Numerical Investigation of a Vertical Surface on the Flammable Extent of Hydrogen and Methane Vertical Jets


The effect of vertical surface on the extent of high pressure unignited jets of both hydrogen and methane is studied using computer fluid dynamics simulations performed with FLACS Hydrogen. Results for constant flow rate through a 6.35 mm round leak orifice from 100 barg, 250 barg, 400 barg, 550 barg and 700 barg compressed gas systems are presented for vertical jets. To quantify the effect of the surface on the jet, the jet exit is positioned at various distances from the surface ranging from 0.029 m to 12 m. Free jets simulations are performed for comparison purposes.

Related subjects: Safety
Countries: Canada

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Numerical Investigation of a Vertical surface on the Flammable Extent of Hydrogen and Methane vertical Jets

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