Mathematical simulation of unsteady heat and mass transfer in an element of electronic equipment

A complex investigation of transient mixed convection in a typical element of electronics in the presence of a local heat source under the assumption of internal mass transfer has been carried out. The mathematical model has been formulated in the context of mechanics of continua in dimensionless variables such as stream function–vorticity vector–temperature–concentration. Distributions of streamlines, temperature fields, and concentration fields reflecting the features of the analyzed process have been obtained.