CFD Online Discussion Forums

CFD Online Discussion Forums (https://www.cfd-online.com/Forums/)
-   Fluent Multiphase (https://www.cfd-online.com/Forums/fluent-multiphase/)
-   -   Cavitation modeling in laminar flows (https://www.cfd-online.com/Forums/fluent-multiphase/140508-cavitation-modeling-laminar-flows.html)

Razvan Deaconu August 16, 2014 16:07

Cavitation modeling in laminar flows
 
Hello guys! I am trying to simulate a laminar, steady, incompressible, flow of water in a stepped land thrust bearing. I want to take into consideration the effects of cavitation but I can't really figure out how. It does not seem to converge when I select the Multiphase-Mixture model.

My questions are:

1. Can cavitation be modelled on laminar flows?
2. Under phase interactions, do I also have to set the mass transfer conditions form phase 2 (water-vapor) to phase 1 (water-liquid) ?

Any kind of help is very much appreciated. If you have further questions please feel free to contact me.

Thank you in advance!

Grigoriy_Ermolaev August 22, 2014 14:06

I have made the calculation like you (laminar flow; without vapor>liquid). And it is ok for the first order discretization method.

ghost82 September 3, 2014 12:12

Quote:

Originally Posted by Razvan Deaconu (Post 506282)
2. Under phase interactions, do I also have to set the mass transfer conditions form phase 2 (water-vapor) to phase 1 (water-liquid) ?

You should set interaction from phase-1 (liquid) to phase-2 (vapor); don't set condition from phase-2 to phase-1.

Daniele


All times are GMT -4. The time now is 07:57.