Casson fluid flow over an unsteady stretching surface

By Swati Mukhopadhyay, P. R. De, K. Bhattacharyya, G. Layek. 2013

358 citations recorded by the source corpus.

Abstract The unsteady two-dimensional flow of a non-Newtonian fluid over a stretching surface having a prescribed surface temperature is investigated. The Casson fluid model is used to characterise the non-Newtonian fluid behaviour. Similarity transformations are employed to transform the governing partial differential equations into ordinary differential equations. The transformed equations are then solved numerically by shooting method. Exact solution corresponding to momentum equation for steady case is obtained. The flow features and heat transfer characteristics for different values of the governing parameters viz. unsteadiness parameter, Casson parameter and Prandtl number are analysed and discussed in detail. Fluid velocity initially decreases with increasing unsteadiness parameter and temperature decreases significantly due to unsteadiness. The effect of increasing values of the Casson parameter is to suppress the velocity field. But the temperature is enhanced with increasing Casson parameter.

Subfields: Biomedical Engineering, Computational Mechanics, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/811b42ed2ae8c703b621bbbd6a8fd6ed95ce1724

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In Biomedical Engineering

In Computational Mechanics

In Mechanical Engineering

Citations in the corpus

Unsteady mhd free convection flow of casson fluid past over an oscillating vertical plate embedded in a porous medium (2015, background): “[28] also analysed the Casson fluid flow over an unsteady stretching surface followed by Pramanik [29] where he studied the Casson fluid flow and heat transfer past an exponentially porous stretching surface in the presence of thermal radiation.”
Unsteady Casson nanofluid flow over a stretching sheet with thermal radiation, convective and slip boundary conditions (2016, background): “In the studies [14,21] similar temperature profiles patterns were obtained.”
MHD effects on heat transfer over stretching sheet embedded in porous medium with variable viscosity, viscous dissipation and heat source/sink (2014, background): “[18] studied the unsteady two-dimensional flow of a non-Newtonian fluid over a stretching surface.”