Non-linear thermal convection in a Casson fluid flow over a horizontal plate with convective boundary condition

Sachin Shaw, Ganeswar Mahanta, Precious Sibanda

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Casson fluid flow has many practical applications such as food processing, metallurgy, drilling operations and bio-engineering operations. In this paper, we study Casson fluid flow through a plate with a convective boundary condition at the surface and quantify the effects of suction/injection, velocity ratio, and Soret and Dufour effects. Firstly we used a similarity transformation to change the governing equations to ordinary differential equations which were then solved numerically. The effect of the rheological parameters on the velocity, temperature, and concentration with skin friction, and heat and mass transfer are shown graphically and discussed briefly. It is observed that the velocity of the fluid at the surface decreases with increase of the velocity ratio while the nature of the flow is in opposite characteristics. The local Nusselt number decreases with increase in the velocity ratio. Skin friction at the surface is enhanced by buoyancy ratio and Casson number. Due to injection of the fluid in the system, the mass transfer rate at the surface increases while it decreases with the velocity ratio parameter.

Original languageEnglish
Pages (from-to)1295-1304
Number of pages10
JournalAlexandria Engineering Journal
Volume55
Issue number2
DOIs
Publication statusPublished - Jun 1 2016

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Flow of fluids
Boundary conditions
Skin friction
Mass transfer
Food processing
Fluids
Metallurgy
Nusselt number
Buoyancy
Ordinary differential equations
Convection
Hot Temperature
Drilling
Heat transfer
Temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

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Non-linear thermal convection in a Casson fluid flow over a horizontal plate with convective boundary condition. / Shaw, Sachin; Mahanta, Ganeswar; Sibanda, Precious.

In: Alexandria Engineering Journal, Vol. 55, No. 2, 01.06.2016, p. 1295-1304.

Research output: Contribution to journalArticle

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