How to mesh a flow straightener
Dear Foamers
Hi I need to simulate flow in a flow straightener which is shown in the picture below. To do this I used snappyHexMesh but I couldn't achieve a good results. I don't know what the problem is? As It is shown the model geometry is wrong in the pipe near the internal pipes. If you don't mind take a look at my case. I put it in the dropBox. https://www.dropbox.com/s/evdrcrr7ot...owStr.zip?dl=0 Best Wishes |
Some pictures
4 Attachment(s)
Here you can see both the geometry and meshed model.
|
My problem!
As you can see in the pictures, my problem is that the wall is not modelled correctly. The wall is not defined somewhere and in those places I have inlet patch as it is shown! Why?
I think there is a problem with snapping but I don't know How to deal with? |
Quote:
|
Exactly that is what I mentioned in your private message. It seems that you have no refinement at all. :)
|
Problem Solved!
Dear Marco and Tobi
Thanks for your replies. Yes, you are right! I didn't set the snappyhexmeshDict to make mesh refinement. To solve this problem, I first increased maxGlobalCells to 300000 and it started to do this!.After that I tried to separate my geometry main pipe and tubes and apply them in refinementSurfaces and refinementRegions. But now, I have more than 1000000 cells which makes my simulation very slow!! What should I do in this manner? |
All times are GMT -4. The time now is 12:50. |