Double diffusion, slips and variable diffusivity effects on combined heat mass transfer with variable viscosity via a point transformation

作者：Ferdows M^*; Uddin Md J; Khaleque Tania S

来源：Progress in Computational Fluid Dynamics, 2013, 13(1): 54-64.

DOI：10.1504/PCFD.2013.050651

• double diffusion
• point transformations
• variable diffusivity
• temperature dependent viscosity
• slip boundary conditions

The present paper investigates heat and mass transfer over a moving nano-porous plate in porous media with hydrodynamic and thermal slip boundary conditions and concentration-dependent diffusivity, taking into account the Soret and Dufour effects and temperature-dependent viscosity. The similarity representation of the system of partial differential equations of the problem is obtained via point transformation. The resulting equations are solved numerically. A representative set of results for the dimensionless velocity, the dimensionless temperature and the dimensionless concentration functions is displayed to show the influence of parameters (velocity slip parameter a, thermal slip parameter gamma, suction parameter Fw, concentration diffusivity parameter b, Prandtl number Pr, Schmidt number Sc, viscosity parameter theta(r), Soret number Sr and Dufour number D-f, Darcy parameter Da and the generation parameter Q) on them.

• 出版日期2013