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Old   February 15, 2021, 00:43
Question under ventilated compartment
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So I am modeling an extremely underventilated experiment. I tried to do that with FDS, but the combustion models are one and two-step reactions, and fast chemistry assumption is used. That leads to unrealistic low compartment temperatures because the burning happens at the vent.

I am considering starting with fire foam since it has more combustion models. If I used the diffusion model, will that solve the issue? Also, I have limited time to complete the project.

OR should I stick to FDS, and try the different turbulent models. That might affect the mixing time which depends on the turbulent viscosity. Also, diffrent autoignition temperature might be used.

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fire dynamics simulations, firefoam, openfoam, under ventilated

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