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

A question about matrix eigenvalues.

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

Reply
 
LinkBack Thread Tools Display Modes
Old   November 14, 2004, 05:51
Default A question about matrix eigenvalues.
  #1
Demidov
Guest
 
Posts: n/a
Hello guys! Thank you all for that valuable discussion on my previous question.

At the moment I'm trying to solve eigenvalue and eigenvector problem for that great matrix that offen results from elliptic equations. Of course its impossible to solve it using exact methods (and I dont need all the eigen values). So, I would like to use another methods.

At the moment I use: 1) FOR approximate finding eigenvalues and eigenvectors of the sparse matrix - the reverse iterations method 2) FOR approximate solving linear equation system in this method - the conjugate gradients method.

What do you think of this approach? Which methods you prefer to use in case the matrix is very large and you dont need to find all the eigenvalues?
  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
question about uds tanven FLUENT 2 July 5, 2015 11:22
Question about Table applicaiton. universez OpenFOAM Running, Solving & CFD 0 January 12, 2010 21:31
OpenFOAM version 1.6 details lakeat OpenFOAM Running, Solving & CFD 42 August 26, 2009 21:47
PISO Question titio OpenFOAM Running, Solving & CFD 1 July 6, 2009 05:33
A question about the source code of realizableKE.C yuhai OpenFOAM Programming & Development 1 June 26, 2009 08:05


All times are GMT -4. The time now is 16:21.