Modeling Heatshield Erosion Due to Dust Particle Impacts for a Martian Entry Vehicle

[摘要] Because planetary missions to Mars take years from initial design to arrival at Mars, and because of the unpredictability of major global dust storms, the de-sign of the thermal protection system (TPS) of a Mars entry vehicle requires an estimation for the potential damage caused by dust particle impacts on the heat-shield. This paper will review previous analytical and experimental approaches to modeling dust particle ero-sion and will compare the legacy models against more modern computational techniques and new dust ero-sion models that will be based on upcoming experi-ments in the German Aerospace Center (DLR) GBK facility. The various models will be compared by incorporating them into the Icarus material response code applied to a representative vehicle entering the Martian atmosphere.

[发布日期] 2019-09-30

[学科分类] 天文学(综合)

[关键词] VIKING LANDER SPACECRAFT;DUST STORMS;ATMOSPHERIC COMPOSITION;MARS ENVIRONMENT;HEAT SHIELDING;SOLAR RADIATION