Hi everyone,
I have a problem with a 2D geometry where get static pressures of -95000 [Pa], and with the cavitation module enabled, when i look at cavitation there is 0%, although i have changed in phase options of the water the vapor pressure to 50000 [Pa] (i know thats not real, but it was to check if cavitation module was working).
Could anyone help me?
Solved! Go to Solution.
Solved by srhusain. Go to Solution.
You might also suppress the outer-most solid and select the smallest edge of the fluid boundary to apply the pressure BC. Note that the outer solid is not essential to the fluid flow problem.
Attached is a modified support file that you can try. The attached picture shows some cavitation near the bottom of the model.
I think the key is to use small time steps and 3 nner iterations per time step to get accurate transient simulation. Of course, the pressure boundary condition is essential for stability. Here, I am using 0.5 degrees per time step in order to ensure that the rotor mesh faces (edges) do not skip its counterparts on the stator side as skipping would cause a loss of information transfer between rotot and stator.