دانلود مقاله انگلیسی Analysis of Impact Air-permeabilityof FabricsIn this paper, the methodology of studies on the impact air-permeability of fabrics is pre
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sented. Stands for the static and dynamic investigation of textiles are described. A math
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ematical model of the pressure drop in a fabric resulting from the impact of air flow through
the product has also been submitted. A measure of impact permeability in the form of an
index for arranging fabrics with respect to their flow properties is given. Characteristic
features of the structure of a woven fabric from a group of products of negative, positive
and small index are shown