CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > General Forums > Main CFD Forum

About joint face in implicit method

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 11, 2010, 08:04
Unhappy About joint face in implicit method
  #1
New Member
 
Kun Qu
Join Date: Nov 2010
Posts: 5
Rep Power: 16
quaintchewster is on a distinguished road
Hi

I have a question when I implementing LUSGS in the multiblock framwork: how to handle the joint interface.

In my implementation, two levels of ghost cells out of a joint interface are applied. The flow states, W, in the ghost cells come from the neighbor blocks. When applying LUSGS scaning, the unknown, delta W, in the ghost cells are assumed as zero. But this decreases convergence, especially in case of the cells are of high aspect ratio, such as the wake cut of a C-grid of a airfoil. So, the resulted Cp contour lines are not smooth across the joint face.

Is there any easy method to augment the joint face when applying implicit method in a multiblock grid?

Quain
quaintchewster is offline   Reply With Quote

Reply

Tags
multiblock lusgs


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
Physical Reason for stability of Implicit Schemes? radhakrishnan Main CFD Forum 26 October 3, 2023 23:05
Semi Implicit method mnabi Main CFD Forum 0 August 21, 2009 17:53
determine face position Ralf Schmidt FLUENT 1 April 24, 2009 10:37
Implicit, fractional step method!! Frederic Felten Main CFD Forum 2 November 15, 2002 08:06
implicit method on unstructured grid Koo Main CFD Forum 5 July 29, 2001 02:43


All times are GMT -4. The time now is 21:27.