Drag Prediction on NASA CRM Using Automatic Hexahedra Grid Generation
Drag Prediction on NASA CRM Using Automatic Hexahedra Grid Generation
复制标题
使用自动六面体网格生成对 NASA CRM 进行阻力预测
DOI：
10.2514/6.2010-1417
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
P. Lahur
中科院分区：
文献类型：
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作者：
A. Hashimoto;K. Murakami;T. Aoyama;Kazuomi Yamamoto;M. Murayama;P. Lahur
To shorten the time to simulate flow, we develop an automatic and fast grid generator, HexaGrid, that produces Cartesian/prism hybrid grids. The objective of this study is to apply it for drag prediction on NASA Common Research Model (CRM). First, we compare the generated grid with the DPW gridding guideline and discuss about the capability and limitation of HexaGrid. Then, we validate computational results with HexaGrid, comparing with other solvers and grid generators. HexaGrid results agree well with the other results, where the difference of predicted drag is less than 5 counts except for the stall angle. Additionally, we compared the separated flows at attack angle of 4°. The separation lines and Cp distribution are largely affected by grid topologies.
