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Barddhaman, India

The University of Burdwan is a public university located in Bardhaman, West Bengal, India. It was established by the West Bengal government as a teaching and affiliating university on 15 June 1960 with six graduate departments and thirty undergraduate colleges spread over five districts that come under the jurisdiction of the university. The jurisdiction covers the districts of Burdwan, Birbhum, Bankura, and Hooghly . The main campus of the university is of 398 acres .The university offers 30 graduate programmes. There are 139 affiliated colleges .The university has been awarded five-star status by the NAAC. Wikipedia.


Mukhopadhyay S.,University of Burdwan
Nuclear Engineering and Design | Year: 2011

This paper investigates the unsteady mixed convective boundary layer flow and heat transfer over a porous stretching vertical surface in presence of slip. Similarity solutions for the transformed governing equations are obtained and the reduced equations are then solved numerically. With increasing values of the unsteadiness parameter, fluid velocity and the temperature are found to decrease in both the presence and absence of slip at the boundary. Fluid velocity decreases due to increasing values of the velocity slip parameter resulting an increase in the temperature field. Skin-friction decreases with the velocity slip parameter whereas it increases with unsteadiness parameter. The rate of heat transfer decreases with the velocity slip parameter while increases with unsteadiness parameter. Same feature is also noticed for thermal slip parameter. Effects of increasing mixed convection parameter on the velocity boundary layer is to increase the velocity field and the temperature decreases in this case. © 2011 Elsevier B.V. All rights reserved. Source


Bhattacharyya K.,University of Burdwan
International Communications in Heat and Mass Transfer | Year: 2011

In this paper, an analysis is presented to study dual nature of solution of mass transfer with first order chemical reaction in boundary layer stagnation-point flow over a stretching/shrinking sheet. The governing equations are transformed into a set of self-similar ordinary differential equations by similarity transformations. The transformed equations are solved numerically using very efficient shooting method. The study reveals that the dual solutions of velocity and concentration exist for certain values of velocity ratio parameter (the ratio of stretching/shrinking rate and straining rate). The concentration boundary layer thickness decreases with increasing values of Schmidt number and reaction-rate parameter for both solutions. © 2011 Elsevier Ltd. Source


Mukhopadhyay S.,University of Burdwan
Journal of Petroleum Science and Engineering | Year: 2012

This paper presents an axi-symmetric laminar boundary layer mixed convection flow of a viscous incompressible fluid and heat transfer towards a stretching cylinder embedded in porous medium. Variable surface temperature is assumed. The partial differential equations corresponding to the momentum equations are converted into highly non-linear ordinary differential equations with the help of similarity transformations. Numerical solutions of these equations are obtained by shooting method. It is found that the velocity decreases but the temperature increases with increasing permeability parameter. With the increasing values of mixed convection parameter, velocity is found to increase for buoyancy aided flow but opposite nature is noted for buoyancy opposed flow. The skin friction as well as the heat transfer rate at the surface is larger for a cylinder compared to a flat plate. Thermal boundary layer thickness decreases with increasing Prandtl number. © 2012 Elsevier B.V. Source


Bhattacharyya K.,University of Burdwan
Chinese Physics Letters | Year: 2011

An analysis is made to study boundary layer flow and heat transfer over an exponentially shrinking sheet. Using similarity transformations in exponential form, the governing boundary layer equations are transformed into self-similar nonlinear ordinary differential equations, which are then solved numerically using a very efficient shooting method. The analysis reveals the conditions for the existence of steady boundary layer flow due to exponential shrinking of the sheet and it is found that when the mass suction parameter exceeds a certain critical value, steady flow is possible. The dual solutions for velocity and temperature distributions are obtained. With increasing values of the mass suction parameter, the skin friction coefficient increases for the first solution and decreases for the second solution. © 2011 Chinese Physical Society and IOP Publishing Ltd. Source


Bhattacharyya K.,University of Burdwan
Chinese Physics Letters | Year: 2011

An analysis is made to study the dual nature of solution of unsteady stagnation-point flow due to a shrinking sheet. Using similarity transformations, the governing boundary layer equations are transformed into the self-similar nonlinear ordinary differential equations. The transformed equations are solved numerically using a very efficient shooting method. The study reveals the conditions of existence, uniqueness and non-existence of unsteady similarity solution. The dual solutions for velocity distribution exist for certain values of velocity ratio parameter (c/a), and the increment in the unsteadiness parameter A increases the range of c/a where solution exists. Also, with increasing A, the skin friction coefficient increases for the first solution and decreases for the second. © 2011 Chinese Physical Society and IOP Publishing Ltd. Source

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