Analytical Study of Heat and Mass Transfer Enhancement in Free convection Flow with Chemical Reaction and Constant Heat Source in Nano-fluids

摘要

The problem of unsteady MHD free convection flow of nanofluids through a porous medium bounded by a moving vertical semi-infinite permeable flat plate with constant heat source through porous medium is theoretically investigated. The velocity along the plate (slip velocity) is assumed to oscillate on time with a constant frequency and the temperature and concentration are assumed to be fluctuating with time harmonically from a constant mean at the plate. The analytical solutions of the boundary layer equations are solved by using the small perturbation approximations. Two types of nanofluids, namely Cu- water and Tio2-water are used. The effects of various fluid flow and heat and mass transfer characteristics are discussed through graphs and tables.