A flow detection device and detection method for simulating the droplet flow environment in ablation
A technology of flow detection and power control device, which is applied in the direction of measuring device, fluid dynamics test, machine/structural component test, etc. It can solve the problems of no air flow effect and the inability to dynamically reveal the flow law of droplets, so as to avoid rapid evaporation disappearing effect
Active Publication Date: 2019-05-07
TSINGHUA UNIV
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Feng Xue's research group at Tsinghua University has studied the fusion process of droplets, but due to the limitation of experimental conditions, the fusion process of droplets is a fusion process at room temperature, without air flow, and it is impossible to dynamically reveal the liquid from multiple observation angles. trickle flow law
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[0035] The present invention will be further elaborated below through specific embodiments in conjunction with the accompanying drawings.
[0036] Such as figure 1As shown, the flow detection device for simulating the droplet flow environment in ablation in this embodiment includes: a droplet flow platform 1, a wind speed power control device 2, a refrigeration device 3, a sealing device, an observation window 4, a heating system, and a heat insulation layer 5. Light source 7, overlooking camera 81 with blue light filter, side view camera 82 with blue light filter, trigger, infrared thermometer 9, computer, bracket and angle adjustment connector; wherein, the horizontally placed liquid The droplet flow platform 1 is set on the bracket through the angle adjustment connector; the wind speed power control device 2 is arranged at the front end of the droplet flow platform 1; the cooling device 3 is arranged at the end of the droplet flow platform 1; The sealing device forms a clo...
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The invention discloses a flowing detection device and detection method of simulating a liquid drop flowing environment in ablation. The flowing detection method of simulating a liquid drop flowing environment in ablation includes the steps: putting solid matter particles on an angle-adjustable liquid drop flowing platform, forming a sealed space with an observation window on the liquid drop flowing platform, utilizing a heating system to heat the solid matter particles into liquid drops under the liquid drop flowing platform, starting a wind speed power control device to blow the liquid dropsto flow on the liquid drop flowing platform while a downward view camera and a side view camera acquires the liquid drop top downward topograph and a liquid drop side view topograph at the same time,and transmitting the liquid drop top downward topograph and the liquid drop side view topograph to a computer to obtain the dynamic process of generation, flowing, fusion and evolution of the liquiddrops on the surface of the liquid drop flowing platform. The flowing detection device and detection method of simulating a liquid drop flowing environment in ablation can perform quantitative measurement and analysis on the liquid drop wake parameter, the liquid drop flowing speed, the liquid drop fusion parameter and the like, can effectively avoid the situation that common liquid drops are evaporated to disappear quickly in the high temperature condition, and can obtain the shape information of the liquid drops more comprehensively.
Description
technical field [0001] The invention relates to structural deformation technology, in particular to a flow detection device and a detection method for simulating the flow environment of liquid droplets in ablation. Background technique [0002] In the field of aerospace, the complex service environment of high temperature and high-speed flow field has brought great challenges to the thermal protection of aerospace. Especially during the reentry process of a hypersonic vehicle, when the vehicle reaches a certain speed, the leading edge of the vehicle interacts violently with the air, and the surface temperature of the leading edge rises sharply, causing the structural materials on the surface of the leading edge of the vehicle to melt due to aerodynamic heating, and then Droplets are formed, and a series of evolution processes such as flow and fusion are generated under the action of airflow. The generation and flow of droplets will have a huge impact on hypersonic vehicles....
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IPC IPC(8): G01M10/00
CPCG01M10/00
Inventor 冯雪朱相宇方旭飞唐云龙岳孟坤屈哲
Owner TSINGHUA UNIV