Which of the following statement is TRUE? Large-scale turbulentmotion is roughly dependent of viscosity. In other words, at high Reynolds numbers, viscous forces, which contribute to flow stability, are significant compared to inertial forces that contribute to flow instability. (B) Velocity profile of Newtonian fluids in laminar flow is flatter than that in turbulent flow Flow far from the surface of a solid object is inviscid. Effects of viscosity are manifest only in a thin layer near the surface where steep velocity gradients occur (D) Flow inside an eddy is turbulent because of its large size. E) Average fluid velocity of Newtonian fluids in laminar flow inside a circular pipe is twice the maximum fluid velocity

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
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Author:Kreith, Frank; Manglik, Raj M.
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Chapter7: Forced Convection Inside Tubes And Ducts
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Problem 7.35P
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Which of the following statement is TRUE?
Large-scale turbulentmotion is roughly dependent of viscosity. In other words, at high Reynolds numbers, viscous
(A)
forces, which contribute to flow stability, are significant compared to inertial forces that contribute to flow instability.
flatter than that in turbulent flow
(B) Velocity profile of Newtonian fluids in laminar flow
Flow far from the surface of a solid object is inviscid. Effects of viscosity are manifest only in a thin layer near the
surface where steep velocity gradients occur
(D) Flow inside an eddy is turbulent because of its large size.
E) Average fluid velocity of Newtonian fluids in laminar flow inside a circular pipe is twice the maximum fluid velocity
Transcribed Image Text:Which of the following statement is TRUE? Large-scale turbulentmotion is roughly dependent of viscosity. In other words, at high Reynolds numbers, viscous (A) forces, which contribute to flow stability, are significant compared to inertial forces that contribute to flow instability. flatter than that in turbulent flow (B) Velocity profile of Newtonian fluids in laminar flow Flow far from the surface of a solid object is inviscid. Effects of viscosity are manifest only in a thin layer near the surface where steep velocity gradients occur (D) Flow inside an eddy is turbulent because of its large size. E) Average fluid velocity of Newtonian fluids in laminar flow inside a circular pipe is twice the maximum fluid velocity
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