Question

Air gap thickness between skin and fabric for convection

Answer 1

fabrics is 4 mm, the thermal insulation performance of the air gap is the best. ducted numerical simulation for fire testing with a manikin exposed to a flashover. the air gap is weakened with increase in the air gap thickness. at all, if the air gap between the skin and the fabric is 6.35-mm thick.

Answer 2

heya meta here is ur answer ✍️✍️
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the fabrics is 4 mm, the thermal insulation performance of the air gap is the best. ducted numerical simulation for fire testing with a manikin exposed to a flashover. the air gap is weakened with increase in the air gap thickness. at all, if the air gap between theskin and the fabric is 6.35-mm thick.
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The driving force of heat convection is a temperature gradient, and for mass convection it is a solute concentration gradient. ... Heat convection is affectedby different factors, such as the shape of the container, the relative orientation between the heat flow and the container, and the melt and boundary properties.
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hope it helps u❤️❤️