CONVECTIVE-TRANSPORT ABOUT CYLINDER WITH SURFACE-REACTION OF ARBITRARY ORDER

Heat and mass transfer from a circular cylinder exposed to a convectiv e environment with a surface reaction of arbitrary order is studied ba sed on the stream function-vorticity formulation. A hybrid numerical s cheme combining the Fourier spectral method in the angular direction a nd the spectral element method in the radial direction is used to solv e the conservation equations along with an influence matrix technique to resolve the vorticity boundary conditions. Results showing the temp oral evolution of the flow temperature and concentration fields are pr esented for cases with and without vortex shedding with the latter tri ggered by the cylinder's rotation. A parametric study is also performe d to examine the influence of the Reynolds number, Grashof number, Pra ndtl number, Schmidt number, Damkohler number, the reaction order, the flow alignment, the heat of reaction, the rotational velocity and the flow pulsation on the effectiveness of the reaction surface. With the exception rotation, they all exhibit strong dependence.