cfdemSolverPISO Ergun equation validation wrong?

Submitted by Donald Trump on Mon, 09/10/2018 - 17:54

Dear all,

I run the cfdemsolverpiso tutorial case for fluid flow through a particle bed, however, I found that the generated image picture showed a big difference between the analytical ergun pressure drop and the simulation results. especially before the bed was fluidization. While the velocity was smaller than the minimal velocity, the simulated pressure drop was much larger than the analytical one? Can anyone help me explain this?

Thanks

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Image icon cfdemsolverpiso_erguntestmpi.png53.95 KB

medvedeg | Mon, 09/10/2018 - 18:32

Hi Donald,

looks like you did some modifications in the code or in the case setup

Alexander Podlozhnyuk