For solid objects moving through a fluid, turbulence will occur fo Reynolds number greater than 10°. (The d in the usual Reynolds number equation now represents the length of the body). Calculate the Reynolds number for a dolphin. of length 2.0 m swimming at 6.0 m.s', and a water-beetle, of length 17 mm swimming at 0.5 m.s and state whether the water flow around the object is streamline or turbulent. (1.2 × 10' (turbulent). 8500 (laminar))

For solid objects moving through a fluid, turbulence will occur fo Reynolds number greater than 10°. (The d in the usual Reynolds number equation now represents the length of the body). Calculate the Reynolds number for a dolphin. of length 2.0 m swimming at 6.0 m.s', and a water-beetle, of length 17 mm swimming at 0.5 m.s and state whether the water flow around the object is streamline or turbulent. (1.2 × 10' (turbulent). 8500 (laminar))

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 5.6P: 5.6 A fluid flows at 5 over a wide, flat plate 15 cm long. For each from the following list,...

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5.6 A fluid flows at 5 over a wide, flat plate 15 cm long. For each from the following list, calculate the Reynolds number at the downstream end of the plate. Indicate whether the flow at that point is laminar, transition, or turbulent. Assume all fluids are at 40°C. (a) air, (b) , (c) water, (d) engine oil.
Evaluate the Nusselt number for flow over a sphere for the following conditions: D=0.15m,k=0.2W/mK, hc=102W/m2K.
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