AcuSolve - EDEM coupling: theory of porosity calculation

Sunny_21964

Hello, Community Team,

Hope you are well.  I am familiar with Edem-Fluent coupling, but not sure on AcuSolve-EDEM coupling. I have several questions:

1) For the coupling, which method is used to calculate the porosity in a mesh cell for AcuSolve-EDEM coupling?

2) And could the mesh cell size be smaller than the particle size (with a wide size distribution) for AcuSolve-EDEM coupling? 

3) Is there any theory document for AcuSolve-EDEM coupling? 

Looking forward to your kind help. Many thanks.

Best wishes

Sunny

Stephen Cole

Hi Melin,

 

For the porosity it's based on the particle position (centre point) and the mesh cell that this particle is in.  There is then a multi-stage smoothing which is used to calculate the porosity, especially important when the particle size is larger than the mesh cell size.  So on the second point the mesh can be smaller than the particle size.  There is further information in this webinar:

 

https://www.altair.com/resource/novel-altair-simulation-solutions-for-particulate-and-particle-laden-flows

And the best place for the documentation is:

 

https://2021.help.altair.com/2021/hwsolvers/acusolve/

 

Regards

Stephen