Open AccessEffect of plate amplified velocity on nanoparticle migration in free convection flow due to uniform heat flux
Author(s) -
Nor Syafiqah,
Marneni Narahari
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/736/3/032020
Subject(s) - nusselt number , nanofluid , mechanics , heat flux , materials science , heat transfer , dimensionless quantity , natural convection , thermodynamics , parasitic drag , flow velocity , flow (mathematics) , physics , boundary layer , reynolds number , turbulence
The effects of the amplified velocity of the plate on nanoparticle migration and heat transfer characteristics in unsteady free convection flow have been studied with the uniform heat flux boundary condition. The governing set of partial differential equations for the non-homogeneous nanofluid model is employed. A numerically stable second-order accurate method is applied to solve the dimensionless governing equations. The numerical solutions are obtained for nanofluid velocity and temperature fields, nanoparticles displacement, skin-friction, and Nusselt number for different values of amplified velocity parameter, and shown in graphs. The results show that the amplified plate velocity decreases the nanoparticle migration slightly while it increases the average Nusselt number and skin-friction. Also, a good comparison is found between the present numerical results and available correlation results of steady-state local Nusselt number for the limiting case.