CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > FLOW-3D

wave problem

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

Reply
 
LinkBack Thread Tools Display Modes
Old   February 3, 2010, 04:53
Default wave problem
  #1
New Member
 
cloud lin
Join Date: Dec 2009
Posts: 3
Rep Power: 7
nchu286 is on a distinguished road
i tried to produce a very simple wave (input wave amplitude,period,and fluid height)and wanted to see the free surface elevation at the most front-end
.I run 100s and the first 40s the elevation is a regular wave but after it ,it suddenly climb it high and became irregular .
So did anyone know where is the problem.Thx
Ps:the fluid is one fluid ,linear
nchu286 is offline   Reply With Quote

Old   February 3, 2010, 09:41
Default
  #2
Member
 
Armen A. Ghirghidov
Join Date: Mar 2009
Posts: 50
Rep Power: 8
Ghirghidov is on a distinguished road
did you use lagrangian VOF method?
Ghirghidov is offline   Reply With Quote

Old   February 10, 2010, 07:00
Default
  #3
New Member
 
cloud lin
Join Date: Dec 2009
Posts: 3
Rep Power: 7
nchu286 is on a distinguished road
Quote:
Originally Posted by Ghirghidov View Post
did you use lagrangian VOF method?
didn't flow-3d always use the method??
nchu286 is offline   Reply With Quote

Old   February 10, 2010, 10:37
Default
  #4
Senior Member
 
michael barkhudarov
Join Date: Mar 2009
Posts: 331
Rep Power: 9
MuxaB is on a distinguished road
Could it be because a reflected wave came back to the wave boundary? What do you have as BC on other mesh boundaries?
MuxaB 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
Help! Compiled UDF problem 4 Wave tank tutorial Shane FLUENT 1 September 3, 2010 02:32
how i can approch the problem about shock wave chandrakanth Main CFD Forum 0 December 6, 2008 03:27
Problem in Tutorial problem of fluent Phanindra FLUENT 5 April 17, 2007 09:57
Assistance with one-way wave equation Frank Main CFD Forum 5 March 14, 2007 11:56
problem in solving "wave generation" problem san FLUENT 2 April 3, 2006 23:37


All times are GMT -4. The time now is 14:54.