Messages

16

Fluent / Converge a VOF mold filling simulation

« on: May 13, 2012, 11:10:52 AM »

Hi,

I am having difficulty in converging a VOF simulation. It is about mold filling. The viscosity ratio of two fluids is ~5

Please help.

17

Fluent / UDF to compute the internal circulation in a bubble using VOF

« on: May 13, 2012, 11:07:37 AM »

I need a UDF which can compute internal recirculation in a bubble in VOF simulation. Can any one help.

18

Fluent / How to plot the velocity vectors inside one particular phase in VOF simulation?

« on: May 13, 2012, 11:04:17 AM »

While displaying the velocity vectors it displays the velocity vector for all phases. Is it possible to show the velocity vectors inside only one phase at a time?

19

Fluent / VOF Courant number and Global Courant number in FLUENT

« on: May 13, 2012, 10:56:50 AM »

What is the meaning of VOF Courant number and Global Courant number in FLUENT and how are they related?

20

Fluent / VOF: How do I plot the interface between two phases?

« on: May 13, 2012, 10:55:02 AM »

How do I plot the interface between two phases? I am doing VOF simulation.

21

Fluent / How can I access Compressive VOF scheme in Fluent 12?

« on: May 13, 2012, 10:52:30 AM »

How can I access Compressive VOF scheme in Fluent 12?

22

CFX / How do I setup a simulation in CFX 10.0 with R134a?

« on: May 13, 2012, 10:49:32 AM »

How do I setup a simulation in CFX 10.0 with R134a?

23

CFX / Error: mpirun_mpid version mismatch

« on: May 13, 2012, 10:46:41 AM »

When trying to launch CFX 14 in parallel you get the following error: Error: mpirun_mpid version mismatch.

Please help.

24

Fluent / How to specify velocity-inlet to interior faces types?

« on: May 12, 2012, 02:48:33 PM »

I want to specify velocity inlet to interior face zone in the mesh. I have a cylinder completely inside the a box. The inside of the cylinder is meshed and have cell zone fluid-1, and outside of the cylinder is meshed with cell zone fluid-2. The inlet and outlet of the pipe is an interior type and are named interior-5, and interior-6, respectively. There is node-connectivity between fluid-1 and fluid-2 at all the boundary zones of the pipe.

I know the velocity of the fluid entering. Also, the fluid of the pipe does not mix with the fluid outside at the outlet of the pipe. How to specify velocity inlet to the pipe and make the fluid inside the pipe exit the domain at the outlet?

25

Meshing / How to create a helical pipe/coil in Gambit?

« on: May 12, 2012, 01:56:03 PM »

I want to make helical pipe/coil using Gambit. I dont see any function for making helical coil in it. Can any one tell me how it can be done?

Thanks.

26

Fluent / What are the flow iterations per radiation iteration?

« on: May 12, 2012, 12:56:38 PM »

I am using radiation model in Fluent. I cant understand what the flow iteration per radiation iteration mean?
Can anyone explain.

27

Fluent / How big should be the domain for an automotive external aerodynamics calculation

« on: May 12, 2012, 12:12:40 PM »

How big should I make the domain for an automotive external aerodynamics calculation? I want to replicate wind tunnel test.

28

Fluent / Mass and Energy imbalance problem in Fluent simulation with DPM

« on: May 11, 2012, 11:04:00 AM »

Hello,

I am running multiphase simulation with DPM tracked as Lagrangian. In the simulation, heat and mass transfer from discrete phase to the continuous phase takes place. I can not get correct mass and energy balance in the Fluxe report. Can anyone help me?

Thanks.

29

Fluent / Re: How to get time average of the variables in Fluent transient simulation

« on: April 27, 2012, 08:47:46 AM »

See below:
http://cape-forum.com/index.php/topic,1074.0.html

30

Fluent / Re: Particle Plot

« on: April 27, 2012, 08:46:10 AM »

Select the plane as x-axis and DPM concentration on the y-axis, the more the DPM concentration, the more the number of particles hitting that particular region of the wall.
See below for DPM concentration:

http://cape-forum.com/index.php/topic,442.0.html