Journal of Computational Applied Mechanics

Performance Study of Partially Heated Annulus Filled with Two-Phase Nanofluid: Energy Perspective

Document Type : Research Paper

Authors

1 Department of Mechanical Engineering, Yasouj University, Yasouj, Iran.

2 Department of Mechanical Engineering, Naragh Branch, Islamic Azad University, Naragh, Iran

3 islamic azad university badroud branch

Abstract

In recent years, electrical appliances have become an integral part of human life, and efforts have been made to improve the quality and durability of electrical boards. One of the ways to improve the life of electrical boards is using cooling methods suitable for transferring the heat generated by the boards. In this paper, three different models of Case 1, Case 2, and Case 3 have been analyzed to provide an optimal model with the highest average Nusselt number. To achieve the optimal model the effect of heat source, the characteristics of hot and cold barriers and their locations on the flow field, heat transfer between two horizontal concentric cylinders with the presence of nanofluids were investigated. The results have shown that for all volume fractions, the Nusselt number increases with rising Riley number, as well as for the inner and outer cylinder, the value of the average Nusselt number increases at a constant Riley number with rising the volume fraction from 0 to 0.8%. Therefore, the highest Nusselt number occurs in volume fraction of 0.8% and Riley number of 〖10〗^5.

Keywords

Main Subjects

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Journal of Computational Applied Mechanics
Volume 55, Issue 1
January 2024
Pages 39-50
  • Receive Date: 23 September 2023
  • Revise Date: 04 October 2023
  • Accept Date: 04 October 2023