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应用万核级并行流场数值模拟软件CCFD,在深腾7000高性能计算机上对飞机高速巡航构型阻力和低速增升装置性能预测进行了计算研究,比较了不同规模网格、湍流模型对计算结果的影响,并且将高性能计算与常规计算的工作效率进行了比较.飞机高速巡航构型阻力和低速增升装置性能预测的计算结果与试验结果较为接近,可见:CCFD软件的常规气动计算精度较高;高性能计算技术可有效提高数值计算的可靠性及工作效率;单纯增加网格规模,而不进行算法升级,对复杂问题计算精度的提高有限.
Based on the CCFD numerical simulation software of nuclear flow parallel flow field, the performance prediction of high-speed cruise configuration resistance and low-speed lifting device was calculated on Shen-Teng 7000 high-performance computer. Comparisons were made between different size grids and turbulence models The results of which are compared with those of conventional calculation.Compared with the experimental results, the calculation results of the prediction of aircraft high-speed cruise configuration resistance and low-speed lifting device are in good agreement with the experimental results. It can be seen that the conventional aerodynamic calculation accuracy of CCFD software Higher; high-performance computing technology can effectively improve the reliability and efficiency of numerical calculation; simply increase the grid size without algorithm upgrades, the computational complexity of complex problems to improve the limited.