Free Convection Flow of a Non-Newtonian Fluid in a Vertical Channel

Rita Choudhury; Alok Das

doi:10.14429/dsj.50.3322

Rita Choudhury Gauhati University, Guwahati
Alok Das Gauhati University, Guwahati

DOI: https://doi.org/10.14429/dsj.50.3322

Keywords: Fluid dynamics, Non Newtonian Fluid

Abstract

The steady two-dimensional free convection flow of a Walters fluid (model B') in a vertical channel one 'of whose walls is wavy, has been investigated analytically. The governing equationsof the fluid and the heat transfer have been solved subject to the relevant boundary conditions byassuming that the solution consists of two parts: a mean part and disturbance or perturbed part. Toobtain the perturbed part of the solution, the long wave approximation has been used and to solvethe mean part, a well-known approximation used by Ostrach has been utilised. The relevant flow and the heat transfer characteristics, namely the skin-friction and the rate ofheat transfer at both the wallshave been discussed in detail.

Author Biographies

Rita Choudhury, Gauhati University, Guwahati

Gauhati University, Guwahati

Alok Das, Gauhati University, Guwahati

Gauhati University, Guwahati

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