NUMERICAL STUDY OF DOUBLE-DIFFUSIVE,
FREE CONVECTIVE FLOW PAST A MOVING
VERTICAL CYLINDER

P. Loganathan and P. Ganesan

UDC 536.25

The double-diffusive, free convective flow past a moving 
semi-infinite vertical cylinder has been studied numerically. The 
mass, momentum, energy, and species concentration equations have been 
solved by a finite-difference method using an implicit scheme of Crank-Nicolson 
type. The finite-difference scheme is unconditionally stable and accurate. 
Graphical results for the velocity, temperature, concentration, local 
and average skin friction, and Nusselt and Sherwood numbers are illustrated 
and discussed for various physical parametric values. The role of 
temperature stratification in the ambient medium has been analyzed.

@ABSTRACT = Department of Mathematics, Anna University, Chennai 600 
025, India; email: logu@annauniv.edu. Published in Inzhenerno-Fizicheskii 
Zhurnal, Vol. 79, No. 1, pp. 72-76, January-February, 2006. 
Original article submitted January 20, 2004.