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A Study on Heat Transfer Enhancement through Various Nanofluids in a Square Cavity with Localized Heating

Sheikh Hassan1, Didarul Ahasan Redwan1, Md. Mamun Molla1,2,*, Sharaban Thohura3, M. Abu Taher4, Sadia Siddiqa5
1 Department of Mathematics and Physics, North South University, Dhaka, Bangladesh
2 Center for Applied and Scientific Computing (CASC), North South University, Dhaka, Bangladesh
3 Department of Mathematics, Jagannath University, Dhaka, Bangladesh
4 Department of Mathematics, Dhaka University of Engineering and Technology, Gazipur, Bangladesh
5 Department of Mathematics, COMSAT University Islamabad, Attock Campus, Attock, Pakistan
* Corresponding Author: Md. Mamun Molla. Email:

Energy Engineering 2021, 118(6), 1659-1679.

Received 28 May 2021; Accepted 02 August 2021; Issue published 10 September 2021


A two-dimensional (2D) laminar flow of nanofluids confined within a square cavity having localized heat source at the bottom wall has been investigated. The governing Navier–Stokes and energy equations have been non dimensionalized using the appropriate non dimensional variables and then numerically solved using finite volume method. The flow was controlled by a range of parameters such as Rayleigh number, length of heat source and nanoparticle volume fraction. The numerical results are represented in terms of isotherms, streamlines, velocity and temperature distribution as well as the local and average rate of heat transfer. A comparative study has been conducted for two different base fluids, ethylene glycol and water as well as for two different solids and . It is found that the ethylene glycol-based nanofluid is superior to the water-based nanofluid for heat transfer enhancement.


Nanofluids; finite volume method; heat transfer enhancement; localized heating

Cite This Article

Hassan, S., Redwan, D. A., Molla, M. M., Thohura, S., Taher, M. A. et al. (2021). A Study on Heat Transfer Enhancement through Various Nanofluids in a Square Cavity with Localized Heating. Energy Engineering, 118(6), 1659–1679.

This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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