall surface; a light blocker is provided on the side of the second light hole away from the first light hole.

[0018] Preferably, the temperature and humidity measurement assembly includes several temperature sensors and several humidity sensors fixed to the connecting vertical rod at equal longitudinal intervals, the temperature sensor at the lowest end enters the water layer, and the humidity sensor at the lowest end is 5cm-20cm away from the water layer.

[0019] Preferably, the photographing and recording component includes a CCD camera, the lens of the CCD camera faces the cloud simulation chamber; and an observation port corresponding to the lens of the CCD camera is opened on the wall.

[0020] Preferably, the two wall surfaces adjacent to the wall surface on which the observation port is provided are respectively provided with third light-through hole reflectors, and the reflectors are arranged corresponding to the third light-through hole; a cylindrical mirror is provided at one end of the third light-through hole away from the reflector, a second laser is provided at one end of the cylindrical mirror away from the third light-through hole, and an emission port of the second laser is arranged corresponding to the cylindrical mirror.

[0021] A method for using a strong laser to influence a cloud-unsaturated air turbulent mixing process comprises the following steps:

[0022] S1. Turn on the high-intensity laser intervention component and adjust the laser pulse energy so that the femtosecond laser pulse forms a filament structure in the middle of the cloud simulation chamber and records the height of the filament.

[0023] S2. Block the exit port of the strong laser intervention component and inject distilled water into the bottom of the cloud simulation chamber to form a water layer;

[0024] S3. Turn on the temperature control component, heat the water layer temperature to the specified value, read the temperature value at the corresponding height, and record the temperature value change over time;

[0025] S4. When the minute variation of the temperature at the corresponding altitude is less than 5%, activate the cloud generation component and set the corresponding parameters;

[0026] S5. Start the camera recording component to record the movement of cloud particles;

[0027] S6. After the set time is met, the cloud generating component is turned off and the change process of the cloud and fog airflow is recorded;

[0028] S7. After the fog has naturally dissipated, thoroughly ventilate the fog simulation chamber to remove all droplets and restore it to its original state, thus preparing the conditions for the next measurement.

[0029] S8. Repeat steps S1-S5;

[0030] S9. When the cloud reaches the filament height, remove the object blocking the exit of the high-intensity laser intervention module and record the particle motion image in the focal area of ​​the corresponding femtosecond laser pulse.

[0031] S10. After the set time is met, the cloud generating component is turned off and the changing process of the cloud and fog airflow is recorded using the camera recording component;

[0032] S11. Repeat S1-S10 and conduct multiple comparison experiments;

[0033] S12. Compare the differences in the particle images of the system taken at different times without and with strong laser intervention, and analyze the effect of strong laser intervention.

[0034] Compared with the prior art, the present invention has the following advantages and technical effects: when the present invention is used, an appropriate amount of water is first added to the cloud simulation chamber, and then the boundary is first defined and then blocked by the strong laser intervention component, and the water temperature is adjusted to a specified value by the temperature control component, and then the cloud generation component is started to make the cloud reach the preset boundary, and then the change pattern of the cloud is recorded by the photographing and recording component; then the cloud simulation chamber is emptied, the water layer temperature is adjusted again, the cloud generation component is started to the boundary, and then the baffle blocking the strong laser intervention component is removed to allow the femtosecond laser pulse to pass through the cloud, and the change pattern of the cloud under the influence of the femtosecond laser pulse of this intensity is recorded, the influence of the femtosecond laser pulse being greater than the cloud and fog mixing is studied, and recorded by the photographing and recording component.

[0035] The device of the present invention can form a temperature gradient in the vertical direction with the laboratory temperature by changing the temperature of the water layer at the bottom of the cloud simulation chamber, thereby simulating the cloud-unsaturated air turbulent mixing process in atmospheric environments such as unstable troposphere and stable inversion layer, and can be used to study the effect of artificial intervention in this process using strong laser. It has a simple structure, simulates diverse atmospheric environments, is easy to operate, can be used to study the impact of turbulent disturbances on cloud droplet behavior, and provide a reference for cloud physics research and the development of artificial weather modification technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of this application. The exemplary embodiments and descriptions of this application are intended to explain this application and do not constitute an improper limitation on this application. In the accompanying drawings:

[0037] Figure 1 This is a schematic structural diagram of a device for influencing a cloud-unsaturated air turbulent mixing process using a strong laser according to the present invention;

[0038] Figure 2 Schematic diagram of the optical path of the present invention;

