CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

Incontinuity appears at the grid interface

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 21, 2004, 23:00
Default Incontinuity appears at the grid interface
  #1
Ryan
Guest
 
Posts: n/a
I use two interface to define a grid interface. The computation result shows that an obvious incontinuity happens for the values at the two side of the grid interface.

what is the cause for this problem? and how to solve it?

Regards.
  Reply With Quote

Old   April 22, 2004, 10:29
Default Re: Incontinuity appears at the grid interface
  #2
co2
Guest
 
Posts: n/a
i dont know for sure but may be wall and wall-shadow might help
  Reply With Quote

Old   April 22, 2004, 10:32
Default Re: Incontinuity appears at the grid interface
  #3
Ryan
Guest
 
Posts: n/a
wall and wall shadow? I am sorry I am not very clear about your meanning. Could you explain it? Thanks.
  Reply With Quote

Old   April 22, 2004, 11:23
Default Re: Incontinuity appears at the grid interface
  #4
co2
Guest
 
Posts: n/a
when you create the iterface use splitting tool in gambit --- that should give you a wall and wall shadow pair when you export your geometry in fluent.

for example split a volume using face and you will get a wall and wall shadow pair in fluent -- try it out and you will know
  Reply With Quote

Old   April 23, 2004, 04:13
Default Re: Incontinuity appears at the grid interface
  #5
emre
Guest
 
Posts: n/a
Hi,

If you have cells of very different sizes at the two sides of the interface, you should expect such discontinuites. Cell sizes may not be equal but cell volume ratios sould not be more than a few times.

Regards

emre
  Reply With Quote

Reply


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
Wind turbine simulation Saturn CFX 58 July 3, 2020 01:13
grid interface problems: ydzhang FLUENT 14 November 27, 2018 21:42
interface information from fem grid ztdep Main CFD Forum 0 January 14, 2011 21:13
Problem with BC on non-overlapping grid interface Ori Levin FLUENT 1 August 29, 2006 18:32
grid interface Dhandapani.s FLUENT 0 November 5, 2004 12:29


All times are GMT -4. The time now is 21:55.