|
[Sponsors] |
August 27, 2011, 04:45 |
Cooper Meshing error
|
#1 |
Senior Member
Mohsin Mukhtar
Join Date: Mar 2010
Location: South Korea
Posts: 249
Rep Power: 17 |
Hello
Gambit gives the following error when I use cooper scheme for volume which has some face splits: Error: "Splitting of existing mesh on source face is not implemented yet, try using mesh split functionality on source face" Has anyone experinced this? and why is it caused and what might be solution to avoid this. Note: Source faces are correctly specified. Everything seems to be perfect for cooper mesh but this error is irritating... |
|
August 29, 2011, 01:43 |
|
#2 |
Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41 |
post pictures
__________________
In memory of my friend Hervé: CFD engineer & freerider |
|
August 29, 2011, 04:03 |
|
#3 |
Senior Member
Mohsin Mukhtar
Join Date: Mar 2010
Location: South Korea
Posts: 249
Rep Power: 17 |
Thank You Max
Cooper scheme is used and the upper face is plane but the lower face is splitted into segments. The upper face is already meshed and is projected downwards to the faces of splitted volumes (which are not meshed as per the requirement of cooper). Why is this error coming? when i split the upper face like the lower face then the error disapears but i dont want to split the upper face because then i have to split all the upper geomtery for meshing. Assistance required. Thanks |
|
August 29, 2011, 04:10 |
|
#4 | |
Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41 |
Quote:
The upper surface is "free", and the lower have less freedom since you enforce the mesh to follow some splits. You cannot enforce cooper to project a "free" surface onto a "resticted" surface. you understand what I mean?
__________________
In memory of my friend Hervé: CFD engineer & freerider |
||
August 29, 2011, 04:20 |
|
#5 |
Senior Member
Mohsin Mukhtar
Join Date: Mar 2010
Location: South Korea
Posts: 249
Rep Power: 17 |
yes i understand but if u make 2 geomteries and split the one of them into 2 then if u apply cooper mesh (in the same manner) then it works. But in this case, it isn't. I mean even if the volumes are split into different volumes, still cooper scheme works in some cases but in this case it is not working. A little confusing...
|
|
August 29, 2011, 04:24 |
|
#6 |
Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41 |
delete the surface mesh on the upper surface (or the volume up to your volume from interest)
And remesh
__________________
In memory of my friend Hervé: CFD engineer & freerider |
|
August 29, 2011, 04:37 |
|
#7 |
Senior Member
Mohsin Mukhtar
Join Date: Mar 2010
Location: South Korea
Posts: 249
Rep Power: 17 |
Is it possible to split the upper face's mesh like the lower surface? I tried face and edge mesh splits but was unsuccessful. Also, can virtual edges, faces or volume play a role in this issue? I mean for meshing from upper face to lower face can u think of any possibility?
Thanks |
|
August 29, 2011, 09:56 |
|
#8 |
Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41 |
You have a problem with volume 93. (2 superposed surfaces)
Go and connect all surfaces. Then try to mesh. But I don't understand why you are trying to mesh all your domain with hexa, except impellers with coarse tetra. I assume you will have less problem, if you merge all your volumes, and you apply Size Functions on your impellers. Then mesh your volume with tetra-hexcore.
__________________
In memory of my friend Hervé: CFD engineer & freerider |
|
August 29, 2011, 20:15 |
|
#9 |
Senior Member
Mohsin Mukhtar
Join Date: Mar 2010
Location: South Korea
Posts: 249
Rep Power: 17 |
I am sorry I didn't get your point
Volume 93 2 superposed surfaces? are there any extra faces? how is it superposed? Secondly, u mean I should merge all the volumes in the domain and apply size function at the specific impeller regions? I was meshing it with hex cooper in order to get a good quality mesh. Could u send me a rough sample of jou. file of my geometry? I'll be highly grateful to u.. Last edited by Mohsin; August 29, 2011 at 21:19. |
|
August 30, 2011, 01:18 |
|
#10 |
Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41 |
What is the goal of your simulation?
__________________
In memory of my friend Hervé: CFD engineer & freerider |
|
August 30, 2011, 01:21 |
|
#11 |
Senior Member
Mohsin Mukhtar
Join Date: Mar 2010
Location: South Korea
Posts: 249
Rep Power: 17 |
The goal is to get the flow behavior inside the main cylindrical chamber. Droplet evaporation, collection of droplets at the outlet and temperature at the wall etc.
Inside the chamber a highly swirl flow occurs because of the impellers. |
|
August 30, 2011, 01:28 |
|
#12 |
Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41 |
Then a "fine" mesh on impellers would ba appreciated, and you can even aplly a BL
In you case you have very coarse mesh around impeller Sans titre.jpg
__________________
In memory of my friend Hervé: CFD engineer & freerider |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Building OpenFOAM1.7.0 from source | ata | OpenFOAM Installation | 46 | March 6, 2022 13:21 |
Compile calcMassFlowC | aurore | OpenFOAM Programming & Development | 13 | March 23, 2018 07:43 |
UDF: DEFINE_CG_MOTION for vertical jump motion of an electrode! | alban | Fluent UDF and Scheme Programming | 2 | June 8, 2010 18:54 |
How to get the max value of the whole field | waynezw0618 | OpenFOAM Running, Solving & CFD | 4 | June 17, 2008 05:07 |
Compiling problems with hello worldC | fw407 | OpenFOAM Installation | 21 | January 6, 2008 17:38 |