There is an automatic option "add inflation" that should be used after having created the mesh. Try and run the first steps of the CFD simulation. Depending on the near boundary approach y+ should be eventually

Dear Franco,

First of all, I want to thank you for attention, I applied your suggestion and ı created inflation for perforated surface but mesh quality was too small. I run simulation using DES model (k-w SST based) w did not converge (criteria e-6) I think that arise from the mesh quality. Could you give me any suggestion for this situation?

Regards

Tahir

Hi,

try to increase your y+ by "measureing" the needed parameters for y+ and modifying the mesh with the help of CEL (CFX Expression Language) and updates. For this you can use macros and scripts (CFX Macros, Workbench journal scripts), that will allow you to automaticaly increase your mesh quality. For this you need to think about a mesh improvement strategy first (how you would do it manually) and later write a code, that does this for you.

Hi Cs. O Singer

Thank you for answer. Could you give me tutorial about cfx macro or mesh improvement strategy ?

Regards

Tahir

Yes, I could but the Ansys Help and Forums are also ok, if you know, what you want to do. Did you ever use CEL, Workbench parameters, journal schript and cfx macro? If not look for these keywords and start with something simple. You'll need CEL to export Parameters to the Workbench. You will need the Macros to automatically update your mesh and changing mesh parameters will come from algorithms, you will have to write your own algorithms, that use the workbench parameters. So first step, do the given tutorials related to workbench parameters, geometry (CAD) parameters, cfx parameters, parameter transfer and CEL.

Hi

I want to create a JScript macro for Ansys Meshing [Fluid Flow]. So, does anyone knows any meshing scripting guidline? I've already generated Workbench journal code to automatically carry out the process of fluid flow simulation with FLUENT. However, this journal coding in Workbench won't record the operations in geometry creation and mesh generation. So, I had to generate JScript code for the geometry and embedded into the journal code. So, if anybody have experience on this matter, please share it with us!

Thank you very much for your help