THERMALLY DRIVEN CONVECTION IN ENCLOSED COMPRESSIBLE FLUIDS

This paper presents a numerical scheme for the solution of unsteady ve locity and temperature fields in an enclosed compressible fluid that i s subjected to thermally induced mechanical motion. The numerical sche me includes revisions of earlier models as well as a scheme applied to the simplified form of the governing equations. The results are compa red with previous numerical results and available analytical solutions . The fluid unsteady temperature profile is also compared with recent experimental results. The suggested numerical revisions are shown to i mprove the results significantly, as verified by experimental data.