Engineering, 19.03.2020 21:33 zesk
Air at 27 C and 1 atmflows over a flat plate at a speed of 2.5 m/sec. Calculate the boundarylayer thickness at distances of 20 and 40 cm from the leading edge of the plate. Assume unitdepth in the z direction. Now assume the plate is heated over its entire length to atemperature of 60 C. Calculate the heat transferred in a) the first 20 cm of the plate, and b)the first 40 cm of the plate.
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Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
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Air at 27 C and 1 atmflows over a flat plate at a speed of 2.5 m/sec. Calculate the boundarylayer th...
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