Error in the rotor-diffuser interface when grid is refined

  • Last Post 08 February 2020
  • Topic Is Solved
sumansapkota posted this 06 August 2019

Hello everyone,

I have been encountering a problem. When I am doing simulation of a pump with a coarse mesh (cell size: 0.05 m) the simulation runs fine. There is an error warning that " Hard points are not supported and might be ignored in the 3D pre inflation " . I disregard this warning and it runs fine.

When I decrease the cell size to to 0.035 m, it gives me the same error warning plus error at the interface when i try to run the simulation. I had a similar error in the solver before but I reduced the impeller-volute domain interface tolerance to 1 mm and it worked fine. Now that I want to have a grid independent study, the solver does not let me. 

The error is included in the attachment.

Attached Files

sumansapkota posted this 08 February 2020

The error was resolved when there was absolutely no tolerance between the rotor and the stator interface.