Hypermesh和GAMBIT在CFD应用中的优势对比研究

Contrast of the Application of Hypermesh and GAMBIT to Computational Fluid Dynamics(CFD)

通过对比研究两款面向CFD的专业前处理软件,比较它们的优势和适用领域,可以为计算流体动力学分析选择合适的前处理软件,提高研究和计算的效率。笔者以网格划分软件GAMBIT和Altair公司的Hypermesh为研究对象,通过风洞汽车模型的对比研究证明了Hypermesh在CFD解决方案中的可行性。再从风洞客机模型说明Hypermesh具备良好CAD接口,高网格质量,和自动生成从入口到出口流体网格的优良特性,是复杂几何模型CFD问题的首选方案。从内循环管仿真试验得出GAMBIT支持更多种类边界条件,是复杂边界条件下的CFD问题优选方案的结论。

Through contrastive research on the advantages and application fields of the two kinds of professional pre-processing software for CFD（Computational Fluid Dynamics）,the appropriate pre-processing software can be selected to improve the efficiency of research and calculation for computational fluid dynamics analysis.The feasibility of solving problems in CFD using Hypermesh is proved by contrastive study about the wind tunnel model of automobile by taking the meshing software GAMBIT and Hypermesh produced by Altair Corporation as the research objects.Some excellent characteristics such as good CAD interface,high mesh quality and the automatic generation of fluid mesh from the entrance to the exit are illustrated by the wind tunnel model of plane,and Hypermesh is the preferred program of complex geometric models for CFD problems.The conclusion that GAMBIT supports more types of boundary conditions and is the preferred program of CFD problems of complex boundary conditions is given by an inner-circulation tube experiment.