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-   -   Dissappearing/Missing Boundary Type, What Happened? (https://www.cfd-online.com/Forums/fluent/115008-dissappearing-missing-boundary-type-what-happened.html)

 spincfd March 21, 2013 12:22

Dissappearing/Missing Boundary Type, What Happened?

Why my Fluent 6.2.16 misread the boundary type?

I am sure I already specify the boundary type correctly in my Gambit 2.2.30.

But why when analyzed in Fluent 6.2.16, some of these boundary types are missing?

 vasava March 22, 2013 10:18

Can you explain more about your problem. What exactly are you simulating? Which type of boundary and to which type they are converted?

 spincfd March 22, 2013 12:45

Quote:
 Originally Posted by vasava (Post 415720) Can you explain more about your problem. What exactly are you simulating? Which type of boundary and to which type they are converted?
I am simulating a wind motion passing an aerofoil inside the wind tunnel.

I create the geometry of the wind tunnel as a 2D rectangle in Gambit.

And the 2D aerofoil is inside the rectangle.

I specify the boundary types as below:

left edge of the rectangle is a velocity inlet.
right edge of the rectangle is an outflow.
top and bottom edges of the rectangle is wall.

Why Fluent don't show these boundary types?

There are only two option from the "solution initialization" drop down menu (solve > initialize > initialize...), all zones and wall.

Also, I can't find all of the four boundary types I already specified earlier in the Gambit, under the Zone of the Boundary Conditions (Define > Boundary Conditions...) instead of default-interior, fluid, and wall.

Note that I am using Fluent 6.2.16

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