[0039] In the figure: 1. Cloud simulation chamber; 2. Column; 3. Beam; 4. Connecting crossbar; 5. Connecting vertical bar; 6. Temperature sensor; 7. Light blocker; 8. Humidity sensor; 9. Reflector; 10. Femtosecond laser; 11. Focusing lens; 12. First light hole; 13. Ultrasonic atomizer; 14. Collection base; 15. Upper conveying pipe; 16. Temperature control assembly; 17. Drainage assembly; 18. CCD camera; 19. Observation port; 20. Third light hole; 21. Cylindrical mirror; 22. Second laser; 23. Water layer; 24. Second light hole. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] Reference Figure 1-2 As shown, this embodiment provides a device for influencing a cloud-unsaturated air turbulent mixing process using a strong laser, comprising:

[0043] A bracket assembly, wherein the bracket assembly is fixed on the ground;

[0044] The cloud and fog simulation chamber 1 is fixed to the bracket assembly; a temperature and humidity measurement assembly is provided in the cloud and fog simulation chamber 1; a drainage assembly 17 and a temperature control assembly 16 are also provided in the cloud and fog simulation chamber 1;

[0045] A cloud and mist generating assembly is arranged below the cloud and mist simulation chamber 1 and is in communication with the inner cavity of the cloud and mist simulation chamber 1;

[0046] A strong laser intervention component is used to generate turbulence disturbances of different intensities at required positions in the cloud simulation chamber 1;

[0047] The photographing and recording component is arranged corresponding to the cloud simulation chamber 1.

[0048] When the present invention is used, an appropriate amount of water is first added to the cloud simulation chamber 1, and then the boundary is first defined and then blocked by the strong laser intervention component, and the water temperature is adjusted to a specified value by the temperature control component 16, and then the cloud generation component is started to make the cloud reach the preset boundary, and then the change pattern of the cloud is recorded by the photographing and recording component; then the cloud simulation chamber 1 is emptied, the temperature of the water layer 23 is adjusted again, the cloud generation component is started to the boundary, and then the baffle blocking the strong laser intervention component is removed to allow the femtosecond laser pulse to pass through the cloud, and the change pattern of the cloud under the influence of the femtosecond laser pulse of this intensity is recorded, the influence of the femtosecond laser pulse being greater than the cloud and fog mixing is studied, and recorded by the photographing and recording component. The device of the present invention can form a temperature gradient in the vertical direction with the laboratory temperature by changing the temperature of the water layer 23 at the bottom of the cloud simulation chamber 1, thereby simulating the cloud-unsaturated air turbulent mixing process in atmospheric environments such as unstable troposphere and stable inversion layer, and can be used to study the effect of artificial intervention in this process using strong laser. It has a simple structure, simulates diverse atmospheric environments, is easy to operate, and can be used to study the influence of turbulent disturbances on cloud droplet behavior, providing a reference for cloud physics research and the development of artificial weather modification technology.

[0049] To further optimize the solution, the bracket assembly includes several vertically parallel columns 2, with a crossbeam 3 fixed between two adjacent columns 2; the cloud simulation chamber 1 is fixed between the several columns 2; a connecting crossbar 4 is slidably connected between the two crossbeams 3, and a connecting vertical bar 5 is fixed at the bottom end of the connecting crossbar 4, which extends into the cloud simulation chamber 1. In this embodiment, four columns 2 are arranged in a rectangle on the ground, and the cloud simulation chamber 1 is fixed between the four columns 2; there are two crossbeams 3, which are arranged in parallel on the four columns 2, and have a guide rail structure on the crossbeams 3, which are connected and slidably to the guide rail structure of the two crossbeams 3, and the connecting vertical bar 5 fixed at the bottom end thereof extends into the cloud simulation chamber 1 for installing the temperature and humidity measurement assembly.

[0050] A further optimization scheme involves the cloud simulation chamber 1 comprising a base plate horizontally fixed between several columns 2, with walls fixed between adjacent columns 2, the side edges of the walls fixed in pairs, and the bottom ends of the walls sealed and fixed to the top surface of the base plate. The cloud generation assembly is located below the base plate and communicates with the interior of the cloud simulation chamber 1. The cloud simulation chamber 1 comprises a glass base plate and four plexiglass walls, each with a number of light holes for laser light to pass through, reducing interference from the walls. A slot (not shown) is located at the top of the wall, allowing for the installation of plexiglass to increase the height of the wall. The cloud generation assembly is located below the base plate to simulate the generation of cloud fog entering the cloud simulation chamber 1.

