A flat plate with chord length L=5m and span H=5m is parallel to a wind current...
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A flat plate with chord length L=5m and span H=5m is parallel to a wind current with far field velocity 100m/s. The kinematic viscosity of air is v = 1.5 105. and the kg Uxcrit = 5.105. air density is p = 1. The critical Reynolds is Recrit m3 V i. Will the boundary layer exceed the critical value at any point along the length of the plate? If yes at which point? The momentum thickness expression: ii. iii. iv. V. at distance x from the leading edge is given by the laminar: 2 -= 0.664 Rex X m s' turbulent: -= 0.016 Rex Re x C = curb dx with Cfx = 0.027 () () + Calculate the boundary layer momentum thickness at L=0, L=2m and L=5m Provide a sketch of the momentum thickness evolution along x. Calculate the drag induced by the laminar boundary layer, integrating the local friction coefficient on [0,L], as: Calculate the total force acting on the plate. The drag force induced on both sides of plate is: Fp = C H L pV. A flat plate with chord length L=5m and span H=5m is parallel to a wind current with far field velocity 100m/s. The kinematic viscosity of air is v = 1.5 105. and the kg Uxcrit = 5.105. air density is p = 1. The critical Reynolds is Recrit m3 V i. Will the boundary layer exceed the critical value at any point along the length of the plate? If yes at which point? The momentum thickness expression: ii. iii. iv. V. at distance x from the leading edge is given by the laminar: 2 -= 0.664 Rex X m s' turbulent: -= 0.016 Rex Re x C = curb dx with Cfx = 0.027 () () + Calculate the boundary layer momentum thickness at L=0, L=2m and L=5m Provide a sketch of the momentum thickness evolution along x. Calculate the drag induced by the laminar boundary layer, integrating the local friction coefficient on [0,L], as: Calculate the total force acting on the plate. The drag force induced on both sides of plate is: Fp = C H L pV.
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Related Book For
Fundamentals Of Momentum Heat And Mass Transfer
ISBN: 9781118947463
6th Edition
Authors: James Welty, Gregory L. Rorrer, David G. Foster
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