ANALYSIS OF A NON-THERMAL EQUILIBRIUM FLUID FLOW IN A CONCENTRIC TUBE ANNULUS FILLED WITH A POROUS MEDIUM

摘要

The transient response of a concentric tube annulus filled with a porous medium to a non-thermal equilibrium forced convective flow of incompressible fluid through it is analyzed. A two energy equation model is employed to simulate the temperature difference between the fluid and solid phases. Utilizing the perturbation technique, an analytical solution for the problem is obtained, It is shown that the temperature difference between the fluid and solid phases forms a wave localized in space and propagating from the fluid inlet boundary in the direction of the flow. [References: 14]