@article{Luan Nguyen Thanh_Phu Nguyen Minh_Ha Nguyen Minh_2023, title={Entropy Generation, Heat Transfer of Water Near Density Inversion Region with Relative Positions of Hot and Cold Walls: Numerical Analysis}, volume={15}, url={https://semarakilmu.com.my/journals/index.php/CFD_Letters/article/view/1410}, DOI={10.37934/cfdl.15.5.4253}, abstractNote={<p>This study investigates the entropy generation and heat transfer of water density inversion region in a square cavity with the different relative positions of hot and cold walls by numerical simulation. Mathematical models are solved using the EES (Engineering Equation Solver) program. A physical model is a 38 mm square cavity filled with water, with cold and hot wall temperatures maintained at 0<sup>o</sup>C and 10<sup>o</sup>C. Results indicated that the Nusselt number of cases 1 (cold and hot walls on both sides) is higher than case 2 (hot wall above, cold wall below) and case 3 (cold wall above, hot wall below) by 1.582 and 1.059 times, respectively. The average total generation per unit volume in case 1 increases by 1.577 times and 1.059 times, respectively, compared to cases 2 and 3, which almost correspondingly increase with heat transfer capacity. Entropy generation by fluid friction is negligible</p>}, number={5}, journal={CFD Letters}, author={Luan Nguyen Thanh and Phu Nguyen Minh and Ha Nguyen Minh}, year={2023}, month={Mar.}, pages={42–53} }