Learning Forum

[lianapolikaitis]

Hi All,

I am creating a centrifugal pump and am using a MRF (moving reference frame) involving the moving fluid from the impeller. I am currently creating an interface between the impeller and the MRF and after I create the dynamic mesh interface I cannot initialize and I am given this message. (also it creates 4 walls 2 with nothing in them and 2 of the same interface region and I am unsure of how to remove these which I believe are a part of the problem)

My skewness is less than .9 and I have around 4 million elements in the mesh. I am able to initialize without creating the interface. Below is an image of my mesh. 

[Rob]

Plot the two interface surfaces and see if they're in the same location. Also check that the interface entirely surrounds the moving section of the model. 

[lianapolikaitis]

@rwoolhou Yes they are both the same and encompass the entire rotating region.  After looking at other posts about this issue I notice when creating the interface 2 other wall-interface regions are created with no faces. This is true in my case but I also have an interior of my interface. There are still no faces in it however could this be my problem? 

 I used a TUI command on the "interior-MRF" to create an interface between my MRF and the rest of the fluid affected by the MRF. (fluid-fluid interface). I created this interface but now realize that there is still an "MRF-wall" that is the same as my interface region. Should this affect my solution? (I made it a moving wall rotating with the adjacent cell zone)

Below are my BC.