Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,*,Surface Meshing,*,ICEM CFD,中曲面网格划分,ICEM CFD,中曲面网格划分,ICEM CFD Tetra,三角网格到四边形网格的转化,ICEM CFD Quad,包括已处理过的拉伸到,3-D,的例子,ICEM CFD Hexa,Tetra,中曲面网格划分,和体积网格划分的设定相同,Points and curves on hard features,仍然需要材料点,但是它的位置不重要,Write surface,Tetra,划分曲面网格的优点,和,3-D,网格划分一样!,网格与曲面拓扑结构无关,能够容忍较差的几何外形,Access to features in Mesh Editor,CAD/STL,修复,Automatic feature detection,很多的网格编辑功能,用自然尺寸基于几何图形的细化,批处理,三角网格到四边形网格的转化,将三角曲面网格转化为四边形曲面网格,菜单:,Edit mesh,Change Type Tri-Quad,选项:,Quadrization,On:,All-Quad,Finer mesh results,Quadrization,Off:Quad dominant,ICEM CFD,中曲面网格划分,ICEM CFD Tetra,三角网格到四边形网格的转化,ICEM CFD Quad,包括已处理过的拉伸到,3-D,的例子,ICEM CFD Hexa,ICEM CFD Quad,具有四边形和,/,或三角形单元的曲面网格,ICEM CFD Quad,的用法,划分闭环的网格,闭环是封闭的一系列曲线,Optionally project mesh to surface,ICEM CFD Quad,创建闭环,Geometry,Loop,Create,Screen select,在所选曲线的基础上创建闭环,From surfaces,为所选择的一组曲面创建一个闭环,Select by family(f hotkey)is often useful,From each surface,ICEM CFD Quad,网格尺寸,Mesh size is based on sizes assigned to curves,Check visually before meshing,Curve,Opts,Tetra sizes,Quad Meshing to Existing Mesh,Mesh to existing mesh or combination of mesh and geometry,Example:2-D blower meshed in Hexa,housing meshed with Quad,Quad,为所选单元重新划分网格,要提高局部网格质量,我们可以为所选单元重新划分网格,Quad,搅拌器例子,简单的,2-D,搅拌器,Quad,中的网格,拉伸创建体网格,Project:,mixer,Tetin file:,extruded_mixer.tin,Quad,定义闭环,从已有曲线定义闭环,Additional curves in family,crvaid,Give more control of resulting mesh,Quad,定义闭环,Select:,Geometry Loop Create Screen Select,Select curves as shown for one passage,Enter,INLET,as family name,Quad,定义闭环,完成其它三个通道和中心的闭环定义,在族,INLET,中创建所有,闭环,Quad,分配尺寸,显示网格尺寸,Curve Opts Tetra Sizes,将网格尺寸分配到曲线,Curve Mesh,Params,Curves,对所有曲线设定尺寸为,5,Quad,网格划分,选择菜单:,Meshing Quad,选择:,QUAD_4,选择:,Mesh,拉伸网格,拉伸,5,层,每层为,5,个单元高度,设定拉伸方向:(,0,0,1,),Turn off,crvaid,Press v to select elem.,ICEM CFD,中曲面网格划分,ICEM CFD Tetra,三角网格到四边形网格的转化,ICEM CFD Quad,包括处理过的拉伸到,3-D,的例子,ICEM CFD Hexa,Hexa,中的曲面网格划分,处理过程和体积网格划分基本一样,Topology Menu,3-D Surface Mesh,例子:,一个,3-D,块被转换为六个曲面网格块,Hexa,中的曲面网格划分,网格划分完成之后,保存为,Unstr,Surface,Mix and Match Meshing,Use Hexa surface mesh and re-mesh selected elements using Quad,