基于混合网格的JSM模型失速特性数值模拟研究  

Numerical Simulation of JSM Model′s Stall Characteristics Based on Hybrid Grids

作　　者：姚冰 淮洋 梁益华[1] YAO Bing;HUAI Yang;LIANG Yi-hua(Xi′an Aeronautics Computing Technique Research Institute,AVIC,Xi′an 710068,China)

机构地区：[1]航空工业西安航空计算技术研究所,陕西西安710068

出　　处：《航空计算技术》2020年第2期12-15,共4页Aeronautical Computing Technique

基　　金：装备预研领域基金项目资助(61402060503)。

摘　　要：网格生成是CFD数值模拟过程中非常重要的一个环节,网格品质的好坏在一定程度上可以左右计算结果的准确性。使用非结构网格求解器WiseCFD-UG软件对NASA第三届高升力会议JSM模型进行了数值模拟研究。利用自研非结构网格与HiliftPW-III会议组委会提供的网格做了对比计算,并且开展了网格收敛性方面的计算研究。研究发现,网格密度对JSM模型升力系数的计算结果有很大影响,使用经过加密后的网格得到的计算结果与实验值取得了良好的一致性,验证了WiseCFD-UG软件在模拟高升力构型低速失速特性方面的能力。Grid generation is one of the most important steps in CFD numerical simulation.The quality of grids can somehow determine the accuracy of CFD simulation results.The CFD unstructured solver WiseCFD-UG is used in the simulation of JAXA high-lift configuration Standard Model(JSM).The C2 grid provided by the HiliftPW committee is used in the simulation along with several other in-house mixed unstructured grids.Results obtained from RANS analysis are compared with experimental data.The research indicates that the grid density has a great influence on the accuracy of the simulation results.Results from the finest grids are in good agreement with the experimental data.The ability of WiseCFD-UG in simulation of JSM model′s stall characteristics is verified.

关 键 词：高升力会议 JSM模型 非结构网格 失速特性 

分 类 号：V211[航空宇航科学与技术—航空宇航推进理论与工程]