Question about constant source term in periodic channel
Posted: Thu Dec 06, 2018 8:41 pm
Hi Code Saturne team:
I have a periodic channel with ribs on the wall, the mesh is shown in the photo below. The top and bottom face are periodic, and the flow is downward. I was using a constant source term to drive the flow, which is a typical method to simulate periodic flow. But I realised that near the ribs, the boundary layer of the flow is separated, which means the friction loss is changing in that area, and the pressure loss should be different in different locations, so how can we use constant source term to drive the flow if the pressure loss is changing locally. It means that if we use constant source term to simulate such flow, it's not physical. Am I saying correctly? Thanks!
Regards!
Jundi
I have a periodic channel with ribs on the wall, the mesh is shown in the photo below. The top and bottom face are periodic, and the flow is downward. I was using a constant source term to drive the flow, which is a typical method to simulate periodic flow. But I realised that near the ribs, the boundary layer of the flow is separated, which means the friction loss is changing in that area, and the pressure loss should be different in different locations, so how can we use constant source term to drive the flow if the pressure loss is changing locally. It means that if we use constant source term to simulate such flow, it's not physical. Am I saying correctly? Thanks!
Regards!
Jundi