Heat transfer augmentation of a quasi-two-dimensional MHD duct flow via electrically driven vortices

Ahmad H. A. Hamid, Wisam K. Hussam, Gregory J. Sheard

Research output: Contribution to journalArticleResearchpeer-review

10 Citations (Scopus)

Abstract

The fluid dynamics and heat transfer characteristics of magnetohydrodynamic duct flow often degrade the laminarization caused by the magnetic field. The present work evaluates the performance of a system featuring alternating current injection from a point electrode as a vortex promoter for enhancement of the thermal-hydraulic characteristics. It is found that the vortices generated by the current injection alone generally induce a greater thermal-hydraulic performance with a significantly smaller additional pressure loss than configurations featuring a physical obstacle. A maximum overall efficiency index of 1.83 was recorded within the parameter space investigated.

Original languageEnglish
Pages (from-to)847-869
Number of pages23
JournalNumerical Heat Transfer, Part A: Applications
Volume70
Issue number8
DOIs
Publication statusPublished - 17 Oct 2016

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