Calculate the ratio of thermal-boundary-layer thickness to hydrodynamic-boundary- layer thickness for the following fluids: air at 1 atm and 20°C, water at 20°C, helium at 1 atm and 20°C, liquid ammonia at 20°C, glycerine at 20°C.

Calculate the ratio of thermal-boundary-layer thickness to hydrodynamic-boundary- layer thickness for the following fluids: air at 1 atm and 20°C, water at 20°C, helium at 1 atm and 20°C, liquid ammonia at 20°C, glycerine at 20°C.

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 5.23P

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Question

5-13 Calculate the ratio of thermal-boundary-layer thickness to hydrodynamic-boundary-
layer thickness for the following fluids: air at 1 atm and 20°C, water at 20°C, helium
at I atm and 20°C, liquid ammonia at 20°C, glycerine at 20°C.

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