Learning Forum

[Ak Muhammad Adam Pg Hj Ahmad]

Hello, i am writing a thesis on a transient turbine simulation, it would mean everything to me if you can help me rather quickly. So I've set up a sliding mesh interface with a cylindrical rotating domain and stationary outer domain. I've ran the simulation with 0.001 timestep with 20 max iterations.

As you can see, the solution converges and diverges past a certain timestep. In this simulation i applied first inflation layers of 0.1mm up to 12 layers at the turbine geometry, and smooth translation of 5 layers on the stationary and rotating interfaces, the min orthogonal value for rotating domain is 0.12 and stationary at 0.16. 

please let me know what i can do to fix this problem

[Ak Muhammad Adam Pg Hj Ahmad]

@ansys employee, any kind guidance you can share with me here, please?

[Rob]

First comment, we sleep, and tend to work office hours in various timezones: 14 hours to bumping a thread is more likely to cause irritation than get an answer. 

Please provide some better images of what's moving, the interface and what's stationary. Cell quality should be OK but I can't see how many cells you have in any gaps: the image you show looks like large cells on surfaces in fairly close proximity.