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July 4, 2008, 00:21 |
displacement Ventilation
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#1 |
Guest
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Dear all,
I am now trying to perform a displacement ventilation simulation. Below are my boundaries: 1. Pressure inlet 2. Pressure outlet 3. Heat source with 309K temperature. The model i used is: 1. k-e, 2.RNG 3.Gravity on, full buoyancy 3.ideal gas density 4.PISO pressure-velocity coupling 5. PRESTO pressure discretization Here are my setting. Does it have any mistake? Thanks for any advise. |
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July 4, 2008, 02:51 |
Re: displacement Ventilation
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#2 |
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could also try body force weighted for pressure but looks ok. You may find stnd ke more robust than RNG.
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July 4, 2008, 03:24 |
Re: displacement Ventilation
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#3 |
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Thank you red lemon.
I try stnd ke. and can't converge. but with rng, it converge at 100+ ite. Thanks again. I will try BFW also for my discovery. |
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July 4, 2008, 03:35 |
Re: displacement Ventilation
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#4 |
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Thats interesting as stnd is one of the most robust models. Do you have highly strained/shearing flows?
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July 4, 2008, 04:39 |
Re: displacement Ventilation
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#5 |
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I don't think so. So how should i deal with the setting if i am using a stnd? I tried before with stnd for 2000 ite, the result never converged.
Thanks a lot for your help Cheers, Chin Lim |
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