WIT Press


The Effect Of Non-uniform Gravity On Mixed Convection Along A Vertical Surface

Price

Free (open access)

Paper DOI

10.2495/CMEM030691

Volume

33

Pages

10

Published

2003

Size

284.03 kb

Author(s)

A. Postelnicu

Abstract

The effect of non-uniform gravity on mixed convection along a vertical surface A. Postelnicu Department of Thermal Engineering and Fluid Mechanics, Transilvania University of Brasov, Romania. Abstract This paper considers the effect of non-uniform gravity on mixed convection along a vertical plate with an inverse-linear temperature distribution. The gravity varies with the distance from the leading edge of the isothermal plate. Two cases are taken into account: a) finite hot plate of length xo, rotating at angular speed o in a radial plane about the line x = 0 (where x is the coordinate along the plate); b) infinite cold plate, rotating at angular speed o in a radial plane with its leading edge beginning at a distance xo from the axis of rotation. A pseudo-similarity transformation in the new variables (6, q) is introduced in order to obtain a parabolic system of differential equations in non-similar form, which is solved by means of the Keller-box method. Using a non-uniform grid, concentrate

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