Learning Forum

[MHDJ]

Hi,

I would like to simulate water flow inside 2 connecting cylinders, water inters the inlet, and exit the out let. I have attached the picture

I have problem with mesh! the vertical cylinder intrude the horizontal cylinder (there should be a wall of upper cylinder inside the horizontal cylinder).

I have made the geometries inside solidworks separately, and imported them to the ICEM, after having unstructured mesh, I faced the flow due to having 2 contacting face does not go into the horizontal cylinder. I applied the following methods:

 

1. import the mesh files in fluent separately and used the Append and matched the contacting interfaces, this way is a bit tricky and does not always have proper result.

2. I tried to remove 1 and also 2 connecting faces and then I meshed the whole domain, but did not have my desire simulation, because after meshing process is finished the vertical cylinder wall that was inside the horizontal cylinder, disappeared!

 

I would like to know is there any solution to mesh 2 parts in ICEM without having contacting interfaces that water can flow through it and fluent does not consider it as wall boundary condition?

 

Thank you in advance,

Regards,

Mhdj

[Rob]

I don't use ICEM CFD, but can you label the two sets of face pairs? Read up on mesh interface in Fluent as that's what you're aiming for. Personally, I'd use Workbench Meshing for this, or Fluent Meshing 

[MHDJ]

Thank you for your reply
And sorry for my late response.

In fact I do the same thing but this way I mean labling each patch and connecting them in fluent is abit tricky!
Sometimes works sometimes doesn't.

Regards.

[Rob]

It's fairly straight forward when you know what you're doing: until then check every time!