icepakmeshing网格划分.pptVIP

先进的网格技术 Fully automatic 完全自动化的网格生成 Local and global controls 局部和总体控制 Hexahedral or Tetrahedral meshes 六面体/四面体 先进的非结构化网格 先进的non-conformal mesh Two Hexahedral meshers Unstructured Cartesian Tetrahedral mesher 专门使用于 some complex geometry Must be used for ellipsoids, elliptical cylinders, or polygonal ducting All the methods are fully automated 可以进行不同复杂程度的网格划分 No parameters set Parameters defined on an object by object basis After meshing, Icepak checks the key quality measure.If there are cells with poor quality, Icepak will automatically display them. The Key measures are: Face Alignment for Hexahedral(面扭曲率) Aspect Ratio for Tetrahedral(长宽比) Two Hexahedral Meshers Unstructured Mesh will follow the geometry Cartesian 六面体单元组成的structured mesh 对非矩形几何模型划分Stair-step(阶梯状) approximations 台阶状近似几何 不正确的几何面积 远场网格不得不加密 网格数量多，精度差 Mesher Type Hexa-Unstructured, Hexa-Cartesian, Tetrahedral,mesher-hd(hex-dominant mesher六面体核心网格) 只有六面体核心网格才能对CAD objects进行网格划分 Max X, Max Y, Max Z Control the size of the largest cell allowable in the background mesh Object Params Individual parameters Max X, Y, Z By default this is 1/20th of the cabinet dimensions 1/10th of the domain size is sufficient for a coarse grid 不推荐使用小于1/20th domain size,可能生成大量不必要的网格 Init Height Recommended that you do not set this on large models as it can result in very large mesh counts Normal Mesher – Provides an acceptable mesh for most situations Coarse Mesher – Provides a coarse mesh Mesher default settings include: Min elements in fluid gap Minimum number of cells in between adjacent faces Maximum Size Ratio 可以控制网格尺寸的增长速度 The Growth ratio of elements away from surfaces can be controlled using this setting. Dx2 / Dx1 Max size Ratio setting Min elements on cylinder face Min elements on triangle face Additional Optional Flags No “O” grid Prevents “O” meshing on all objects Mesh assemblies separately 选择它， Icepak 将对assemblies创建non-conformal and put a finer mesh on the objects within the assem