Interaction effects analysis between an external air flow and a finned surface

The aim of the present work is related to interaction effect analysis between an external airflow and an enclosure with finned surfaces at variable surface temperature using numerical simulation. The mathematical modelling of the problem is achieved starting from conservative balance equations in laminar external airflow around the finned surface. Hydrodynamic as well as thermal aspects of the airflow were analyzed by solving the governing equations numerically using the finite volume method with adequate boundary conditions. The Rayleigh numbers considered in the study are equal to 10³ and 10⁶, and the Prandtl number is equal to 0.7. The presented results are related to the temperature and velocity distributions around the finned surface versus fins geometrical parameters and their spacing. Good agreement is observed between the obtained results and the benchmark solutions of De Vahl Davis and others.