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Reducing Wind-Induced Heat Loss Through Multilayer Clothing Systems by Means of a Bypass Layer

Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa KIS 5B6, Canada

C.A. Broughton

Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa KIS 5B6, Canada

This paper concerns multilayer clothing systems whose outermost layers consist of a somewhat permeable exterior sheath and a layer of light insulating batting. Wind-tunnel tests show that the wind-induced heat loss through such systems can be greatly reduced by introducing a layer with low resistance to airflow between the sheath and the underlying batting layer. The low resistance layer acts as a bypass, allowing air that has penetrated the somewhat permeable sheath to flow downstream with little or no penetra tion of the batting layer. The results have been correlated into a form suitable for guiding of design decisions.

Textile Research Journal, Vol. 70, No. 2, 171-176 (2000)
DOI: 10.1177/004051750007000214


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