Learning Forum

[sadhurajesh]

[Rob]

Assuming the flow over the fins is in the y-axis I'd restrict the outer domain so it's the same as the finned section in the x direction and extend in z and y.

[sadhurajesh]

enclosure for the above model is created in Solidworks because for the above model while creating an enclosure for the above model I am getting errors. using an enclosure with the model it looks like below.
I did meshing for it. But I am getting an error while updating it to solve in fluent solver.

[Rob]

First off you'll need many more cells across the flow nanofluid channel: you need at least 6-10 cells across a flow channel to have a hope of predicting the flow. The other problem you have is that the fins are interacting with the bounding box to give skew (distorted) cells.
Have you done any of the tutorials? If not, go and review those and the other help videos. You also need to consider how much flow channel is needed to allow the flow profile to develop.

[sadhurajesh]

how to draw a bounding box without touching fins?

[Rob]

Make it bigger?

[sadhurajesh]

If I make it bigger, there is a problem that is the mixing of two fluids which needs to be avoided. so, how to solve it?

[Rob]

Extend the inlet/outlet of the channel?