[0051] In a further optimized solution, the cloud simulation chamber 1 contains a water layer 23, and the drainage assembly 17 and temperature control assembly 16 are both disposed corresponding to the water layer 23. The water layer 23 uses distilled water. The temperature control assembly 16 is used to regulate the temperature of the water layer 23, stabilizing the temperature of the bottom water layer 23 at any value between 5°C and 30°C. The drainage assembly 17 is used to drain the water layer 23 contained in the cloud simulation chamber 1.

[0052] Further optimization scheme, the cloud mist generating assembly includes an ultrasonic atomizer 13, the ultrasonic atomizer 13 is fixedly connected and communicated with a collecting base 14 arranged below the bottom plate, the top of the collecting base 14 is fixedly connected and communicated with an upper delivery pipe 15, and the upper delivery pipe 15 passes through the bottom plate and extends into the cloud simulation chamber 1. The cloud mist generating assembly is composed of an ultrasonic atomizer 13 at the bottom, a collecting base 14, a fan, a flow meter and an upper delivery pipe 15. The collecting base 14 is used to concentrate the cloud droplets generated by the ultrasonic atomizer 13. The fan has a suction function and is used to draw the droplets from the collecting base 14 into the cloud simulation chamber 1. The fan speed can be used to adjust the concentration of the droplets. In this embodiment, the water layer 23 is 5 cm high and the length of the upper delivery pipe 15 is 40 cm, which can generate an ascending airflow close to laminar flow. The number of ultrasonic atomizers 13 can be multiple, and the concentration of the mist-containing airflow is controlled by the number of ultrasonic atomizers 13 turned on and the rotation speed of the fan not marked in the figure.

[0053] To further optimize the solution, the high-intensity laser intervention component includes a femtosecond laser 10, the emission port of which faces the cloud simulation chamber 1 and is equipped with a focusing lens 11. A first light hole 12 and a second light hole 24 corresponding to the emission port of the femtosecond laser 10 are sequentially opened on the wall. A light blocker 7 is correspondingly provided on the side of the second light hole 24 away from the first light hole 12. The femtosecond laser pulse emitted by the femtosecond laser 10 passes through the focusing lens 11 and is emitted into the cloud simulation chamber 1 through the first light hole 12. A light filament is formed above the upper conveying pipe 15 in the cloud simulation chamber 1, then exits from the second light hole 24 and is finally blocked by the light blocker 7 to prevent it from affecting other objects.

[0054] Further optimizing the solution, the temperature and humidity measurement assembly includes several temperature sensors 6 and several humidity sensors 8 fixed to the connecting vertical rod 5 at equal intervals in the longitudinal direction. The lowest temperature sensor 6 enters the water layer 23, and the lowest humidity sensor 8 is 15cm-20cm away from the water layer 23. The temperature sensor 6 is a thermocouple temperature sensor 6, and the humidity sensor 8 is a semiconductor humidity sensor 8. Both are fixed to the connecting vertical rod 5 for measuring temperature and humidity. In this embodiment, there are 20 temperature sensors 6, arranged vertically at equal intervals, each 5cm apart. The lowest thermocouple temperature sensor 6 just immerses in the water, allowing for gradient measurement of temperature changes. There are 10 humidity sensors 8, arranged vertically at equal intervals, each 8cm apart. The lowest humidity sensor 8 is 20cm away from the water surface, allowing for gradient measurement of humidity changes.

[0055] A further optimized solution is that the photo recording component includes a CCD camera 18, and the lens of the CCD camera 18 faces the cloud simulation chamber 1; an observation port 19 corresponding to the lens of the CCD camera 18 is provided on the wall; the two wall surfaces adjacent to the wall surface with the observation port 19 are respectively provided with a third light hole 20 and a reflector 9, and the reflector 9 is provided corresponding to the third light hole 20; a cylindrical mirror 21 is provided at the end of the third light hole 20 away from the reflector 9, and a second laser 22 is provided at the end of the cylindrical mirror 21 away from the third light hole 20, and the emission port of the second laser 22 is provided corresponding to the cylindrical mirror 21. The photographic recording system consists of a second laser 22, an observation window, a reflector 9, a CCD camera 18, a third light hole 20, and a cylindrical mirror 21. The observation window is a flange hole that is long in the vertical direction and short in the horizontal direction. The reflector 9 is located on the left chamber wall and is arranged corresponding to the third light hole 20. It enhances the light intensity in the imaging plane through reflection. The second laser 22 uses a double-pulse Nd:YAG laser with the following parameters: wavelength 532nm, single pulse energy 30mJ, and pulse width 5ns. The light beam emitted by the second laser 22 generates a sheet-like irradiation beam after passing through the cylindrical mirror 21. After passing through the third light hole 20, it irradiates the cloud droplets on the water layer 23. The generated scattered light is recorded by the CCD camera 18. By analyzing the images recorded by two consecutive camera frames and the particle cross-correlation analysis method, the two-dimensional velocity field distribution of the particles can be obtained.

