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-   -   Particle Size Distribution (PSD) in fluidization (http://www.cfd-online.com/Forums/fluent/88607-particle-size-distribution-psd-fluidization.html)

sangramroy May 21, 2011 14:12

Particle Size Distribution (PSD) in fluidization
 
Hi,

I am working on simulation of a circulating fluidized bed. Its assumed that the entire batch of solids are of same size (identical dp), though in reality it is not the case. Is it possible to define a particle size distribution (PSD) for such cases? Do I need to define a UDF to mention PSD?

alighaffari May 22, 2011 02:40

Hi
you can use Rosin-Rammler distribution model if you are using DPM model in fluent for inlet particles size distribution. you can eighther use UDF if Rosin-Rammler distribution model is not appropriate for your case study.

sangramroy May 22, 2011 04:00

Is it possible to implement the said model while using Eulerian-Eulerian approach?

ch3coohminh November 2, 2011 05:19

Quote:

Originally Posted by alighaffari (Post 308721)
Hi
you can use Rosin-Rammler distribution model if you are using DPM model in fluent for inlet particles size distribution. you can eighther use UDF if Rosin-Rammler distribution model is not appropriate for your case study.

Hi.thanks you so much for suggests.Can you give me UDFS of ROSIN RAMMLER distribution ??


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