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Fire dynamic simulator : Fuel density regarding

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Old   September 7, 2021, 01:11
Default Fire dynamic simulator : Fuel density regarding
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praveen
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hi all,
I am working on fires at different altitudes (reduced air pressures) and using Pyrosim interface. Used volume flow rate (area*vel) to specify the rate of flow.
I am using methane as fuel and the density of the fuel will also be less at higher altitudes.

My doubt is whether I need to use a mass flow rate inlet and reduced mass flow rate to accommodate the variation in density of fuel with altitude.

I have set the simulation parameters- reduced pressure and reduced oxygen fraction already.

Will FDS take this fuel density variation automatically if I specify a volumetric flow inlet?
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fire dynamic simulator, fire dynamics simulations, fire simulation, pyrosim, reduced pressure

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