I am currently replicating a CFD simulation of a centrifugal pump using a different pump design while maintaining the same boundary conditions as the original simulation. My setup includes two solid bodies: a computational fluid (CP) domain and a solid body designated as the MRF (Multiple Reference Frame) rotating zone.
I have encountered an issue during the mesh generation process. When I add the MRF body as a cell zone within the mesh, the mesh generation fails. However, if I exclude the MRF body from the cell zone, the mesh is generated successfully. Unfortunately, omitting the cell zone causes the simulation to be recognized as a multi-region mesh, preventing the simulation from proceeding further.
Has anyone experienced a similar issue or have any suggestions on how to resolve this? Below is the link to the simulation setup; the second one is based on my CP design.
I appreciate any guidance or insights you can provide.
Every time the “An error occurred” prompt appears, this is realted to some sort of bug since at least a more detailed description of the problem should be shown. We’ve already reported this to the dev team and they are looking into it.
However, if I can give some input of my own here, I see some odd features in your CAD. Take for instance this floating face right here:
Whereas the original geometry from the tutorial is very clean. Is there a way to get your geometry to be cleaner? I also see some sharp edges/small faces that could potentially get your model to not be meshed.
To be honest I’m not sure how the MRF algorith is integrated into the mesher but a combination of them two might be leading to the discretization failing due to these unwanted features.
In addition to Igor’s recommendations, and while the team works on solving the core issue parallelly, the team suggested a probable solution to have a slightly enlarged MRF region so that it is not exactly tangential to the blades.
