1. A liquid film of thickness H flows down an inclined plane due to gravity. The plane is maintained at uniform temperature and the free film surface is insulated. Assume incompressible laminar flow and neglect axial variation of velocity and temperature and end effects. (a) Show that the axial velocity is given by PgH? - sin O 1 y² U = y Н 2 Н2 (b)Taking into consideration dissipation, determine the heat flux at the inclined plane.

1. A liquid film of thickness H flows down an inclined plane due to gravity. The plane is maintained at uniform temperature and the free film surface is insulated. Assume incompressible laminar flow and neglect axial variation of velocity and temperature and end effects. (a) Show that the axial velocity is given by PgH? - sin O 1 y² U = y Н 2 Н2 (b)Taking into consideration dissipation, determine the heat flux at the inclined plane.

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 5.54P

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