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姿控发动机羽流中的液相物质是羽流污染的重要来源,会对航天器及敏感器件表面造成磨损及沉积等危害。为了更好的防护姿控发动机羽流液相污染,分析了姿控发动机羽流液相污染物形成的原因,可能对航天器及敏感器件造成的损害。针对液相污染产生、输运和表面作用三个过程,指出了不同仿真阶段所采用的建模方法和羽流污染效应仿真的新趋势。结合德国汉堡大学羽流试验装置,给出了测量发动机液相污染常用的方法及典型试验结果。对防护羽流液相污染提出了建议,可为分析和防护姿控发动机液相污染提供参考。
The liquid phase material in the attitude control engine plume is an important source of plume pollution, which may cause damage to the surface of spacecraft and sensitive devices such as wear and sedimentation. In order to better protect the liquid phase contamination of attitude control plume, the formation of liquid phase pollutants in attitude control plume is analyzed, which may cause damage to spacecraft and sensitive devices. In view of the three processes of liquid pollution generation, transport and surface effect, the modeling methods adopted in different simulation stages and the new trend of plume pollution simulation are pointed out. Combined with the plume test device at Hamburg University, Germany, the commonly used methods and typical test results for measuring liquid phase pollution in engine are given. Some suggestions are put forward for the protection of plume liquid phase pollution, which can provide reference for the analysis and protection of the liquid contamination of attitude control engine.