Natural convective boundary-layer flow of a nanofluid past a vertical plate

Double-diffusive natural convective boundary-layer flow of a nanofluid past a vertical plate

This work is focused on the numerical solution of steady natural convection boundary-layer flow of a nanofluid consisting of a pure fluid with nanoparticles along a permeable vertical plate in the presence of magnetic field, heat generation or absorption, and suction or injection effects The model used for the nanofluid incorporates the effects of Brownian motion and thermophoresis The governing boundary-layer equations of the problem are formulated and transformed into a non-similar form The obtained equations are then solved numerically by an efficient, iterative, tri-diagonal, implicit finite-difference method Comparisons with previously published work are performed and are found to be in excellent agreement Representative results for the longitudinal velocity, temperature, and nanoparticle volume fraction profiles as well as the local heat transfer rates for various values of the physical parameters are displayed in both graphical and tabular forms

Mhd free convection flow of a nanofluid past a vertical plate in the presence of heat generation or absorption effects

In this paper an analysis has been made to study heat and mass transfer in two-dimensional stagnation-point flow of an incompressible viscous fluid over a stretching vertical sheet in the presence of buoyancy force and thermal radiation. The similarity solution is used to transform the problem under consideration into a boundary value problem of nonlinear coupled ordinary differential equations containing Prandtl number, Schmidt number and Sherwood number which are solved numerically with appropriate boundary conditions for various values of the dimensionless parameters. Comparison of the present numerical results are found to be in excellent with the earlier published results under limiting cases. The effects of various physical parameters on the boundary layer velocity, temperature and concentration profiles are discussed in detail for both the cases of assisting and opposing flows. The computed values of the skin friction coefficient, local Nusselt number and Sherwood number are discussed for various values of physical parameters. The tabulated results show that the effect of radiation is to increase skin friction coefficient, local Nusselt number and Sherwood number.

Heat and mass transfer in stagnation-point flow towards a stretching surface in the presence of buoyancy force and thermal radiation

Hydromagnetic transport phenomena from a stretching or shrinking nonlinear nanomaterial sheet with Navier slip and convective heating: A model for bio-nano-materials processing

K. R. Khair

Papers

Mass Transfer to Natural Convection Boundary Layer Flow Driven by Heat Transfer