CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

mesh squeezing

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 27, 2009, 07:47
Default mesh squeezing
  #1
New Member
 
andrianomena
Join Date: Mar 2009
Location: madagascar
Posts: 23
Rep Power: 17
sambatra is on a distinguished road
Hi there,
I'm dealing with combustion modeling and it involves mesh motion manipulating.it is 2D model,for the field we have inlet,outlet,left and right symmetry plane.when the trash is burnt, it produces ashes so the volume is reduced according to the equation(mesh is squeezed):
deltay = deltay*G G is a factor to be calculated in the code,deltay is the hight of the cell.the displacement is then d = delta(1-G) which is in terms of the temperature in a zone.
for the pointDisplacement file we have:
dimension (meter)
internal field non uniform d
boundary(in fact I changed the outlet patch into slip one)
for the inlet I set the displacement equal to zero
for the solver I set:
displacementComponentLaplace y;
diffusivity uniform;
Would you be so kind as to tell me whether I did well?
You see, I already tried a simple mesh squeezing with a simple case with a uniform displacement and it gave an error message like
solver table empty............!!!!probably the displacement I put was so big!! I dont know
Thanks,
Regards,
sambatra is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Dynamic Mesh Problem. Tom Clark FLUENT 10 June 21, 2021 05:27
virtual geometry richard FLUENT 4 January 7, 2009 06:16
basic of mesh refinement arya CFX 4 June 19, 2007 13:21
How to do Geometry from 3D mesh in ICEM San24 Main CFD Forum 4 August 8, 2005 03:49
General questions on grid-based computing Adrin Gharakhani Main CFD Forum 21 June 5, 2000 14:47


All times are GMT -4. The time now is 22:22.