Riga – Plate flow of γ Al 2 O 3 -water/ethylene glycol with effective Prandtl number impacts

N. Vishnu Ganesh, Qasem M. Al-Mdallal, Sara Al Fahel, Shymaa Dadoa

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

In many industrial processes, the cooling process can be improved by varying the flow geometry or changing the additives in the working fluid. The present work concentrates on the flow of γ Al 2 O 3 –Water/Ethylene Glycol over a Gailitis and Lielausis device with an effective Prandtl number for the first time. The thermal transport aspects of electro-MHD boundary layer flow of γ Al 2 O 3 nanofluids over a stretchable Riga plate are studied in two dimensions. The wall parallel Lorentz force is produced due to an external electric field by Riga plate to control the nanofluid flow. Mathematical models are developed with an effective Prandtl number. The no-slip and the prescribed surface temperature boundary conditions are assumed. Results are discussed using numerical results obtained by fourth order RK method with shooting technique. Special case analytical solutions are presented for both momentum and energy equations. The increasing behaviour in velocity profile and decreasing behaviours in temperature, skin friction and Nusselt number are observed with increasing modified Hartmann number. The higher modified Hartmann number leads to a sudden enhancement in the velocity profile of the nanofluid in the presence of effective Pr near the riga plate wall.

Original languageEnglish
Article numbere01651
JournalHeliyon
Volume5
Issue number5
DOIs
Publication statusPublished - May 2019

Keywords

  • Applied mathematics
  • Computational mathematics
  • Mechanical engineering

ASJC Scopus subject areas

  • General

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