Topology is a natural mathematical tool for quantifying complex structures. In many applications, such as, for example, in the context of phase-field models in materials science, the structures of interest arise as subor superlevel sets of continuous functions, i.e., as nodal domains. From a computational point of view, any attempt at constructing a truthful representation of the topology of no...

Experimental study was conducted to determine the effect of velocity axial fan, outlet vent height, position, area, and aspect ratio (h/w) ventilated enclosure on convection heat transfer. Rectangular wooden having top front transparent wall made up Perspex for visualization, internal physical dimensions box were 200 mm × 400 mm. Inlet at bottom while vents side wall. Electrically heated cylind...

In this experimental based research work, the performance of Thermal Energy Storage System (TESS) during charging (melting) and discharging (solidification) processes were studied under varying conditions. The results from the CFD simulations for these conditions were published earlier. Here, the experimental results had been discussed. Paraffin wax concentration was varied to form the TESS. Al...

Complete partitioning wilb boneyoomb-Iike struetuIes bas previously been proposed to reduce heat transfer by natural convection. at the expense of direct oonduction through the Struet\I.fe. in Ihe thin rectangular enclosures used for solar colleclors. 11tis paper presents the results of a sludy of the use of partial ballles for this purpose. 1be heat transfer rate was measured in glycerol using...

The effect of utilizing superhydrophobic walls on improving the convective heat transfer in a rectangular heatsink has been studied numerically in this paper. The vertical walls were kept at isothermal hot-and-cold temperatures and horizontal walls were insulated. The boundary condition on the walls was: no-slip for regular, and slip (with slip length of 500 µm) for superhydrophobic walls. By c...

The natural convection in differentially heated rectangular cavities with a fin attached to the cold wall was investigated numerically. The top and the bottom horizontal walls of the cavities were insulated while their left and the right vertical walls were maintained at a constant temperature Th and Tc, respectively with Th > Tc. The governing equations written in terms of the primitive variab...

In this study, cooling of a hot obstacle in a rectangular cavity filled with water-CuO nanolfuid has been examined numerically. This cavity has an inlet and outlet and the cold nanofuid comes from the left side of the cavity and after cooling the hot obstacle, it goes out from the opposite site. All of the walls are insulated, and the SIMPLER algorithm has been employed for solving the governin...