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Solid works issue

st_george

Newbie
Hello.

I started using Flow Simulation SolidWorks, for getting the pressure from the wind on my curved roof.

I am confused if I am doing the job right.
First of all I do not know if I do have to create the "wind tunnel" or not?

Here is the example of project without the "wind tunnel":



And here is how I though "wind tunnel" should look like - simply by putting 4 solids around my roof (left, right, top, bottom solids):


But it seems that this "wind tunnel" I created is not contributing to anything. Take a look at the longitudinal cut through the Flow simulation project:


Do you see how the red, orange and yellow zones flow into the solid. Like it does not exist.


So do I need this 4 solids or not?

Thank you.
 

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