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Mechanical Engineering
How does stacking and creating an air gap affect fabric air permeability?
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[QUOTE="Martin D, post: 5884923, member: 635886"] That's for a 5.93 in2 circular piece as per the standard test. I see this basically as a filter in a pipe. We have pressure and and velocity measures. Can we determine from that some kind of coefficient for that material that can be used to evaluate what the flow would be past the second layer. So say you have a section of pire, one layer, an other section of pipe half an inch long and then a second layer of material, then free air. What formulas would be involved to evaluate the pressure in the section of pipe between the two layers of fabric and the final velocity of of the air through the second layer? [/QUOTE]
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How does stacking and creating an air gap affect fabric air permeability?
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