ANSYS ICEM CFD Tutorial Manual示例文件和网格文件

【实例截图】

【核心代码】

目录 2D 管接头的六面体网格生成 ..................................... ...................................................... 1 准备 ................................................. …………………………………………………………………………………………………………………………………………………………………… ...................................................... 2 阻塞策略 ..................................... …………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………………………… 2 第 1 步：阻止几何体 ..................................... …………………………………………………………………………………………………………………………………………………………………… ...................................... 3 Step 2: Associate Entities to the Geometry ............................................................................................. 10 Step 3: Move the Vertices ...................................................................................................................... 13 Step 4: Apply Mesh Parameters ............................................................................................................. 17 Step 5: Generate the Initial Mesh ........................................................................................................... 19 Step 6: Adjust the Edge Distribution and Refine the Mesh ...................................................................... 20 Step 7: Match the Edges ........................................................................................................................ 25 Step 8:Verify and Save the Mesh and Blocking ....................................................................................... 29 Hexa Mesh Generation for a 2D Car .......................................................................................................... 31 Start a New Project and Initiate Replay Control ...................................................................................... 31 Create and Split the Blocking to Resemble the Geometry ...................................................................... 34 Associate and Fit the Blocking to the Geometry ..................................................................................... 42 Align the Vertices .................................................................................................................................. 45 Set Mesh Parameters and Generate the Initial Mesh ............................................................................... 48 Create an O-grid ................................................................................................................................... 50 Refine the Mesh using Edge Parameters ................................................................................................ 53 Save the Replay File and Use it for Design Iteration ................................................................................ 57 Create Output Data for a Solver ............................................................................................................. 60 Hexa Mesh Generation for a 3D Pipe Junction ......................................................................................... 63 Preparation .......................................................................................................................................... 64 Step 1: Creating Parts ............................................................................................................................ 64 Step 2: Creating a Material Point ............................................................................................................ 67 Step 3: Blocking the Geometry .............................................................................................................. 68 Step 4: Projecting the Edges to the Curves ............................................................................................. 71 Step 5: Moving the Vertices ................................................................................................................... 73 Step 6: Generating the Mesh ................................................................................................................. 75 Step 7: Checking the Mesh Quality ........................................................................................................ 79 Step 8: Creating an O-Grid in the Blocking ............................................................................................. 80 Step 9:Verifying and Saving the Mesh ................................................................................................... 86 Hexa Mesh Generation for a Sphere Cube Geometry ............................................................................... 89 Preparation .......................................................................................................................................... 90 Step 1: Creating Parts ............................................................................................................................ 90 Step 2: Creating a Material Point ............................................................................................................ 94 Step 3: Blocking the Geometry .............................................................................................................. 95 Step 4: Creating Composite Curves ........................................................................................................ 95 Step 5: Projecting Edges to the Curves ................................................................................................... 97 Step 6: Moving the Vertices ................................................................................................................... 98 Step 7: Creating the O-Grid ................................................................................................................... 99 Step 8: Generating the Mesh ............................................................................................................... 103 Step 9:Viewing the Scan Planes ........................................................................................................... 105 Step 10:Verifying and Saving the Mesh ................................................................................................ 107 Hexa Mesh Generation for a Pipe with Embedded Blade ....................................................................... 109 Starting the Project ............................................................................................................................. 110 Creating Parts in the Mesh Editor ........................................................................................................ 110 Initial Blocking and Associations ......................................................................................................... 114 Splitting and Collapsing Blocks around the Blade ................................................................................ 119 Fit the Blocking to the Blade geometry ................................................................................................ 123 iii ANSYS ICEM CFD 14.5 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information of ANSYS, Inc. and its subsidiaries and affiliates. Generating the O-Grid ........................................................................................................................ 126 Defining Surface Parameters for the Mesh ........................................................................................... 128 Defining Edge Parameters to Adjust the Mesh ..................................................................................... 130 Checking and Improving Mesh Quality ................................................................................................ 133 Saving ................................................................................................................................................ 136 Hexa Mesh Generation for an Elbow Part ............................................................................................... 137 Preparation ........................................................................................................................................ 138 Step 1: Creating a Material Point .......................................................................................................... 140 Step 2: Blocking the Geometry ............................................................................................................ 142 Step 3: Fitting the Blocking to the Geometry ........................................................................................ 144 Step 4: Creating the First O-Grid .......................................................................................................... 148 Step 5: Adjust the O-Grid Edge Length to Improve Quality ................................................................... 152 Step 6: Generate the Pre-Mesh ............................................................................................................ 