Acta Mechanica

, Volume 84, Issue 1, pp 191–199

Heat transfer to a micropolar fluid from a non-isothermal stretching sheet with suction and blowing

  • I. A. Hassanien
  • R. S. R. Gorla
Contributed Papers

DOI: 10.1007/BF01176097

Cite this article as:
Hassanien, I.A. & Gorla, R.S.R. Acta Mechanica (1990) 84: 191. doi:10.1007/BF01176097

Summary

The heat transfer from a stretching sheet to a micropolar fluid is analyzed using the theory of micropolar fluids formulated by Eringen. The governing equations for momentum, angular momentum and energy have been solved numerically. Numerical data for the friction factor and Nusselt number has been tabulated for a range of Prandtl numbers. Surface mass transfer rate and the power law constant for the wall temperature have considerable influence on the heat transfer mechanism.

Nomenclature

Ec

Eckert number

f

dimensionless velocity function

g

dimensionless microrotation

G, N1

dimensionless material parameters

j

microinertia per unit mass

K

material coefficient

N

angular velocity

Nu

Nusselt number

Pr

Prandtl number

Re

Reynolds number

T

temperature

u

surface velocity

v

velocity iny-direction

Us

surface velocity

x

distance along the surface

y

distance normal to the surface

μ

viscosity coefficient

ϱ

density of the fluid

σ

dimensionless temperature

γ

power law exponent

Subscripts

ω

conditions at the surface

conditions far away from the surface

Copyright information

© Springer-Verlag 1990

Authors and Affiliations

  • I. A. Hassanien
    • 1
  • R. S. R. Gorla
    • 1
  1. 1.Department of Mechanical EngineeringCleveland State UniversityClevelandUSA
  2. 2.Assiut UniversityEgypt