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系统分析了AUSM类空间离散格式中AUSM+、AUSMDV及AUSMPW三种格式的构造方法及特点,并分别对钝锥、钝双锥的高超粘性绕流流场进行了数值模拟,重点分析了格式对热流数值模拟结果的影响。数值结果表明:AUSM类格式在高超音速流动模拟中具有高间断分辨率和数值稳定性,其中AUSM+和AUSMPW格式更适用于热流数值模拟,而AUSMDV格式可能会出现“红玉”现象。
AUSM +, AUSMDV and AUSMPW spatial discrete formats are systematically analyzed. The numerical simulation of the hyper-viscous flow around a blunt cone and a blunt cone is carried out. The effects of the format on the heat flow Effect of numerical simulation results. The numerical results show that the AUSM class format has high discontinuity resolution and numerical stability in hypersonic flow simulation. The AUSM + and AUSMPW formats are more suitable for numerical simulation of heat flow, while the AUSMDV format may appear “ruby”.