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在均匀液滴O2(1Δ)发生器的研制过程中,发生器中液流受到外界扰动后,扰动沿着液流表面呈指数增长,最终导致液流破段成液滴。在液滴的形成过程中,各种参数的改变都将对液流的状态产生影响,最终影响O2(1Δ)发生器的总体性能。分别从理论和实验两部分对液滴的形成过程进行了对比分析:理论部分论述了液滴形成的理论依据及在发生器中,外界扰动频率、液流喷射流速的改变对扰动增长率的影响及影响趋势;实验部分以成像的方式着重分析了在相同条件下,分别改变扰动频率、液流喷射流速,液滴流的状态及趋势。实验结合理论,寻求可控参数范围,为均匀液滴发生器的液流研究提供依据。
In the process of developing a uniform droplet O2 (1Δ) generator, the turbulent flow exponentially increases along the surface of the flow after the flow in the generator is disturbed by the outside, resulting in a droplet of liquid flow. During droplet formation, changes in various parameters affect the state of the fluid stream, ultimately affecting the overall performance of the O2 (1Δ) generator. The forming process of droplet was analyzed from two aspects of theory and experiment respectively. The theory part discussed the theoretical basis of droplet formation and the influence of disturbance frequency and flow velocity on disturbance growth rate in generator And the trend of influence. In the experimental part, the states and trends of the disturbance frequency, the jet velocity and the droplet flow were respectively changed under the same conditions by means of imaging. Experiment combined with theory, to seek controllable parameter range, provide a basis for the research of liquid flow of uniform drop generator.