CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Programming & Development

calclulate div and grad just on specified cells -Local Time stepping

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

Reply
 
LinkBack Thread Tools Display Modes
Old   January 25, 2013, 07:32
Default calclulate div and grad just on specified cells -Local Time stepping
  #1
Senior Member
 
mahdi abdollahzadeh
Join Date: Mar 2011
Location: Covilha,Portugal
Posts: 149
Rep Power: 6
mm.abdollahzadeh is on a distinguished road
Dear All

I have implemented a local time stepping method that allows different time steps on different cells. In this method the unsteady results are valid.
But still the CPU time is the same as explicit time integration.
(The total number of loop needed is the same as explicit method with a adjustable time step ).
I want to eliminate the calculation of div and grad and the same member of fvc to decrease the CPU time. In fact when the grid is becoming so large this technique will show great efficiency.

I appreciate any guide and help.

Best
Mahdi
mm.abdollahzadeh is offline   Reply With Quote

Reply

Thread Tools
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Numerical schemes for grad and div Tobi OpenFOAM 6 March 11, 2013 22:24


All times are GMT -4. The time now is 04:41.