# Trouble implementing population balance models in FLUENT

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August 23, 2013, 02:58
Trouble implementing population balance models in FLUENT
#1
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Ajinkya Pandit
Join Date: Sep 2011
Posts: 8
Rep Power: 7
I am trying to implement the Population balance modules in FLUENT. The problem I am trying to solve is a simple case of growth. I have tried to solve the problem using discretization, method of moments and qmom. They have failed to converge. I have also tried to tune the under relaxation factors to no help. The case I have tried to implement is given in the attached file and has been implemented in literature (Marchisio et. al. (2003); size independent growth; pg. 1271).

Kindly suggest further action.

Marchision and Fox, (2003), "Quadrature Method of Moments for Population-Balance Equations" AIChE
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 April 7, 2014, 22:34 #2 Senior Member   Dongyue Li Join Date: Jun 2012 Location: Torino, Italy Posts: 742 Rep Power: 9 Hi bro, We know that in breakage there would be a definite integral. How do you deal with this? Using numerical integration? Thanks

June 22, 2016, 09:07
#3
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rahgoshafan
Join Date: Jul 2009
Posts: 9
Rep Power: 9
Quote:
 Originally Posted by Ajinkya I am trying to implement the Population balance modules in FLUENT. The problem I am trying to solve is a simple case of growth. I have tried to solve the problem using discretization, method of moments and qmom. They have failed to converge. I have also tried to tune the under relaxation factors to no help. The case I have tried to implement is given in the attached file and has been implemented in literature (Marchisio et. al. (2003); size independent growth; pg. 1271). Kindly suggest further action. Marchision and Fox, (2003), "Quadrature Method of Moments for Population-Balance Equations" AIChE

Hello
can you solve your problem? can you send me tutorial of steps.

thanks

email: rahgoshafan@yahoo.com

 Tags fluent, population balance, qmom

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