Heat transfer augmentation through engine oil-based hybrid nanofluid inside a trapezoid cavity

  • Muhammad Awais Department of Mechanical Engineering, Quaid-e-Awam University of Engineering, Science and Technology, Larkana 77150, Sindh Pakistan
  • Feroz Ahmed Soomro Department of Mathematics, Xiamen University Malaysia, Sepang 43900, Selangor Malaysia
  • Shreen El-Sapa Department of Mathematical Sciences, College of Science, Princess Nourah Bint Abdulrahman University, P. O. Box 84428, Riyadh 11671, Saudi Arabia
  • Rahim Bux Khokhar Department of Basic Science and Related Studies, Mehran University of Engineering and Technology, Jamshoro 76062, Sindh Pakistan


Heat transfer occurs as a result of density differences caused by temperature changes. It has several industrial applications. To improve performance, one must investigate the heat transfer behaviour of the working fluid. Hence, the purpose of this work is to report a heat transfer analysis of a partially heated trapezoid cavity filled with a hybrid nanofluid. The temperature conditions of the cavity are such that the bottom boundary is partially heated, inclined side boundaries are kept at a lower temperature, and the upper boundary is kept adiabatic. A trapezoidal shape heated obstacle is considered in the cavity’s centre. The heat transfer and flow take place inside the cavity due to density variation. The mechanism is regulated by mass, momentum, and energy conservation, as well as related boundary constraints. The solutions are determined by the use of a numerical technique known as the Finite Element Method after the governing equations are transformed into non-dimensional form, which brings up physical parameters affecting the heat transfer and flow. The initial study is performed for three types of nanofluids with silver 𝐴𝑔 and magnesium oxide π‘€π‘”π‘œ nanoparticles inside water 𝐻2𝑂, kerosene 𝐾𝑒, and engine oil 𝐸𝑂. The study revealed that the engine oil-based hybrid nanofluid produced an increased heat transfer rate. Simulation is performed using engine-based hybrid nanofluid with the range of physical parameters, such as Rayleigh number π‘…π‘Ž (105β‰€π‘…π‘Žβ‰€107), Hartmann number π»π‘Ž (0β‰€π»π‘Žβ‰€100) and nanoparticles volume fraction πœ™ (0β‰€πœ™β‰€0.2). It is found that the heat transfer rate is enhanced by increasing the fraction of nanoparticles in the base fluid. Moreover, imposition of magnetic field has reverse impact on the fluid movement.

Jan 1, 2024
How to Cite
AWAIS, Muhammad et al. Heat transfer augmentation through engine oil-based hybrid nanofluid inside a trapezoid cavity. Mehran University Research Journal of Engineering and Technology, [S.l.], v. 43, n. 1, p. 24-33, jan. 2024. ISSN 2413-7219. Available at: <https://publications.muet.edu.pk/index.php/muetrj/article/view/2910>. Date accessed: 27 feb. 2024. doi: http://dx.doi.org/10.22581/muet1982.2401.2910.
This is an open Access Article published by Mehran University of Engineering and Technolgy, Jamshoro under CCBY 4.0 International License