计算力学学报2019，Vol.36Issue(1)：35-42,8.DOI:10.7511/jslx20170929004
多维迎风方法在非结构/混合网格热流计算中的应用研究
Application of multi-dimensional upwind scheme in hypersonic aeroheating predictions on unstructured/hybrid grids
摘要
Abstract
The unstructured/hybrid grid has a strong geometric flexibility and is widely used in the numerical simulation of aerodynamic characteristics of complex vehicles.However, it is hard to predict the aerothermodynamic environment accurately.Based on the three requirements of hypersonic aeroheating on unstructured/hybrid grid, a multi-dimensional upwind method is selected and studied intensively in this paper.The multi-dimensional upwind scheme and several widely used inviscid flux schemes (Roe, Van Leer and AUSMDV schemes) are compared based on the typical test case of hypersonic flow over a two-dimensional cylinder.The numerical results show that the multidimensional upwind method has a superior performance in terms of accuracy, robustness and convergence.Finally, the multidimensional upwind method is applied to predict the heat flux over a cylinder and a biconic configuration on the general hybrid grids.The numerical results of the heat flux are satisfactory, which demonstrates the capability for accurate aeroheating prediction over complex hypersonic vehicles on unstructured/hybrid grids.关键词
非结构网格/混合网格/气动热环境/多维迎风方法/无粘通量格式Key words
Unstructured grid/hybrid grid/aerothermodynamic environment/inviscid flux scheme/multi-dimensional upwind scheme分类
数理科学引用本文复制引用
万云博,马戎,王年华,张来平,桂业伟..多维迎风方法在非结构/混合网格热流计算中的应用研究[J].计算力学学报,2019,36(1):35-42,8.基金项目
国家重点研发计划 (2016YB0200701) （2016YB0200701）
国家自然科学基金 (11532016、91530325) 资助项目. （11532016、91530325）
