针对地球大气再入返回器的辐射加热计算方法开展了研究,采用NASA的高温空气辐射加热预测软件QRAD中用到的四光谱带模型,同时考虑了辐射散热效应及非平衡辐射加热。对于返回舱大底的辐射加热分布特性,采用了基于牛顿压力分布的计算方法。计算结果表明,发展的高超声速再入体辐射加热预测方法结果可靠。 The radiation heating calculation method for Earth’s atmospheric reentry reflector was studied. The four-band model used in QRAD of NASA’s high-temperature radiant heat forecasting software was adopted. Radiative heat dissipation and unbalanced radiation heating were also considered. For radiative heating distribution of the return capsule outsole, the calculation method based on Newton’s pressure distribution is adopted. The calculation results show that the developed hypersonic reentry radiative heating prediction method is reliable.