Numerical simulation of mixed convection in a lid-driven trapezoidal cavity with flexible bottom wall and filled with a hybrid nanofluid
Mechanical Engineering Department, College of Engineering and Petroleum, Kuwait University, 13060, Safat, Kuwait
2 Department of Mathematics, Babeş-Bolyai University, 400084, Cluj-Napoca, Romania
Accepted: 23 March 2021
Published online: 26 May 2021
Mixed convection in a lid-driven trapezoidal cavity with flexible bottom wall and filled with a hybrid nanofluid is analyzed numerically in this study. Hybrid nanofluid that is a combination of Al2O3-Cu/Water is employed in this investigation. Finite element analysis is utilized in this study using the fluid–structure-interface Multiphysics of COMSOL. The results presented in this investigation showed that both Reynolds number and volume fraction of nanoparticles significantly affect flow and heat transfer characteristics inside the cavity. The results revealed that FSI model has more profound effect on the heat transfer compared with rigid wall model. Further, the present results showed that FSI was more feasible to enhance heat transfer compared with the addition of nanoparticles. This study confirms the promising applications of FSI model in enhancing heat transfer characteristics.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021