I simulation VAWT and in rotation region I know n = 360 RPM, this turbine have sizes 0,4m x 0,5m and CFD results is velocity magnitude about 3000 - 18 000 m/s.. (it should be max 20-25 m/s) I think i didn't set well some options but have no idea which one.
This could be a number of things.
If you are running with air, perhaps you need to run compressible?
Maybe you do not have sufficient mesh?
Are the Rotating Region and Boundary Conditions set to ramp up properly over time?
Would you be OK to share the model?
I try make flow compresible and nothing happend. I dont really know how to build "better" mesh.
in attachments i send in rar my project
Thank you for help!
Take a look in the hepl and the user guide for how to refine the mesh.
Could you save out a .cfz (share file - just the support option) and share that with me please? I cannot open a cfdst.
I need to say thanks a lot!
I don't refine mesh (In tutorials there was nothing about it but when you said that I should look at "wiki help" i found it without problems).
Secondly my model in inventor somehow has bad dimensions (everything x100) and here is solution for too high velocity magnitude