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针对载人航天器舱内气体在太空中的泄漏问题,提出内外舱同时升压法来进行数值模拟计算,引入无量纲参数气体泄漏因子来判定气体泄漏量。采用基于Simple算法的有限体积法,对载人航天器舱内气体泄漏状态进行仿真,并分析了气体泄漏过程中影响参数。结果表明:增加镀铝薄膜层厚度和减小镀铝薄膜层材料孔隙率都能同时减弱气体泄漏因子,使气体泄漏量降至最小。
In order to solve the problem of spaceborne gas leakage in manned spacecraft, a method of simultaneously boosting the inside and outside of the spacecraft was proposed to carry out numerical simulation. The gas leakage factor was introduced to determine the amount of gas leakage. The finite volume method based on Simple algorithm was used to simulate the gas leakage in manned spacecraft and the influence parameters in gas leakage process were analyzed. The results show that both increasing the thickness of the aluminized film and reducing the porosity of the aluminized film can simultaneously reduce the gas leakage factor and minimize the gas leakage.