Lift and Drag Prediction Using Automatic Hexahedra Grid Generation Method
Lift and Drag Prediction Using Automatic Hexahedra Grid Generation Method
复制标题
使用自动六面体网格生成方法进行升力和阻力预测
DOI：
10.2514/6.2009-1365
复制
发表时间：
2009
期刊：
影响因子：
--
通讯作者：
P. Lahur
中科院分区：
文献类型：
--
作者：
A. Hashimoto;K. Murakami;T. Aoyama;P. Lahur
为了缩短模拟流动的时间，我们开发了一个自动快速网格生成器，hexgrid，它可以生成笛卡尔/棱镜混合网格。由于棱镜单元也是六面体，因此生成的网格以六面体为主。本研究的目的是扩展该方法，使其能够产生具有足够质量的网格用于Navier-Stokes模拟。利用hexgrid和非结构网格流动求解器JTAS计算了ONERA-M6机翼和DLR-F6翼身结构周围的跨音速流动。用网格计算的升力和阻力与其他计算结果进行了比较。该协议是相当好的，这表明hexgridrid成为一个强大的工具，以加快CFD过程。
To shorten the time to simulate flow, we develop an automatic and fast grid generator, HexaGrid, that produces Cartesian/prism hybrid grids. Since the prism cells are also hexahedra, the generated grid is hexahedron-dominant. The objective of this study is to extend the method so that it can produce grids with sufficient quality for Navier-Stokes simulation. The transonic flows around ONERA-M6 wing and DLR-F6 wing-body configuration are computed using HexaGrid and an unstructured-grid flow solver, JTAS. The lift and drag computed with the grid are compared with others’ results. The agreement is reasonably good, which shows that HexaGrid becomes a powerful tool to accelerate a CFD process.