Unsteady Free Convection Flow of a Nanofluid Over a Moving Vertical Plate with Constant Heat and Mass Flux

Abstract

An analysis is executed to study the unsteady free convection flow of a nanofluid over a moving vertical plate in the presence of heat and mass flux. Heat and mass transfer effects in the nano fluid are taken into account. The governing partial non-linear differential equations associated with boundary conditions are transformed by dimensionless quantities into ordinary differential equations. The Laplace transform method is used to get the solution of the non-dimensional linear boundary layer equations. Calculations are made on the different kinds of parameter values that describe the flow problem and flow characteristics. The effects of different dimensionless parameters such as Prandtl, Grashof, Schmidt numbers and time on velocity, temperature and concentration are obtained in the respective boundary layers. The results were influenced by many features of nanoparticles, such as size, kind of nanoparticles, and base fluid temperature, which influenced the results. The nanofluids which contain nanoparticles of silver, copper, aluminium oxide, and titanium oxide using water as the base fluid are being investigated. Also, skin friction is discussed through tables.