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

MAC method

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   February 27, 2003, 16:30
Default MAC method
  #1
Farid Babadi
Guest
 
Posts: n/a
I need a free source code of MAC Method for modeling free surface wavy falling flow. Please e-mail me the source code or the link.

Thanks a lot Farid
  Reply With Quote

Old   March 2, 2003, 18:26
Default Re: MAC method
  #2
Danny Tandra
Guest
 
Posts: n/a
CFDLIB http://gnarly.lanl.gov/secondlevel/codes/cfdlib.htm

Danny Tandra
  Reply With Quote

Old   March 4, 2003, 04:03
Default Re: MAC method
  #3
kenn
Guest
 
Posts: n/a
MAC was excellent, but outdated. Volume of Fluid is better. and Arbitrary Lagarangian Euler could better.

all these above three teckniques are explicit

if you really are a serious researcher, I'll recommend you to use Level Set Method, which is implicit.
  Reply With Quote

Old   March 4, 2003, 05:38
Default references
  #4
kenn
Guest
 
Posts: n/a
1. volume of fluid JCP 39, 201-225(1981), by C.W.Hirt

2. ALE JCP 14, 227-253(1974), by C.W.Hirt

3. Level Set "Level Set Methods and fast Marching Methods" by J.A.Sethian, 2nd edition cambridge 1999

MAC was explained together with first appearance of projection method in a report by Harlow.

  Reply With Quote

Old   March 4, 2003, 10:16
Default Re: MAC method
  #5
Jim Park
Guest
 
Posts: n/a
"all these above three teckniques are explicit"

Actually all three are semi-implicit. By this I mean that, for each time step, the momentum equations are advanced in time explicitly. Then the pressure (continuity) eqaution is time advanced implicitly. Finally the advanced-time pressure is used for the final continuity-satisfying corrections to the velocities.

So you wind up iterating only the pressure equation. But the allowable time step is limited by the explicit treatment of momentum at the beginning of each cycle.

It's often a useful trade-out if you really want to see a transient solution. And that's where Harlow et al started.
  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
MAC method solve for pressure at boundry Ron Main CFD Forum 2 January 28, 2006 03:14
MAC method shvia Main CFD Forum 1 September 20, 2004 10:07
Pressure boundary conditions in MAC method Ravi Main CFD Forum 4 January 21, 2000 14:50
use of MAC method to solve sloshing problem. S.R.SAHI Main CFD Forum 1 April 15, 1999 23:28
Marker And Cell method (MAC) Albert Badal Main CFD Forum 0 February 27, 1999 20:53


All times are GMT -4. The time now is 23:38.