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Old   October 8, 2009, 14:59
Question boundary conditions for building ventilation
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rahul
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hello everyone ,
i am taking a case of builiding room with two cross windows and i want that ambient air flows naturally from openings than which type of boundary condition should i take?

And if i want air flow analysis at inlet and outlet than which condition will touch the real condition.

Is it favourable to model building surrounded by bigger volume and define boundary condition on that volume and than analyse that.

Please anyone tell me.....
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Old   October 12, 2009, 02:50
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Quote:
Originally Posted by rahulsharma View Post
hello everyone ,
i am taking a case of builiding room with two cross windows and i want that ambient air flows naturally from openings than which type of boundary condition should i take?

And if i want air flow analysis at inlet and outlet than which condition will touch the real condition.

Is it favourable to model building surrounded by bigger volume and define boundary condition on that volume and than analyse that.

Please anyone tell me.....

If you have the possibility, take your building into a "wind tunnel". It should be at least 5-6 times bigger than your building.
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Old   October 13, 2009, 01:28
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Originally Posted by Laci View Post
If you have the possibility, take your building into a "wind tunnel". It should be at least 5-6 times bigger than your building.
thanks laci i will do this.
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