[beknrbow]

Hello CFD community,


I am having major stability problems when running a fairly simple case in interFoam. I meshed a pipe connected to a tank using blockMesh. Water should flow through the tube and drop down into the tank that overflows once the water level reaches the outlet.


I have kept the space discretization simple. I have tried refining the mesh more but my time step keeps dwindling until it becomes a floating point error. I can barely simulate 0.03 seconds. I would like to know if you have any good tips/strategies for meshing and ensuring the courant number is kept below 1 because up to this point I have basically just been guessing and working through trial and error.


I have provided an image of the mesh below as well as the case file which you can find attached as a zip file. You should run blockMesh as I emptied the polymesh file to keep the file size at a bare minimum. Thank you in advance!

[kk415]

Hello,


I am facing a same problem for solving a swirl jet atomizer. Any help is deeply appreciated.