Buoyant Marangoni convection of nanofluids in right-angled trapezoidal cavity

Abstract

The phenomena of buoyant Marangoni natural convection in a right-angled trapezoidal enclosure filled with water-based nanofluids have been studied numerically. The left vertical wall of the trapezoidal cavity is heated uniformly, the right inclined wall is cooled, and the top and bottom walls are insulated (adiabatic). The finite element method (FEM) is implemented to solve the non-dimensional governing equations. The investigation has been done for different values of parameters: the aspect ratio of the enclosure, $0.25\le$ Ar $\le 1,$ the nanoparticles volume fraction, $0\%\le \varphi \le 5\%,$ the Marangoni numbers, $0\le$ Ma_bf $\le {10}^3,$ and the Rayleigh numbers, ${10}^3\le$ Ra_bf $\le {10}^4.$

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

The authors would like to thank the Ministry of Higher Education Malaysia and University of Malaya for the financial support (IIRG006C-19IISS).