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Smoke extraction from a building

Posted Jul 4, 2014, 4:45 p.m. EDT Fluid & Heat, Heat Transfer & Phase Change, Computational Fluid Dynamics (CFD), Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.4 1 Reply

Eloy Ruiz
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Hello comunity!!

I'm in a trial version of COMSOL to evaluate its acquisition.

I want to simulate the smoke extraction from the building when there is a fire.
I plan to start by simulating a room where there is a source of heat and smoke and also a flow output with constant flow.

So far I have modeled the room and the flow output but I can't find a source that will give me heat and smoke (like a gas).

In the end I want to make a transient analysis and check that smoke isn't concentrated at dangerous levels below certain height and I also want to check temperatures around the smoke generation area.

Any help with the modelling of the smoke generation will be much appreciated.

Kind regards.
Eloy Ruiz
Lima, Peru
1 Reply Last Post Jul 7, 2014, 5:59 a.m. EDT
Pieter Westerik
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Posted: 10 years ago Jul 7, 2014, 5:59 a.m. EDT
I think you should work with 'conjugated heat transfer' physics for the flow of air/gas and heat distribution, and 'transport of concentrated species' to find the gas distribution. I think you have to put an inflow heat flux in the heat transfer physics and an inflow in the species physics. But I am not entirely sure if this has the right effects.
I think you should work with 'conjugated heat transfer' physics for the flow of air/gas and heat distribution, and 'transport of concentrated species' to find the gas distribution. I think you have to put an inflow heat flux in the heat transfer physics and an inflow in the species physics. But I am not entirely sure if this has the right effects.

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