THE EFFECT OF MASS TRANSFER WITH MIXED CONVECTION BOUNDARY LAYER FLOW ALONG VERTICAL MOVING THIN NEEDLES WITH VARIABLE HEAT FLUX

Vandana Bisht

Department of Applied Sciences, AITS, Amrapali Group of Institutes, Haldwani, Uttarakhand, India

ABSTRACT

The study of the steady laminar mixed convection boundary layer flow of an incompressible viscous fluid, with heat and mass transfer along vertical thin needles with variable heat flux has been considered. The governing boundary layer equations are first transformed into non dimensional form and then after using similarity transformations converted into set of ordinary differential equations. The set of ordinary differential equations are solved with the help Runge-Kutta method with shooting technique. The value of skin friction coefficient and the surface temperature, wall concentration, velocity profile as well as temperature profile are obtained for different values of dimensionless parameters with m=0, which is case for a blunt nosed needle. The magnitude of velocity decreases with increasing needle size and increases with increasing local buoyancy parameter. The graphical and tabulated results are presented.

KEY-WORDS

Mixed Convection, Variable Heat Flux, Similarity Transformation, Runge-Kutta Method, Shooting Technique.

ORIGINAL SOURCE URL: https://airccse.com/adeij/papers/1116adeij03.pdf