Mathematical Modeling for Heat Transfer Enhancement in a Ventilated Enclosure with a Circular Heat-generating Block

In this article, mixed convection flow and heat transfer characteristics inside a ventilated enclosure have been investigated. A heat-generating circular block positioned at the centre of the enclosure. Discretization of governing equations is achieved using a finite element technique based on Galerkin weighted residuals. The computation is carried out for a wide range of pertinent parameters such as Aspect ratio and Richardson number. Numerical results are reported for the effect of above mentioned parameters on the contours of streamline and isotherm. In addition, the heat transfer rate in terms of the average Nusselt number and average temperature of the fluid in the cavity as well as drag force are presented for the mentioned parametric values. The obtained results show that the flow and thermal field are strongly influenced by the aforesaid parameters.