ABSTRACT
Effects of heat absorption and porosity of the medium on unsteady MHD flow past a moving vertical plate with variable wall temperature and mass diffusion in the presence of Hall current is studied here. Earlier we [5] have studied chemical reaction effect on unsteady MHD flow past an impulsively started oscillating inclined plate with variable temperature and mass diffusion in the presence of Hall current. We obtained the results which were in agreement with the desired flow phenomenon. To study further, we are changing the model by considering heat absorbing fluid, and changing the geometry of the model. Here in this paper we are taking the plate positioned vertically upward. Further, medium of the flow is taken as porous. The governing equations involved in the flow model are solved by the Laplace-transform technique. The results obtained have been analyzed with the help of graphs drawn for different parameters. The numerical values obtained for the drag at boundary have been tabulated. Here too, the results are found to be in agreement with the actual flow.
