B1-ICEM绘制面网格

2/23/2007©2006ANSYS,Inc.Allrightsreserved.ANSYSICEMCFDV11Inventory#0023821-1面网格-Workshop1F6模型2/23/2007©2006ANSYS,Inc.Allrightsreserved.Inventory#0023821-2TrainingManualANSYSv11.0ANSYSICEMCFDV11网格设置•打开project:wingbody.prj–读入F6_complete.tin需要设置网格方法类型和尺寸•首先设置全局变量–Mesh-GlobalMeshSetupGlobalMeshsize•设置Maxelementsizeto1000•模型允许的最大网格尺寸•设置如图的MaxSizebyparts–MeshPartMeshSetup2/23/2007©2006ANSYS,Inc.Allrightsreserved.Inventory#0023821-3TrainingManualANSYSv11.0ANSYSICEMCFDV11设置网格参数•设置默认的网格类型和方法•MeshGlobalMeshSizeShellMeshParameters–网格类型:AllTri–网格方法:PatchDependent–设置ShellMeshingParametersSectionPatchDependent–设置Ignoresize=0.05•强制沿着机翼方向网格映射–选择面网格设置–选择4个前缘和2个尾缘面–改变网格方法Autoblock–Apply2/23/2007©2006ANSYS,Inc.Allrightsreserved.Inventory#0023821-4TrainingManualANSYSv11.0ANSYSICEMCFDV11设置曲线参数•在前缘线上定义更多的网格节点•复选Parts项•复选Geometry/Curves•鼠标右键Curve，选择CurveNodeSpacing•放大显示机翼的和机身接合部–选择曲线网格设置•改变Method为Dynamic•选择Numberofnodes•定位鼠标在节点数目上•左键增加节点数目到11•改变Bunchinglaw为Geometric1•选择Bunchingratio鼠标定位在相同曲线上–箭头方向是spacing1到spacing2的方向–想向着2的方向偏移(箭头方向)•右键选择直到Geometric2出现•左键增加到1.22/23/2007©2006ANSYS,Inc.Allrightsreserved.Inventory#0023821-5TrainingManualANSYSv11.0ANSYSICEMCFDV11设置曲线参数•将节点分布拷贝到平行的边上–仍然在曲线设置,改变Method为CopyParameters–选择刚才编辑的边–选择机翼前缘的5个线–Apply•有些曲线分布有相反的分布方向–这个例子里，显示了底下的2个曲线–返回到Dynamicmethod•右键把rationumber调到1.0•右键选择改变方向(Geometric2to1)•左键增加到1.22/23/2007©2006ANSYS,Inc.Allrightsreserved.Inventory#0023821-6TrainingManualANSYSv11.0ANSYSICEMCFDV11设置曲线参数•使得平行线上的网格分布一致–仍然在Dynamic方式选择Numberofnodes改变曲线节点分布(右键减少)Nodespacingturnedoffforclarity•细化机身鼻部的网格–改变曲线网格设置方法General–选择机身最前端的曲线–中键确认–改变最大尺寸5–这样节点数目为32+6-1(sharednode)=37nodes–和平行方法一样–更好的保证映射网格–增加机翼端部的网格节点，使得更好的贴近几何2/23/2007©2006ANSYS,Inc.Allrightsreserved.Inventory#0023821-7TrainingManualANSYSv11.0ANSYSICEMCFDV11创建表面网格•MeshComputeMeshSurfaceMesh–SelectGeometryAll–Compute•注意到机身前端的网格质量问题–关掉FARFIELDpart2/23/2007©2006ANSYS,Inc.Allrightsreserved.Inventory#0023821-8TrainingManualANSYSv11.0ANSYSICEMCFDV11删除网格•删除坏网格–关掉FARFIELD,INLET,OUTLET•能够选择其他网格–选择EditMeshDeleteElements选择面上的其中一个网格–网格工具栏中选择Select…uptoacurve或者快捷键“r”选中2个面上的所有网格•填充选择曲线组成的封闭区域2/23/2007©2006ANSYS,Inc.Allrightsreserved.Inventory#0023821-9TrainingManualANSYSv11.0ANSYSICEMCFDV11重新划分网格•重新划分机身网格–回到MeshGlobalMeshSetupShellMeshingParameters–打开GeneralRespectLineElements•确认新网格和相邻面一致–改变RepairTryharderlevel3•运行robustoctree(patchindependent)方法•Furtherdownmenu•Apply–选择MeshComputeMeshSurfaceMeshOnly•改变Input为FromScreen•选择Entities,2个表面–确认曲面在模型树里面打开•Compute2/23/2007©2006ANSYS,Inc.Allrightsreserved.Inventory#0023821-10TrainingManualANSYSv11.0ANSYSICEMCFDV11重新划分网格–观察修改过的网格–注意映射的网格沿着机翼前缘边界对齐•保存Project!