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| Teaching Since: | Apr 2017 |
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| Questions Answered: | 402 |
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MSC,MBA(IT)
Standford
Jun-1997 - Sep-2000
IT Manager
Honeywell
Aug-2001 - Present
In the flow of air at 20°C and 1 atm past a flat plate in Fig. P7.43, the wall shear is to be determined at position x by a floating element (a small area connected to a strain-gage force measurement). At x= 2 m, the element indicates a shear stress of 2.1 Pa. Assuming turbulent flow from the leading edge, estimate (a) the stream velocity U, (b) the boundary layer thickness at the element, and (c) the boundary layer velocity u, in m/s, at 5 mm above the element.

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