Assignment 13 - CHEE 3363---Fluid Mechanics Assignment 13...

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Unformatted text preview: CHEE 3363---Fluid Mechanics Assignment 13 Pro 9.3 The takeoff speed of a Boeing 757 is 260 ? . At approximately what distance will the boundary layer on the wings become turbulent? If it cruises at 850 ? at 10,000 m, at approximately what distance will the boundary layer on the wings now become turbulent? Pro 9.11 An approximation for the velocity profile in a laminar boundary layer is = 3 2 1 2 3 Does this expression satisfy boundary conditions applicable to the laminar boundary-layer velocity profile? Evaluate and . Pro 9.68 Air flows in a cylindrical duct of diameter = 150 . At section 1, the turbulent boundary layer is of thickness 1 = 10 , and the velocity in the inviscid central core is 1 = 25 ? . Further downstream, at section 2, the boundary layer is of thickness 2 = 30 . The velocity profile in the boundary layer is approximated well by the 1/7-power expression. Find the profile in the boundary layer is approximated well by the 1/7-power expression....
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This note was uploaded on 10/09/2011 for the course ENGINEERIN 3133 taught by Professor Sarkozi during the Spring '11 term at Texas A&M.

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Assignment 13 - CHEE 3363---Fluid Mechanics Assignment 13...

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