eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences June, 2017 29 6 132 141 http://dx.doi.org/10.22147/jusps-B/290602 815 article ATUL KUMAR SINGH 1 PRATIBHA AGNIHOTRI (pratibha.mishra003@gmail.com) 2 N. P. SINGH 3 Department of mathematics, V. S. S. D. College, Kanpur-208002 (INDIA) Department of mathematics, H. B. T. University, Kanpur-208002 (INDIA) Department of mathematics, C. L. Jain (P.G.) College, Firozabad-283203 (INDIA) <p style="text-align: justify;">Unsteady two-dimensional laminar radiative convection flow of an incompressible, electrically conducting micropolar fluid past a moving semi-infinite vertical porous plate in the presence of magnetic field is studied. The effects of material parameters on the velocity and temperature fields are investigated. The Rosseland approximation is used to describe the radiative heat flux in the energy equation. The micropolar fluid is considered to be gray, absorbing-emitting but non-scattering optically thick medium. Numerical results of velocity field and temperature distribution are discussed with the help of figures, while skin-friction and rate of heat transfer are discussed by the use of tables. It is observed that when radiation parameter increases, the velocity increases and temperature decreases, whereas an increase in Grashof number or magnetic parameter decreases the velocity.</p> https://ultraphysicalsciences.org/paper/815/ convection flow incompressible magnetic field MSC(2010) : 76E06, 76Dxx, 76E25