Magnesium fire: Conservative simulation #12763
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firestudent
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Without a citation to the paper, I don't see how we can comment on the credibility of the flame height limit. But, there must be more to it than "magnesium flames never get above 300 mm". However, if you know the heat release (mass loss rate * heat of combustion), then you can rather easily use an INIT line with a specified HRRPUV and XB for the volume. You can RAMP the HRRPUV and mimic the heat generated as you like. This does not give you all the correct dynamics, but to first order it gives you something reasonable. |
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I am currently conducting a study on the effects of combustion of a pile of magnesium granules on metallic structures. I know that FDS cannot directly simulate magnesium combustion and I am interested in implementing a conservative representation of the combustion process.
Among various publications regarding magnesium combustion, I came across an uncredited data point suggesting that flame heights resulting from magnesium combustion do not exceed 300mm. Could you please provide any credible sources validating this information? If this data were "confirmed," I would like to impose a conservative limit on flame height.
The magnesium pile does not exceed 5kg with a maximum surface area of 1 square meter. Based on the information provided, my idea is to impose a reasonably high Heat Release Rate per Unit Area (HRRPUA) with a contained flame height.
Thank you for your assistance in advance.
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