TY - JOUR TI - Free convective oscillatory flow and mass transfer past a porous plate in the presence of radiation for an optically thin fluid AU - Raptis Andreas JN - Thermal Science PY - 2011 VL - 15 IS - 3 SP - 849 EP - 857 PT - Article AB - We study the two dimensional free convective oscillatory flow and mass transfer of a viscous and optically thin gray fluid over a porous vertical plate in the presence of radiation. The governing partial differential equations have been transformed to ordinary differential equations. Numerical solutions are obtained for different values of radiation parameter, Grashof number and Schmidt number.