158 Step 7: Creating the Second O-Grid ..................................................................................................... 160 Step 8: Generating the Mesh ............................................................................................................... 163 Step 9: Saving the Project .................................................................................................................... 170 Bottom Up Hexa Mesh Strategy for a Grid Fin ........................................................................................ 175 Preparation ........................................................................................................................................ 177 Initiate 2D Blocking ............................................................................................................................. 177 Associate Initial Blocking to a Minor Geometry .................................................................................... 179 Create an O-grid and Place Vertices ..................................................................................................... 184 Rotate and Copy to Resolve Other Geometries .................................................................................... 187 Complete the 2D Grid by Vertex Placement ......................................................................................... 189 Extrude a 2D Planar Grid to Create 3D Blocking ................................................................................... 193 Refine the Blocking with Further Splits and Associations ...................................................................... 195 Resolve Zero Thickness Walls ............................................................................................................... 203 Define Periodicity ............................................................................................................................... 207 Generate the Mesh ............................................................................................................................. 209 Check the Mesh Quality ...................................................................................................................... 211 Reduce the Blocks in a Multiblock Mesh .............................................................................................. 212 Save the Mesh .................................................................................................................................... 215 Tetra/Prism Mesh in a Fin Configuration ................................................................................................ 217 Prepare the Geometry ......................................................................................................................... 217 Create Surface and Material Parts ........................................................................................................ 219 Setup Mesh Parameters ...................................................................................................................... 221 Generate the Tetra/Prism Mesh ........................................................................................................... 225 Check and Smooth the Tetra/Prism Mesh ............................................................................................. 227 Build the Hexa-Core mesh ................................................................................................................... 229 Save and Exit ...................................................................................................................................... 231 Tetra Mesh in a Piston/Valve Assembly .................................................................................................. 233 Starting the Project ............................................................................................................................. 234 Defining the Parts ............................................................................................................................... 235 Setting Mesh Parameters .................................................................................................................... 238 Generating the Mesh .......................................................................................................................... 241 Checking the mesh and Cleaning up ................................................................................................... 244 Tetra/Prism Mesh Generation for a Helicopter ....................................................................................... 247 Preparation ........................................................................................................................................ 248 Step 1: Preparing the Geometry ........................................................................................................... 248 Step 2: Creating a Material Point .......................................................................................................... 250 Step 3: Generating the Octree Mesh .................................................................................................... 252 Step 4: Generating the Delaunay Mesh ................................................................................................ 259 Step 5: Smoothing the Mesh ............................................................................................................... 262 ANSYS ICEM CFD 14.5 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential iniv formation of ANSYS, Inc. and its subsidiaries and affiliates. Tutorials Step 6: Saving the Project .................................................................................................................... 263 Tetra/Prism Mesh Generation for an Aorta ............................................................................................. 265 Preparation ........................................................................................................................................ 266 Step 1: Creating Parts .......................................................................................................................... 267 Step 2: Creating the Material Point ....................................................................................................... 270 Step 3: Generating the Octree Mesh .................................................................................................... 271 Step 4: Generating the Delaunay Mesh ................................................................................................ 279 Step 5: Saving the Project .................................................................................................................... 283 Further Setup ..................................................................................................................................... 286 Merged Tetra-Hexa Mesh in a Hybrid Tube ............................................................................................. 289 Starting the Project ............................................................................................................................. 290 Setting the Mesh Parameters .............................................................................................................. 290 Generating the Tetra Mesh in CYL1 ...................................................................................................... 291 Generating the Tetra Mesh in CYL2 ...................................................................................................... 293 Merging the Tetra Mesh between CYL1 and CYL2 ................................................................................ 295 Generating the Hexa Mesh in CYL3 ...................................................................................................... 296 Merging the Tetra Mesh with Hexa Mesh at Interface2 ......................................................................... 301 Cleaning up and Saving the Project ..................................................................................................... 302 Multizone Mesh in HVAC Square-to-circle Transistion Duct ................................................................... 305 准备几何体 ..................................... ………………………………………………………………………………………………………………………………………… ...................... 305 设置全局和零件参数 ..................................... ………………………………………………………………………………………………………………………………………… ...... 306 创建自动表面阻塞 ..................................... ………………………………………………………………………………………………………………………………………… ...... 308 将表面分块转换为 3D 分块 ..................................... ...................................................... 310 检查网格、保存和退出 ..................................... ………………………………………………………………………………………………………………………………………… ... 313