[swordofangel]

I am trying to perform a 2d analysis of VAWT. But results are completely wrong as seen in the image. From what I can diagnose, its down to the sliding mesh interface.
Also I get a note in fluent: cannot create surface from sliding mesh interface zone.
I am attaching pictures of my mesh, a result, close-ups of variations of velocity near interface and mesh. In one of the images I have initialized the solution by giving an inlet velocity and rotation to individual blades and you can see how there is a break in mesh interface.

[YanNW]

Originally Posted by swordofangel

I am trying to perform a 2d analysis of VAWT. But results are completely wrong as seen in the image. From what I can diagnose, its down to the sliding mesh interface.
Also I get a note in fluent: cannot create surface from sliding mesh interface zone.
I am attaching pictures of my mesh, a result, close-ups of variations of velocity near interface and mesh. In one of the images I have initialized the solution by giving an inlet velocity and rotation to individual blades and you can see how there is a break in mesh interface.

Your velocity flow is along x+ direction right? I think your mesh interface condition is strange. Did you declare the interface boundary condition well? The velocity flow of the outer domain seems not passing into inner domain.

[swordofangel]

Thank you for the reply . what do you mean when you say declare the interface boundary well ? I did declare it as a mesh interface with rotation given to appropriate sections ?