M. Si Abdallah1, B. Zeghmati2
FDMP-Fluid Dynamics & Materials Processing, Vol.10, No.2, pp. 261-277, 2014, DOI:10.3970/fdmp.2014.010.261
Abstract In the present work, a numerical analysis is performed of the combined effects of (opposing) thermal and solutal buoyancy in the presence of a wavy (vertical) surface. The boundary layer equations and related boundary conditions are discretized using a finite volume scheme and solved numerically using a Gauss-Seidel algorithm. The influence of the wavy geometry (in terms of related wavelength L and amplitude a) and the buoyancy ratio N on the local Nusselt and Sherwood numbers and on the skin-friction coefficient are studied in detail. Results show that when Pr < Sc, negative values of the buoyancy parameter, N tend… More >
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