【摘要】 通过对某类航天器突起物在高超音速飞行受气动加热时的防热结构进行研究 ,利用ANSYS软件强大的前、后处理功能 ,建立有限元分析模型 ,计算出突起物的温度场分布。该数值模拟方法可用于计算传导和辐射耦合问题。计算结果表明 ,适当增加面板厚度和增大隔热材料在平面内的热传导系数是提高防热结构利用效率的方法之一。更多还原

【Abstract】 The temperature field of insulation structure of the protuberance in some vehicle flying under hypersonic conditions is investigated. It can be modeled by using ANSYS program due to its strong function in heat transfer calculation. The finite element model of the structure is established and the temperature field is calculated by using ANSYS program. This numerical simulation method can be used to simulate the coupled radiation-conduction problem. The results indicate that properly increasing the panel thickness and the heat transfer coefficient of insulation material is one of the methods to improve the thermal protection efficiency.更多还原