CFD Online URL
[Sponsors]
Home > Forums > ANSYS Meshing & Geometry

Number of elements x double precision

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 2, 2009, 15:36
Default Number of elements x double precision
  #1
New Member
 
Matheus Guzella
Join Date: Jun 2009
Posts: 12
Rep Power: 7
matheusguzella is on a distinguished road
I'm running a simulation of wind tunnel and have a question related to the number of elements and double precision. On the computer that I'm running it's possible to run (without double precision) a mesh with 3 million elements (maximum). I'm worried about the results (because of single precision) so I decreased the mesh to 1.5 million to run it with double precision. It's always good to perform a simulation with high number of elements? Double precision is always important or it's better to use a higher mesh and run with single precision?

Thanks!

Last edited by matheusguzella; October 3, 2009 at 12:15.
matheusguzella is offline   Reply With Quote

Old   October 5, 2009, 11:53
Default Details please...
  #2
Senior Member
 
PSYMN's Avatar
 
Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
Posts: 2,660
Blog Entries: 1
Rep Power: 34
PSYMN has a spectacular aura aboutPSYMN has a spectacular aura about
What is your solver? Mesher? Application?
PSYMN is offline   Reply With Quote

Old   October 7, 2009, 11:15
Default thx
  #3
New Member
 
Matheus Guzella
Join Date: Jun 2009
Posts: 12
Rep Power: 7
matheusguzella is on a distinguished road
Quote:
Originally Posted by PSYMN View Post
What is your solver? Mesher? Application?
Sorry:

Solver: ANSYS CFX Solver
Mesher: ANSYS (Advanced meshing)
Application: I'm need to validate experimental results (academic purposes).
matheusguzella 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
Mesh Refinement Luiz Eduardo Bittencourt Sampaio (Sampaio) OpenFOAM Mesh Utilities 41 January 17, 2013 03:43
DecomposePar unequal number of shared faces maka OpenFOAM Pre-Processing 6 August 12, 2010 10:01
Missing math.h header Travis FLUENT 4 January 15, 2009 12:48
what's wrong about my code for 2d burgers equation morxio Main CFD Forum 3 April 27, 2007 11:38
REAL GAS UDF brian FLUENT 6 September 11, 2006 09:23


All times are GMT -4. The time now is 00:29.