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The Calibration of Preston Tubes in Transpired Turbulent Boundary Layers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Preston tube calibration of Patel is reproduced for zero pressure gradient and zero mass transfer turbulent flows, by momentum balance and by direct measurement using a floating element ...
Direct Measurement of Wall Shear Stress With Mass Transfer in a Low Speed Boundary Layer
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A porous plate floating element is used to obtain direct measurements of shear stress in a transpired zero pressure gradient boundary layer from laminar asymptotic suction to blow-off. The ...