气候环境实验室降雪环境模拟技术研究

目的建立实验室降雪环境模拟技术,为飞机等武器装备降雪环境适应性试验验证提供技术支持。方法基于对自然降雪和实验室模拟降雪机理的对比与分析,提出影响实验室内模拟降雪的关键因素,并结合理论分析和试验研究,得出实验室内模拟降雪环境的冷负荷计算方法和最优成雪的水粒直径。结果建立了实验室降雪环境模拟技术,采用该降雪环境模拟技术,降雪强度及降雪品质均满足飞机等武器装备降雪环境适应性试验验证需求。结论建立的降雪环境模拟技术切实有效,可用于实验室飞机等武器装备降雪环境适应性试验研究。

Technology on Snow Simulation in Climatic Environment Test Facility

The paper aims to build a snow simulating technique and provide technical supports for aircraft snow test in climatic environment test facility. Based on the comparative analysis and tests on mechanisms of natural snow and its laboratory simulation, key factors of simulating snow were proposed. In combination with theoretical analysis and experimental study, the optimal water particle diameter and the cooling loads of simulating snow in facility were elucidated. The paper built the simulating snow technique for the climatic environment test facility. Both intensity and quality of the snow met the requirement on snow environment compatibility test of aircraft and other weaponry. The environmental simulating snow technique is practical and effective, and could be used to study the snow environment adaptability of aircraft and other weaponry in facility.