Effects of discrete heat source location on heat transfer and entropy generation of nanofluid in an open inclined L-shaped cavity

Abstract

Purpose

This paper aims to concentrate on the impacts of a discrete heat source location on heat transfer and entropy generation for a Ag-water nanofluid in an open inclined L-shaped cavity.

Design/methodology/approach

The governing partial differential equations for this study are computed by the finite volume method.

Findings

The results show that increasing the inclination angle leads to a rise in heat transfer. It is clear with the increase in the nanoparticles volume fraction that the thermal performance reduces, and it increases when the inclination angle increases.

Originality/value

Because of the continuous literature survey, the authors have not found a study that concentrates on the entropy generation in a wide variety of irregular ducts. Thus, in this paper, they present the analysis of entropy generation in an L-shaped duct experiencing a mixed convective flow with a nanofluid. The authors deal with this geometry because it is very useful in cooling systems of nuclear and chemical reactors and electronic components.

Citation

Armaghani, T., Rashad, A.M., Vahidifar, O., Mishra, S.R. and Chamkha, A.J. (2019), "Effects of discrete heat source location on heat transfer and entropy generation of nanofluid in an open inclined L-shaped cavity", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 29 No. 4, pp. 1363-1377. https://doi.org/10.1108/HFF-07-2018-0412