EMPIRICAL CORRELATION EQUATIONS FOR HEAT-TRANSFER BY FORCED-CONVECTION FROM CYLINDERS EMBEDDED IN POROUS-MEDIA THAT ACCOUNT FOR THE WALL EFFECT AND DISPERSION

Empirical correlation equations for the Nusselt number have been determined that represent an extensive body of new and previously published experimental data for the geometry under consideration with a level of accuracy that is deemed to be sufficient to render the correlations acceptable for design purposes. The equations cover the Darcy, Forchheimer and turbulent regimes of flow. The empirical correlation equations are based upon a hypothesis that regards the flow in a porous medium to be the superposition of a 'fine' component upon a 'coarse' component and takes into account the wall effect and dispersion.