|
[Sponsors] |
August 16, 2014, 11:37 |
3D geometry run as 2D symmetry section?
|
#1 |
Senior Member
OJ
Join Date: Apr 2012
Location: United Kindom
Posts: 473
Rep Power: 20 |
Hi all,
I was curious about how much I can push the simplification in CFD modelling. Please have a look at following image: My goal is to find the optimum angle for a casting, which obviously is 3D, so that I have least pressure drop. So I may need to create a series of 3D models with different to get a trend and then when I know the minima of a curve of pressure drop versus , I have found my optimum value. Now, I was thinking, if i only create a 2D sketch of this model with different and obtain the optimum value, I can have some guidance about optimum angle for 3D. Agreed, the actual casting is cylingrical and I am representing it as 2D, and the physics is entirely different. But what I want only, is to get closer to optimum value through the series of 2D simulations. Suppose if I find that the optimum angle for 2D section is say 50 deg, I can then take series of angles close to 50 and run 3D simulations. It is not about exact result of 2D, but about zeroing in on the range of of angles I need to select for 3D simulations that I can focus on. It is far better to run with range of angles at 45, 47, 50, 53 and 55 deg instead of running with range of 30, 40, 50, 60, 70 deg, to get the accurate inflection point of the curve, to find optimum angle. Does this approach sound reasonable? Or am I missing something? Thanks! |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[ICEM] Blocking and Symmetry | BrolY | ANSYS Meshing & Geometry | 32 | August 24, 2012 03:13 |
[ICEM] Geometry ignored on symmetry plane | flyingk | ANSYS Meshing & Geometry | 2 | August 16, 2011 06:41 |
Working directory via command line | Luiz | CFX | 4 | March 6, 2011 20:02 |
[Gmsh] Problem meshing an imported geometry | Alicia | OpenFOAM Meshing & Mesh Conversion | 0 | March 30, 2010 04:53 |
LiftDrag utility from v12 to v141 | cfdphil | OpenFOAM Running, Solving & CFD | 2 | December 5, 2007 05:49 |