CFD Online Discussion Forums

CFD Online Discussion Forums (
-   FLUENT (
-   -   PBM availability. (

Kes May 15, 2008 03:06

PBM availability.
Hello i would like to ask for PBM (Population Balance Model), whether its found in Fluent 6.1.22? If it is, can anybody tell me how to access it?

bohis May 15, 2008 03:40

Re: PBM availability.
go through manual. You need an extra license for that anyway

Kes May 15, 2008 03:55

Re: PBM availability.
I have searched through the manual but am still unable to find the function PBM. The manual i'm using is an online manual which is listed as below, Please advise.

bohis May 15, 2008 04:24

Re: PBM availability.
well, it is manual for Fluent 6.1, in that time there was no PBM yet. Have a look to manual of 6.3, maybe 6.2 is enough.

Kes May 15, 2008 04:27

Re: PBM availability.
However i'm using Fluent 6.1.22. In this case does this mean that i could not use the PBM function?

bohis May 15, 2008 04:42

Re: PBM availability.
I guess you are right, but I am not sure. I am not used to work with PBM. Are you sure that you need PBM?

Kes May 15, 2008 04:45

Re: PBM availability.
Yeah i was looking at some forum messages and they were specifying the usage of PBM to solve my problem. Would like to ask you another thing. If i were to create droplets in a T-junction but the droplets created were in the form of slug flow, i shouldn't be using the Mixture model right? Should be using the VOF model right? As there are no dispersed phase. Also any idea on how to make a surface hydrophobic or hydrophilic in Fluent?

bohis May 15, 2008 05:01

Re: PBM availability.
If the slug flow was going on, I would use VOF. As regards walls your hydrophobic surface, I do not know.However, in VOF you can set the angle between two phases and maybe, you will need to play with stress conditions on the walls. I really do not know

Kes May 15, 2008 05:15

Re: PBM availability.
Haha ok thanks man.

Thiru May 15, 2008 07:22

Re: PBM availability.
Hai I could locate the PBM in help mannul. It is clearly saying that we need special licence for that. Here is the exact text from the mannual

1. Introduction

In FLUENT the population balance model is provided as an addon module with the standard FLUENT licensed software. A special license is required to use the population balance module.

FLUENT offers three solution methods to the population balance equation: discretized population balance, standard method of moments, and quadrature method of moments.

Location: /local/Fluent.Inc/fluent6.3.26/help/html/popbal/main_pre.htm

HP May 15, 2008 10:19

Re: PBM availability.
In text you go to define models addons and select PBM

Kes May 15, 2008 21:46

Re: PBM availability.
I'm sorry i don't quite understand what you mean there Thiru, the address you gave me is for an internet website or what? Plus i think that is for Fluent 6.3.26 while i'm using Fluent 6.1.22.

HP what do you mean by in text?

Thiru May 16, 2008 03:29

Re: PBM availability.
Hey Kes. I am sorry for the confusion. It is not an internet website. I just mean the location of the help file which will be created during your installation. When I saw the help files in my local network I could find about PBM. The same path I gave you. Generally it will be the location of help files.

Please let me know if you want those help files (PBM) I can send as an attachment.


Kes May 16, 2008 04:27

Re: PBM availability.
Haha ok. It would be good if you could send the help files to my e-mail address.

emka June 26, 2016 00:34

I'm looking for PBM in fluent 6.3.26. I couldn't find it yet. can anybody help me?

emka June 26, 2016 02:46

I get it
on the console type: define models addon-module
then appear a message so enter 5.

All times are GMT -4. The time now is 15:21.