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The joint grid system, which consists of the developed collar grid, the virtual grid anti other grlas, was used in the embedding technique to solve the problem of finding interpolating cells of the internal and external boundary points near the joint regions. With different boundary plane generated along different fixed surface, the collar grid obtained using hyperbolic partial equations can ensure to generate high-quality grids and to provide real interpolating cells for the boundary points in the blanking regions. The virtual grid was used to convert solid wall boundary conditions into an interface condition, however, no fluid flow computations were conducted within the virtual grid. The computational result of body-strake-wing shows that the current developed embedding technique with joint grid system can effectively treat the geometry and can more accurately predict the flow over complexcon-figuration with intersecting surfaces. 相似文献
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VIRTUAL GRID AND NAVIER-STOKES COMPUTATION FOR CONTROL-SURFACE 总被引:1,自引:0,他引:1
Introduction The grid generation is very important and es-sential for viscous flows over the wing with controlsurface.Obayashi et al.[1] adopted an integrativegrid to solve such problems,and forconvenience ofgrid generation,they introduced one small gap be-tween the cut of the wing and the end of the flap,and even now,there existed the deformation of thegrid which brought some errors to the calculatingresults. Therefore,a more reasonable grid strate-gy,such as a chimera overset grid,is req… 相似文献
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