Learning Forum

[chan.ewen]

I have an object that I want to perform an aerodynamics simulation on. It is centered about the origin, and is 9.5 mm wide, 16 mm long, and 1.75 mm high.

 

I want to create a domain that has a 0.25 mm gap on the sides and bottom of the object, and the inlet is 30 mm from the front of the object and 30 mm from the rear face of the object.

 

I tried creating a domain and then sizing it, but when I then click create solution -> it doesn't let me use that domain; it wants to create a new one.

 

Can you please tell me where I can find the tools so that I can position and size the domain on such precise terms (because when I just try and click and drag the faces, it only approximates the solution and with such small gaps, small changes or errors in the dimensions has a profound impact on the results.

 

Thank you.

[Andrew Stankovich]

Ewen  When you are creating a solution uncheck the create fluid volume box under the material selection. The software will ask you to choose a body to be used as the fluid volume, then you can press enter or click the checkmark.

[chan.ewen]

Andrew Stankovich 

Yeah, I tried that as well. But the domain that I had already created automatically gets hidden and only the solid that I had create (of my object) becomes available for me to select the inlet face, (shift or control click to define the outlet face, etc.).

 

It was "weird". It wouldn't let me do it, hence why I am asking.

 

Thank you.

 

(How can I make sure that the domain and my object are centered about the origin? I'm more used to the "traditional" programs that use sketches and dimensional constraints to size and position features.)

 

Thanks.