1. Innovation Intelligence ® Workshop – Riser VIV

2. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. 学习内容 实用流固耦合的设置方法 ALE 网格运动的设置 模型文件： flexibleRing.acs OD= 0.15 m 顶部和底部在 6 个自由度都收到约束 （零位移，零转动） ID= 0.125 m 杨氏模量 = 2.0 x 10 9 Pa 密度 = 1500 kg/m 3 泊松比 = 0.3 6 m

3. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 1 ：导入几何模型  File > New ，新建模型文件 riser.acs  File > Import  导入 Parasolid 几何文件 Riser_CFD.x_t

4. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 2 ：设置求解器基本参数  Global > Problem Description  Global > Output > Nodal Output  Global > Auto Solution Strategy

5. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 3 ：创建监测点  单击 Data Tree Manager 中的 BAS  右键单击 Global > Output > Time History Output ，选择 New  重命名为 Monitor Points ，双击 Monitor Points Read monitor.dat

6. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 4 ：设置初始条件  Global > Nodal Initial Condition

7. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 5 ：模型整理  右键单击 Model > Volumes ，选择 New ，重命名为 Fluid  右键单击 Fluid ，选择 Add to ，在图形区选择外流场区域，剩下的是 pipe  将 default 重命名为 Solid

8. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 6 ：设置网格参数  单击 Data Tree Manager 中的 MSH  Global > Global Mesh Attributes  右键单击 Zone Mesh Attributes ，选择 New ，重命名为 Box_Large

9. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 6 ：设置网格参数 ( 续 )  右键单击 Zone Mesh Attributes ，选择 New ，重命名为 Cylinder  Model > Volumes > Solid > Volume Mesh Attributes

10. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 6 ：设置网格参数 ( 续 )  Model > Surfaces > Pipe > Surface Mesh Attributes

11. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 7 ：生成网格及网格变换  Tools > Generate Mesh  MeshOp > Transform Coordinates

12. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 8 ：创建 Multiplier Function  单击 Data Tree Manager 中的 PB*  新建一个 Multiplier Function 这个 Multiplier Function 将被应用到 Flexible Body 的定义中，它的作用相 当于一个 damper ，让流体对固体慢慢 加力，使计算更稳定。

13. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 9 ：定义 Flexible Body  单击 Data Tree Manager 中的 FSI  新建一个 Flexible Body ，重命名为 Flexible Riser

14. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 10 ：设置流体属性  单击 Data Tree Manager 中的 BAS  Model > Volumes > Fluid > Element Set

15. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 11 ：设置边界条件  右键单击 Model > Surfaces ，选择 Surface Manager  设置各个 Surface 上的 Simple BC Type

16. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 11 ：设置边界条件 ( 续 )  Model > Surfaces > Pipe > Simple Boundary Condition  Model > Surfaces > Side_MaxZ > Simple Boundary Condition  Model > Surfaces > Side_MinZ > Simple Boundary Condition

17. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 11 ：设置边界条件 ( 续 )  Model > Surfaces > Inlet > Simple Boundary Condition

18. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 12 ：设置移动节点  单击 Data Tree Manager 中的 BAS  右键单击 Nodes ，选择 New ，重命名为 8Layers  右键单击 8Layers ，选择 Define

19. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 13 ：导入模态文件  Tools > Eigenmode Manager  模态文件： Riser_PFSI.op2

20. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 13 ：导入模态文件 ( 续 )

21. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 13 ：导入模态文件 ( 续 )

22. Copyright © 2015 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved. Step 14 ：保存并提交计算  Save  Tools > AcuSolve