GENERATING A SIMULATED FLUID FLOW OVER AN AIRCRAFT SURFACE USING ANISOTROPIC DIFFUSION
摘要
<p>A fluid-flow simulation over a computer-generated aircraft surface is generated using a diffusion technique. The surface is comprised of a surface mesh of polygons. A boundary-layer fluid property is obtained for a subset of the polygons of the surface mesh. A pressure-gradient vector is determined for a selected polygon, the selected polygon belonging to the surface mesh but not one of the subset of polygons. A maximum and minimum diffusion rate is determined along directions determined using a pressure gradient vector corresponding to the selected polygon. A diffusion-path vector is defined between a point in the selected polygon and a neighboring point in a neighboring polygon. An updated fluid property is determined for the selected polygon using a variable diffusion rate, the variable diffusion rate based on the minimum diffusion rate, maximum diffusion rate, and angular difference between the diffusion-path vector and the pressure-gradient vector.</p>
申请公布号
WO2012125497(A1)
申请公布日期
2012.09.20
申请号
WO2012US28606
申请日期
2012.03.09
申请人
DESKTOP AERONAUTICS, INC.;RODRIGUEZ, DAVID, L.;STURDZA, PETER