Flat Plate, Water. Water flows at atmospheric pressure over a flat plate at U = 5m/s. (a) At what distance x* from the leading edge will the flow become turbulent? (b) At x*, assuming laminar flow, what is the (i) boundary layer thickness 8*, (ii) the wall shear stress and (iii) the speed ratios u/U and v/U at y = 8*/2? (c) If a pitot tube, open at the top, is placed at y = 8*/2 and fills with water, what is the pitot manometer height, h (assume Pg = 0 in the boundary layer)? Ans OM: (a) x*: 10-¹ m; (b) 8*: 104 m, Tw: 10¹ Pa, u/U: 10-¹, v/U: 104; (c) h: 10¹ m.
Flat Plate, Water. Water flows at atmospheric pressure over a flat plate at U = 5m/s. (a) At what distance x* from the leading edge will the flow become turbulent? (b) At x*, assuming laminar flow, what is the (i) boundary layer thickness 8*, (ii) the wall shear stress and (iii) the speed ratios u/U and v/U at y = 8*/2? (c) If a pitot tube, open at the top, is placed at y = 8*/2 and fills with water, what is the pitot manometer height, h (assume Pg = 0 in the boundary layer)? Ans OM: (a) x*: 10-¹ m; (b) 8*: 104 m, Tw: 10¹ Pa, u/U: 10-¹, v/U: 104; (c) h: 10¹ m.
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.
Chapter6: Forced Convection Over Exterior Surfaces
Section: Chapter Questions
Problem 6.34P
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