[0056] Furthermore, the CCD camera 18 may be a high-definition SLR camera, a high-speed CCD camera, or a light field CCD camera 18 .

[0057] Furthermore, an aerosol particle size spectrometer may be added at an appropriate position in the cloud simulation chamber 1 to record changes in cloud particle concentration and particle size.

[0058] A method for using a strong laser to influence a cloud-unsaturated air turbulent mixing process comprises the following steps:

[0059] S1. Turn on the strong laser intervention component and adjust the laser pulse energy so that the femtosecond laser pulse forms a light filament structure in the middle of the cloud simulation chamber 1 and records the height of the filament;

[0060] S2. Block the strong laser intervention component outlet and inject distilled water into the bottom of the cloud simulation chamber 1 to form a water layer 23;

[0061] S3. Turn on the temperature control component 16, heat the water layer 23 to a specified temperature, read the corresponding height temperature value, and record the temperature value time change;

[0062] S4. When the temperature at the corresponding altitude changes by less than 5% over a one-minute period, activate the cloud generation component and set the corresponding parameters.

[0063] S5. Start the camera recording component to record the movement of cloud particles;

[0064] S6. After the set time is met, the cloud generating component is turned off and the change process of the cloud and fog airflow is recorded;

[0065] S7. After the fog has naturally dissipated, thoroughly ventilate fog simulation chamber 1 to remove all droplets and restore it to its original state, thereby preparing for the next measurement.

[0066] S8. Repeat steps S1-S5;

[0067] S9. When the cloud reaches the filament height, remove the object blocking the exit of the high-intensity laser intervention module and record the particle motion image in the focal area of ​​the corresponding femtosecond laser pulse.

[0068] S10. After the set time is met, the cloud generating component is turned off and the changing process of the cloud and fog airflow is recorded using the camera recording component;

[0069] S11. Repeat S1-S10 and conduct multiple comparison experiments;

[0070] S12. Compare the differences in the particle images of the system taken at different times without and with strong laser intervention, and analyze the effect of strong laser intervention.

[0071] The technical effects produced:

[0072] 1. By controlling the temperature of the lower water layer, the vertical stability can be changed to simulate the evolution of different types of clouds;

[0073] 2. It can simulate the turbulent mixing process of cloud-containing fog airflow and unsaturated airflow at the cloud boundary, and study the physical processes such as droplet collision and evaporative cooling;

[0074] 3. By controlling the fan suction speed, the rapid development of cumulus clouds under strong updraft conditions or the mixing process of stratocumulus clouds at the top under weak updraft conditions can be simulated;

[0075] 4. By controlling the number of ultrasonic atomizers 13 started and the speed of the fan suction, cloud environments of different concentrations are simulated;

[0076] 5 Using strong lasers to generate turbulence of different intensities and accurately exert artificial effects on designated cloud locations can provide a reference for exploring the technology of artificially influencing convective clouds or stratocumulus clouds.

[0077] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0078] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A device for influencing the cloud-unsaturated air turbulent mixing process with a strong laser, characterized in that: include: a bracket assembly, wherein the bracket assembly is fixed on the ground; A cloud simulation chamber (1), wherein the cloud simulation chamber (1) is fixedly connected to the support assembly; a temperature and humidity measuring assembly is provided in the cloud simulation chamber (1); the cloud simulation chamber (1) is further provided with a drainage assembly (17) and a temperature control assembly (16); the support assembly comprises a plurality of vertical columns (2) arranged in parallel in the longitudinal direction, a crossbeam (3) being fixedly connected between two adjacent vertical columns (2); the cloud simulation chamber (1) is fixedly connected between the plurality of vertical columns (2); a connecting cross bar (4) is slidably connected between the two cross beams (3), a connecting vertical bar (5) being fixedly connected to the bottom end of the connecting cross bar (4), and the connecting vertical bar (5) extending into the cloud simulation chamber (1); the temperature and humidity measuring assembly comprises a plurality of temperature sensors (6) and a plurality of humidity sensors (8) fixedly connected to the connecting vertical bars (5) at equal intervals in the longitudinal direction; A mist generating assembly, the mist generating assembly being arranged below the mist simulation chamber (1) and communicating with the inner cavity of the mist simulation chamber (1); the mist simulation chamber (1) comprising a bottom plate fixedly connected horizontally between a plurality of the upright posts (2), with walls fixedly connected between adjacent upright posts (2); a water layer (23) being contained in the mist simulation chamber (1), the drainage assembly (17) and the temperature control assembly (16) being arranged corresponding to the water layer (23); A strong laser intervention component, the strong laser intervention component is used to generate turbulence disturbances of different intensities at required positions in the cloud simulation chamber (1); A photographing and recording component is provided corresponding to the cloud simulation chamber (1); the photographing and recording component includes a CCD camera (18), the lens of the CCD camera (18) faces the cloud simulation chamber (1); an observation port (19) corresponding to the lens of the CCD camera (18) is provided on the wall; two wall surfaces adjacent to the wall surface provided with the observation port (19) are respectively provided with a third light hole (20) and a reflector (9), the reflector (9) being provided corresponding to the third light hole (20); a cylindrical mirror (21) is provided at one end of the third light hole (20) away from the reflector (9), a second laser (22) is provided at one end of the cylindrical mirror (21) away from the third light hole (20), and an emission port of the second laser (22) is provided corresponding to the cylindrical mirror (21).

