The influence of cross effects on the characteristics of heat and mass transfer in the conditions of conjugate natural convection

Mathematical modeling of nonstationary conjugate heat and mass transfer is carried out with regard to Soret and Dufour effects in an enclosure with heat-conducting impermeable walls of finite thickness with local heat and mass sources under convective-radiative heat exchange with the environment. The study is based on the two-field method. Temperature, concentration, and stream function distributions in the object analyzed are obtained over a wide range of changes of governing parameters.