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-   -   Eulerian model with DDPM (http://www.cfd-online.com/Forums/fluent/113458-eulerian-model-ddpm.html)

Lucaaa February 20, 2013 05:20

Eulerian model with DDPM
 
Hello to all,
first of all I apologize for my English. Let me explain my problem. I'm trying to simulate with FLUENT a fluid bed reactor. I used the Eulerian-Eulerian multiphase model and thus far there have been no problems. Now, however, I was interested in assessing the trajectories of the particles inside the reactor, and then use the DPM model. In particular the guide I read that you can use the Eulerian model including the DDPM. when I go to set up my problem with these parameters, launch the simulation and immediately finds a divergence. How can I simulate this my model? I hope I was clear in explaining. I also tried to do the following:
-launch the simulation without introducing any particle so as to have a converged solution;
-insert the particle inside the reactor by selecting the DPM menu templates.

is correct? I thank you in advance for your answer.
Hello,
Luca

shk12345 February 20, 2013 09:53

hi
 
The problem with DDPM model is that it always always diverges.
I have tried it a lot but always it diverges.

But according you one theory you have to first solve DPM model and then use the data from there to put in DDPM model.
U have to interpolate flow and particle trajctories from DPM and put in DDPM.

Tell me if it works.

Regards
shk

Lucaaa February 20, 2013 09:56

thanks for the reply. I'm not sure how, but now it is simulating and seems to be fine. soon as I finish and let you know if I try with the method that you told me. Thank you again for your response :)

Luca


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