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为研究导弹热发射过程中产生的高温高速燃气射流对无导流器的发射车轮胎的烧蚀和冲击,建立完全结构化网格的发射车计算流体力学模型,对无挡板和有挡板两种工况的燃气流场进行了计算,得到了轮胎及油缸表面的温度分布。计算结果表明,加入挡板可以减小左侧轮胎和油缸的最高温度和最大压力,可以减小右侧轮胎表面的高温区域面积,起到较好的热防护效果。
In order to study the ablation and impact of high-temperature and high-speed gas jets generated from the heat emission of missiles on the launching vehicle tire without deflector, a fully structured grid launching vehicle computational fluid dynamics model is established. For baffleless and baffled The gas flow field in two conditions was calculated, and the temperature distribution on the tire and cylinder surface was obtained. The calculation results show that adding the baffle can reduce the maximum temperature and the maximum pressure of the left tire and the cylinder, and can reduce the area of the high temperature area on the right tire surface, thereby achieving better heat protection effect.