|August 8, 2009, 13:14||
Modal Analysis - Beta Features - Arnoldi
Join Date: Aug 2009
Posts: 1Rep Power: 0
I'm using the Beta Features of Fluent v12 to get a modal analysis of a pipe.
It's simply a pipe with a temperture gradient somewhere.
The matrix the modal analysis has a size of about 75.000.
I think I understood the basics of ARPACK which is used here.
My questions are:
1) Can I estimate the time it will need?
2) Why does it need fewer iterations if I want more frequencies? That is really strange.
3) Is the Arnoldi Error calculated with something like: A*x=A*A*x
4) How do I know if the solutions make physical sense. It's simple for my pipe, but how will I know it for my combustion chamber?
Thats for your help, its hard to find informations an the beta features.
|Thread||Thread Starter||Forum||Replies||Last Post|
|Modal Analysis of a Submerged Plate in Water||Zhang ming Wu||CFX||2||June 29, 2010 08:55|
|tutorial for CFD & modal (acoustic) analysis ansys workbench 11||badterojan||ANSYS||1||June 18, 2009 10:29|
|beta hidden features||Bogdan||CFX||1||April 20, 2007 08:51|
|How to start modal analysis||Mvaz||FLUENT||10||January 16, 2006 09:40|
|Short Course: Computational Thermal Analysis||Dean S. Schrage||Main CFD Forum||11||September 27, 2000 17:46|