International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2569

Article in Press

Combined heat and mass transfer effects in polymeric liquid between isothermal stretching disks with convective boundary conditions

M. S. Hashmia, N. Khanb and Sami Ullah Khanc*

  •  Received: 19 May 2018
  •  Accepted: 21 March 2019
A theoretical analysis is performed to examine the flow of an incompressible polymeric liquid (Maxwell fluid) between two infinite isothermal stretching disks. The convective heat and mass boundary conditions are taken into account. Further, the effects of viscous dissipation and chemical reaction are also carried out. The governing equations associated with momentum, energy and concentration profiles are reduced into set of ordinary differential equations by using dimensionless variables. Homotopy analysis method (HAM) is adopted to compute the series solution of the dimensionless problem. The convergence of obtained solution is carefully examined for appropriate set of parameters. To verify the accuracy and validity of present analysis, the solution is also computed numerically by using shooting technique. It is observed that both solutions have great agreement with each other. Several numerical computations have been performed for illustration of skin friction coefficient, local Nusselt number and local Sherwood number at lower and upper disks. It is observed that skin friction coefficient increases by increasing Deborah number and stretching ratio parameter. With increase of Frank Kamenetskii number, thermal boundary layer thickness increases at upper disk while opposite trend is noted at lower disk. The concentration profile enhanced by increasing concentration Biot number.

Keywords: Maxwell fluid, isothermal stretching disks, heat and mass transfer, convective boundary conditions, homotopy analysis method.