Theodore von Kármán in 1930 theorized that turbulentshear could be represented by τturb = ε du/dy, whereε= ρκ2y2|du/dy| is called the mixing-length eddy viscosityand κ ≈ 0.41 is Kármán’s dimensionless mixing-lengthconstant [2, 3]. Assuming that τturb ≈ τw near the wall,show that this expression can be integrated to yield thelogarithmic overlap la).

Theodore von Kármán in 1930 theorized that turbulentshear could be represented by τturb = ε du/dy, whereε= ρκ2y2|du/dy| is called the mixing-length eddy viscosityand κ ≈ 0.41 is Kármán’s dimensionless mixing-lengthconstant [2, 3]. Assuming that τturb ≈ τw near the wall,show that this expression can be integrated to yield thelogarithmic overlap la).

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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