收稿日期:
2023-11-13
修回日期:
2024-02-28
接受日期:
2024-03-11
出版日期:
2024-04-25
发布日期:
2024-04-19
通讯作者:
岳皓
E-mail:haoeryue15@163.com
基金资助:
Junwu HONG, Wei LI, Hao YUE(), Dehong MENG, Yan SUN
Received:
2023-11-13
Revised:
2024-02-28
Accepted:
2024-03-11
Online:
2024-04-25
Published:
2024-04-19
Contact:
Hao YUE
E-mail:haoeryue15@163.com
Supported by:
摘要:
基于国家数值风洞(NNW)系统的流固耦合模拟软件平台NNW-FSI,系统性地提出了解决超大规模结构网格生成的重构加密方法,以及基于多重网格粗化技术的壁面距离搜索、重叠网格贡献单元搜索和拼接网格拼接单元搜索算法,并基于同构系统的纯MPI方法和MPI+OpenMP混合并行方法,基于异构系统的MPI+OpenACC混合并行方法,开发了超大规模结构网格CFD数值模拟的前置网格生成模块、流场求解模块和后置显示模块。在国产大型同构和异构集群系统上,实现了百亿级超大规模结构网格在百万核上的CFD数值模拟,取得了良好的并行效率。数值结果表明,该方法具有良好的网格收敛性、多核一致性和计算精度,为下一步的工作展开打下了良好基础。
中图分类号:
洪俊武, 李伟, 岳皓, 孟德虹, 孙岩. 超大规模结构网格CFD数值模拟初步研究[J]. 航空学报, 2024, 45(20): 129866.
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