CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Courant Number - Multigrid level - Residual Smooth

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

LinkBack Thread Tools Display Modes
Old   March 28, 2006, 08:55
Default Courant Number - Multigrid level - Residual Smooth
Posts: n/a
Hi !

I'm trying to simulate a shock wave on a 30mm shell, Mach 2.4.

I'm not using Fluent or a long time and I would like to get some explanations about the "Solution Controls" setting. What does mean Courant Number, Multigrid level, Residual Smoothing, and how to set them ? (does the "smoothing" option helps in adapting the grid for a better accuracy ??)

I'm working under an operating pressure=0Pa, pressure far field 101325Pa/Mach2.4 (for inlet and outlet). Solver coupled/explicit/axi, ideal gaz and laminar.

I tried First Order Upwind discretation scheme, which gives a better convergence. I kept the default courant number(=1).

Many thanks by advance.
  Reply With Quote


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
Forces in OF15 richard OpenFOAM Running, Solving & CFD 168 November 14, 2017 12:51
Upgraded from Karmic Koala 9.10 to Lucid Lynx10.04.3 bookie56 OpenFOAM Installation 8 August 13, 2011 04:03
Error while running rhoPisoFoam.. nileshjrane OpenFOAM Running, Solving & CFD 8 August 26, 2010 12:50
lift and drag on ship superstructures vaina74 OpenFOAM Running, Solving & CFD 3 June 8, 2010 12:30
Computational time sunnysun OpenFOAM Running, Solving & CFD 5 March 16, 2009 04:32

All times are GMT -4. The time now is 05:42.