An exact solution on unsteady MHD free convection chemically reacting silver nanofluid flow past an exponentially accelerated vertical plate through porous medium

• Published in: IOP conference series. Materials Science and Engineering 2017-11, Vol.263 (6), p.62018
• Main Authors: Kumaresan, E, Vijaya Kumar, A G, Rushi Kumar, B
• Format: Article
• Language: English
• Subjects: Boundary conditions; Boundary layer flow; Chemical reactions; Coefficient of friction; Computational fluid dynamics; Exact solutions; Fluid flow; Free convection; Graphical representations; Heat generation; Heat transfer; Mass transfer; Nanofluids; Nanoparticles; Partial differential equations; Porous media; Radiation; Radiation absorption; Skin friction; Thermal conductivity; Thermal radiation
• ISSN: 1757-8981; 1757-899X
• DOI: 10.1088/1757-899X/263/6/062018

This article studies, an exact solution of unsteady MHD free convection boundary-layer flow of a silver nanofluid past an exponentially accelerated moving vertical plate through aporous medium in the presence of thermal radiation, transverse applied amagnetic field, radiation absorption and Heat generation or absorption with chemical reaction are investigated theoretically. We consider nanofluids contain spherical shaped nanoparticle of silverwith a nanoparticle volume concentration range smaller than or equal to 0.04. This phenomenon is modeled in the form of partial differential equations with initial boundary conditions. Some suitable dimensional variables are introduced. The corresponding dimensionless equations with boundary conditions are solved by using Laplace transform technique. The exact solutions for velocity, energy, and species are obtained, also the corresponding numerical values of nanofluid velocity, temperature and concentration profiles are represented graphically. The expressions for skin friction coefficient, the rate of heat transfer and mass transfer are derived. The present study finds applications involving heat transfer, enhancement of thermal conductivity and other applications like transportation, industrial cooling applications, heating buildings and reducing pollution, energy applications and solar absorption. The effect of heat transfer is found to be more pronounced in a silver-water nanofluid than in the other nanofluids.