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Chin. Phys. B, 2014, Vol. 23(4): 044702    DOI: 10.1088/1674-1056/23/4/044702
ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS Prev   Next  

Boundary layer flow and heat transfer of a Casson fluid past a symmetric porous wedge with surface heat flux

Swati Mukhopadhyay, Iswar Chandra Mandal
Department of Mathematics, The University of Burdwan, Burdwan-713104, W. B., India
Abstract  The aim of this paper is to investigate numerically the boundary layer forced convection flow of a Casson fluid past a symmetric porous wedge. Similarity transformations are used to convert the governing partial differential equations into ordinary ones. With the help of the shooting method, the reduced equations are then solved numerically. Comparisons are made with the previously published results in some special cases and they are found to be in excellent agreement with each other. The results obtained in this study are illustrated graphically and discussed in detail. The velocity is found to increase with an increasing Falkner-Skan exponent whereas the temperature decreases. With the rise of the Casson fluid parameter, the fluid velocity increases but the temperature is found to decrease in this case. Fluid velocity is suppressed with the increase of suction. The skin friction decreases with the increasing value of Casson fluid parameter. It is found that the temperature decreases as the Prandtl number increases and thermal boundary layer thickness decreases with the increasing value of Prandtl number. A significant finding of this investigation is that flow separation can be controlled by increasing the value of the Casson fluid parameter as well as by increasing the amount of suction.
Keywords:  symmetric wedge      Casson fluid      heat flux      suction/blowing  
Received:  23 May 2013      Revised:  14 July 2013      Accepted manuscript online: 
PACS:  47.15.Cb (Laminar boundary layers)  
  47.50.-d (Non-Newtonian fluid flows)  
  44.20.+b (Boundary layer heat flow)  
Corresponding Authors:  Swati Mukhopadhyay, Iswar Chandra Mandal     E-mail:  swati_bumath@yahoo.co.in;iswar.chandra2010@gmail.com
About author:  47.15.Cb; 47.50.-d; 44.20.+b

Cite this article: 

Swati Mukhopadhyay, Iswar Chandra Mandal Boundary layer flow and heat transfer of a Casson fluid past a symmetric porous wedge with surface heat flux 2014 Chin. Phys. B 23 044702

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