Disappearance of particles in twoPhaseEulerFoam
Using the twoPhaseEulerFoam v2006, the average particle volume fraction in a fluidized bed diminishes over time. I tried version 2106, and this issue does not occur, and it has been resolved. The problem appears to be caused by the JohnsonJackson boundary condition, as substituting the no-slip boundary condition for the solid phase does not produce this problem. Even if it has been resolved, I was wondering if you could tell me what is causing this issue with the 2006 version.
Steps to reproduce
One can run reproduce the error by running the attached case using the Allrun script and check the results using the 'Select Cells On' to select the whole domain and apply the 'Plot Selection over Time' filter to plot the averaged value of alpha.particles over time.
Case is attachedCEMFJJ1.tar.xz
What is the current bug behaviour?
It reduces the amount of particles in domain which is neoconservative behavior.
What is the expected correct behavior?
The averaged particle volume fraction in the domain should be constant.
Relevant logs and/or images
- OpenFOAM version : v2006
- Operating system :ubuntu
- Hardware info :
- Compiler : gcc