2. The device for influencing the cloud-unsaturated air turbulent mixing process by a strong laser according to claim 1, characterized in that: The side edges of the wall are fixedly connected in pairs, and the bottom end of the wall is sealed and fixedly connected to the top surface of the bottom plate; the cloud generating component is located below the bottom plate and is connected to the inner cavity of the cloud simulation chamber (1).

3. The device for influencing the cloud-unsaturated air turbulent mixing process by using a strong laser according to claim 1, characterized in that: The cloud generation assembly includes an ultrasonic atomizer (13), the ultrasonic atomizer (13) is fixedly connected to and communicated with a collection base (14) arranged below the bottom plate, the top end of the collection base (14) is fixedly connected to and communicated with an upper delivery pipe (15), and the upper delivery pipe (15) passes through the bottom plate and extends into the cloud simulation chamber (1).

4. The device for influencing the cloud-unsaturated air turbulent mixing process by a strong laser according to claim 1, characterized in that: The strong laser intervention component comprises a femtosecond laser (10), the emission port of the femtosecond laser (10) faces the cloud simulation chamber (1) and is provided with a focusing lens (11); a first light hole (12) and a second light hole (24) corresponding to the emission port of the femtosecond laser (10) are sequentially opened on the wall surface; and a light blocker (7) is correspondingly provided on a side of the second light hole (24) away from the first light hole (12).

5. The device for influencing the cloud-unsaturated air turbulent mixing process by using a strong laser according to claim 1, characterized in that: The temperature sensor (6) at the lowest end enters the water layer (23), and the humidity sensor (8) at the lowest end is 15 cm to 20 cm away from the water layer (23).

6. A method for using a strong laser to influence a cloud-unsaturated air turbulent mixing process, based on the device for using a strong laser to influence a cloud-unsaturated air turbulent mixing process according to any one of claims 1 to 5, characterized in that The following steps are involved: S1. Turn on the strong laser intervention component and adjust the laser pulse energy so that the femtosecond laser pulse forms a light filament structure in the middle of the cloud simulation chamber (1), and record the height of the filament; S2. Block the strong laser intervention component outlet and inject distilled water into the bottom of the cloud simulation chamber (1) to form a water layer (23); S3. Turn on the temperature control component (16), heat the water layer (23) to a specified value, read the temperature value at the corresponding height, and record the temperature value change over time; S4. When the temperature at the corresponding altitude changes by less than 5% in one minute, activate the cloud generation component and set the corresponding parameters. S5. Start the camera recording component to record the movement of cloud particles; S6. After the set time is met, the cloud generating component is turned off and the change process of the cloud and fog airflow is recorded; S7. After the fog dissipates naturally, the fog simulation chamber (1) is thoroughly ventilated to remove all droplets and restore the original state, thereby preparing conditions for the next measurement; S8. Repeat steps S1-S5; S9. When the cloud reaches the filament height, remove the object blocking the exit of the high-intensity laser intervention module and record the particle motion image in the focal area of ​​the corresponding femtosecond laser pulse. S10. After the set time is met, the cloud generating component is turned off and the changing process of the cloud and fog airflow is recorded using the camera recording component; S11. Repeat S1-S10 and conduct multiple comparison experiments; S12. Compare the differences in component particle images taken at different times without and with strong laser intervention, and analyze the effects of strong laser intervention.

Images