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Search took 0.00 seconds. Search: Posts Made By: Amir
Forum: FLUENT October 30, 2012, 14:20
Replies: 24
Views: 8,661
Posted By Amir
Hi, You have different options and one of...

Hi,

You have different options and one of them is implementation of MHD module, but it's not really necessary for such simple purpose.
All you need is to add a source term to the NS equation; for...
Forum: FLUENT May 8, 2012, 14:32
Replies: 24
Views: 8,661
Posted By Amir
Hi, you can store gradient of a UDS in...

Hi,

you can store gradient of a UDS in another UDS and take gradient from new ones:
UDSI(c,t,1)=UDSI_G(c,t,0)[0]
UDSI(c,t,2)=UDSI_G(c,t,0)[1]
Laplacian of...
Forum: FLUENT March 28, 2012, 16:07
Replies: 24
Views: 8,661
Posted By Amir
Dear Qin, This may happen because of...

Dear Qin,

This may happen because of incomplete initialization of UDS/UDMs.
Follow this procedure:
before iteration manually initialize UDMs and UDSs in this manner:
solve->initialize->patch...
Forum: FLUENT February 28, 2012, 02:52
Replies: 24
Views: 8,661
Posted By Amir
Hi, First of all, notice that dS[eqn] is the...

Hi,

First of all, notice that dS[eqn] is the derivation of source term respect to x-direction velocity component! and also you've used "o" instead of "0" in this equation.

Bests,
Forum: FLUENT February 27, 2012, 09:32
Replies: 24
Views: 8,661
Posted By Amir
Hi, First of all ensure that you've solved...

Hi,

First of all ensure that you've solved UDS_0 equation correctly. (check the contour)
Then activate the capability of retaining gradient values for further usage in TUI:
"solve/set/expert and...
Forum: FLUENT February 22, 2012, 15:10
Replies: 24
Views: 8,661
Posted By Amir
Hi, 1) The source term of the momentum...

Hi,

1) The source term of the momentum equation is obviously a vector and you have to introduce separate source terms for each direction. (it's easy by setting direction of UDS gradient)
2) Maybe...
Forum: FLUENT February 21, 2012, 12:57
Replies: 24
Views: 8,661
Posted By Amir
I'm not familiar with your case details, but if...

I'm not familiar with your case details, but if it is similar to VOF flow with an external field, your UDF macro is not proper!
you're using DPM body force which exerts a defined force to the...
Forum: FLUENT February 21, 2012, 08:17
Replies: 24
Views: 8,661
Posted By Amir
Dear Adam, There are few suggestions: ...

Dear Adam,

There are few suggestions:


check the dimension of defined variable
you've used constant gradient of permeability; I'm not sure, is the formulation correct? (it's better to use...
Showing results 1 to 8 of 8

 
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