摘要
我们将目前计算流体力学中比较流行的高精度WENO(Weighted Essentially Non-Oscillatory)格式引入到大规模并行计算求解中,使用隐式WENO3阶格式和WENO5阶格式对ONERA-M6翼型和DLR-F6机身/机翼以及DLR-F6机身/机翼/发动仓/吊架模型进行了模拟测试。并行规模从64核到1 024核。通过数值计算结果和实验结果的对比分析,得出WENO格式在大规模并行计算中能够有效的发挥其高精度的优势,对于激波捕获和涡脱离流动的模拟中能够获得较好的模拟效果。
WENO （Weighted Essentially Non-Oscillatory） is a popular high precision scheme in CFD. In this paper, WEDO is introduced into large-scale parallel simulation. The simulation tests for ONERA-M6 Wing, DLR-F6 Body/Wing and DLR-F6 Body/Wing/Nacelle/Pylon modes are performed with the implicit WENO 3-order and WENO 5-order schemes. The number of compute nodes is ranged from 64 to 1024. The comparison of calculation with experimental results shows that the WENO schemes in massively parallel computing can effectively play its advantages of high-precision, and get good results in shockwave and vortex flow simulation.
出处
《科研信息化技术与应用》
2013年第5期76-89,共14页
E-science Technology & Application
基金
国家自然科学基金(91130019)
国家高技术研究发展计划(863计划)(2012AA01A304)
