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ted by the simple linear expression, u = Uy/ displacement thickness and momentum thic e values of 8/8 and 8/8 to the values of 8 ♪

ted by the simple linear expression, u = Uy/ displacement thickness and momentum thic e values of 8/8 and 8/8 to the values of 8 ♪

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter5: Analysis Of Convection Heat Transfer
Section: Chapter Questions
Problem 5.24P: Engine oil at 100C flows over and parallel to a flat surface at a velocity of 3 m/s. Calculate the...
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10-97 The streamwise velocity component of a steady, incompressible, laminar, flat plate boundary layer of boundary layer thickness 8 is approximated by the simple linear expression, u = Uy/8 for y<8, and u = U for y> 8 (Fig. P10-97). Generate expressions for displacement thickness and momentum thickness as functions of 8, based on this linear approximation. Compare the approximate values of 8/8 and 8/8 to the values of 8*/8 and 9/8 obtained from the Blasius solution. Answers: 0.500, 0.167 000) = V (10-97 provided as context for 10-98 only)
Transcribed Image Text:10-97 The streamwise velocity component of a steady, incompressible, laminar, flat plate boundary layer of boundary layer thickness 8 is approximated by the simple linear expression, u = Uy/8 for y<8, and u = U for y> 8 (Fig. P10-97). Generate expressions for displacement thickness and momentum thickness as functions of 8, based on this linear approximation. Compare the approximate values of 8/8 and 8/8 to the values of 8*/8 and 9/8 obtained from the Blasius solution. Answers: 0.500, 0.167 000) = V (10-97 provided as context for 10-98 only)
Problem 5: 10-103 Air at 30°C flows at a uniform speed of 30.0 m/s along a smooth flat plate. Calculate the approximate x-location along the plate where the boundary layer begins the transition process toward turbulence. At approximately what x-location along the plate is the boundary layer likely to be fully turbulent? Answers: 5 to 6 cm, 1 to 2 m
Transcribed Image Text:Problem 5: 10-103 Air at 30°C flows at a uniform speed of 30.0 m/s along a smooth flat plate. Calculate the approximate x-location along the plate where the boundary layer begins the transition process toward turbulence. At approximately what x-location along the plate is the boundary layer likely to be fully turbulent? Answers: 5 to 6 cm, 1 to 2 m
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