SimScale CAE Forum

A multi-region mesh was assigned - this analysis-type requires a single-region mesh


#1

When I was doing Internal CFD, after meshing, and error is shown
A multi-region mesh was assigned - this analysis-type requires a single-region mesh.
How to solve this problem?

project link: https://www.simscale.com/workbench/?pid=4629629296848762453&mi=run%3A1%2Csimulation%3A3&mt=SIMULATION_RUN

@PowerUsers_CFD


MRF vs AMI rotational zone
#2

Hi,
You have to subtract the turbine blades from the model for simulations. You need to replicate the fluid flow domain in your CAD model and then go for meshing.


For more, kindly go through the following topic having same problem with solution.
https://www.simscale.com/forum/t/meshing-error/86351/14

Regards


#3

Do I have to assign material fot MRF? I have a run that is successful after I did the substraction but the result for forces is very small, solution field showed me that there are no pressure difference in the volume.


#4

Hi @tedmund

Yes, you should give it a try, i also have assigned material to rotating zone in one of my simulation and the results are fine.

Regards