Analysis of Flow and Thermal Characteristics in a Closed Domain Containing Heat Source Sink Saturated with Zn water Nanofluids

In this work, a closed geometric space filled with Zn-water nanofluid is used to analyze the thermal characteristics of the flow caused by the presence of a heat source and a heat sink. It is discussed how the zinc particle-rich nanofluid improves heat transfer efficiency. Throughout the simulation of the present research Galerkin weighted residual based Finite element method; an appropriate numerical method is applied. The study assesses how altering the density of nanoparticles, the number of Rayleigh, and the positions of the heat source and sink affects the temperature distribution and flow pattern. The effects of the geometric parameter volume percentage of nanoparticles in the range 0.01 ≤ φ ≤ 0.1 and the natural convection parameter Rayleigh number changed as 104 ≤ Ra ≤107 on the flow and thermal field as well as the rate of heat transfer were analyzed. Obtained results for flow and temperature field are exposed by the streamlines and isotherms. For better understanding of flow visualization and temperature behaviour velocity profiles, temperature profiles and temperature gradient magnitude profiles are also disclosed. The primary findings of the current study are displayed both tabularly and graphically. The findings demonstrate that Zn-water nanofluid greatly enhances heat transmission and is a viable option for thermal control. Advanced thermal management systems, electronic cooling, and other technical applications can be benefited greatly from this kind of study.