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TUI commands for animating air/water interface

Posted January 26, 2013 at 15:00 by diamondx

Good to know from zippyhybrid

Quote:
Originally Posted by zippyhybrid View Post
I'm not sure of a way to do that without having data files saved at previous time steps. I haven't used Fluent's tools to create animation, I've always saved contour plots as .png or .jpg images then used 3rd party tools to create animations. I create similar animations however since I am investigating air-lift driven flow and am interested in the behavior of bubbles in the airlift column. I'd suggest visualizing the interface using contours of phase
...
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Old

Gmsh Functions 1

Posted January 21, 2013 at 06:18 by Hisham (Notes for OpenFOAM!)
Tags gmsh

Gmsh is a powerful mesh generator. One of its strength points is the use of both scripting and GUI functionality. Scripting has two neat features: Function : lets one define a function and call it several times. Include : lets one include other scripts into the geometry file script.

Assume we have a Mesh.geo file that we have for the geometry. You can start off by:

Code:
Include "Functions.geo" ;
The Functions.geo file is a file that has some function...
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Old

Convergence

Posted January 16, 2013 at 14:45 by arashsk

Quote:
Originally Posted by Centurion2011 View Post
I see all kind of mistakes on these forums when dealing with convergence, so I will give brief review of methods...

At convergence, the following should be satisfied:
  • All discrete conservation equations (momentum, energy, etc.) are obeyed in all cells to a specified tolerance OR the solution no longer changes with subsequent iterations.
  • Overall mass, momentum, energy, and scalar balances are achieved.
  • Monitoring convergence using residual history:
  • Generally, a decrease
...
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Old

Transient Temperature Profile

Posted January 16, 2013 at 09:04 by diamondx

UDF for a transient temperature profile


Quote:
Originally Posted by alven299 View Post
Have figured it out. Here is the script, hope it might be of help to others:

#include "udf.h"

DEFINE_PROFILE(inlet_temperature,t,i)
{
real x[ND_ND];
real time;
face_t f;

begin_f_loop(f,t)
{
F_CENTROID(x,f,t);
time=CURRENT_TIME;
if(time<40)
F_PROFILE(f,t,i)=300;

else

F_PROFILE(f,t,i)=340;
...
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Old

Exporting blocking/mesh for a similar geometry By simon

Posted January 6, 2013 at 18:23 by diamondx

During import, you can also associate the new geometry file with the old tetin file so all the family sizes, etc. are preserved... This is an option near the top of the import DEZ.

Then load the old blocking file and update the associations.

If they don't all auto associate properly, you can use the interactive controls to adjust things...
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