CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Mesh movement accumulation error???

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 10, 2011, 12:12
Default Mesh movement accumulation error???
  #1
Senior Member
 
lakeat's Avatar
 
Daniel WEI (老魏)
Join Date: Mar 2009
Location: Beijing, China
Posts: 689
Blog Entries: 9
Rep Power: 21
lakeat is on a distinguished road
Send a message via Skype™ to lakeat
Dear all,

Help please! Is anyone working on the mesh movement?
Is the updateCoeff() the only portal to move the mesh points?
Pls correct me if I am wrong:
To use this updateCoeff() portal, one has to provide the delta_displacement to the operator::=.

But sometimes, the delta_displacement is calculated from B-A,
where,
B is the target position, and A is the old position we have now.

But I am wondering if both A and B are small numbers, isn't there going to be an accumulation of the errors?

Any ideas?
__________________
~
Daniel WEI
-------------
Boeing Research & Technology - China
Beijing, China
Email
lakeat is offline   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
c++ libraries and solver compiling vaina74 OpenFOAM Installation 13 February 3, 2012 17:43
ParaView for OF-1.6-ext Chrisi1984 OpenFOAM Installation 0 December 31, 2010 06:42
[Netgen] Installation of Netgen in SuSE Linux 92 edvardsenpriv OpenFOAM Meshing & Mesh Conversion 23 January 16, 2009 06:12
How to get the max value of the whole field waynezw0618 OpenFOAM Running, Solving & CFD 4 June 17, 2008 05:07
user subroutine error CFDUSER CFX 2 December 9, 2006 06:31


All times are GMT -4. The time now is 07:31.