On diffusion of chemically reactive species in convective flow along a vertical cylinder

The numerical solution of transient natural convection flow over a vertical cylinder under the combined buoyancy effects of heat and mass transfer alo ng with chemical reaction is presented. The governing boundary layer equati ons for the above flow problem of first order homogeneous chemical reaction are set up and non-dimensionalised. An implicit finite difference method i s used to solve the unsteady, non-linear, and coupled governing equations. Numerical results are presented for various parameters. The unsteady veloci ty, temperature, concentration profiles, local and average skin-friction, N usselt number and Sherwood number are shown graphically and are discussed f or both generative and destructive reaction. (C) 2000 Elsevier Science S.A. All rights reserved.