Abstract
The steady-state two-dimensional laminar forced convection boundary layer heat transfer of various types of nanofluids over an impermeable isothermal moving flat plate is investigated. The governing partial differential equations of mass, momentum and energy conservations are transformed by using suitable similarity transformations to two nonlinear ordinary differential equations (ODEs). The resulting nonlinear ODEs are solved using the semi-analytical treatment of the homotopy perturbation method (HPM) for six types of nanoparticles, namely copper (Cu), alumina (Al2O3), titania (TiO2), copper oxide (CuO), silver (Ag) and silica (SiO2) in the water based fluid. The effects of solid nanoparticles volume fraction and nanoparticles type on the heat transfer characteristics are investigated and compared with previously published numerical results. The obtained results show that the local Nusselt number increases with the increase of the nanoparticles volume fraction.DOI: http://dx.doi.org/10.5755/j01.mech.22.6.12890
Highlights
Nanofluids, which are considered as suspensions of nanoparticles in base fluids, show substantial enhancement in thermal properties compared to regular fluids
Nanofluids enormously enhance the thermal conductivity of base fluid, and they can be used in many industrial applications such as nuclear reactors, transportation and electronics
The suspended nanoparticles in nanofluids are responsible for changing the thermal properties of the base fluid
Summary
Nanofluids, which are considered as suspensions of nanoparticles in base fluids, show substantial enhancement in thermal properties compared to regular fluids. Bachok et al [5] investigated the steady boundary layer flow of a nanofluid over a moving flat plate in a uniform free stream. Bachok et al [7] studied numerically the boundary layer flow of nanofluids over a fixed or moving flat plate with a uniform free stream. They used the shooting method to solve the problem and concluded that the inclusion of nanoparticles into the base water fluid had produced an increase in the heat transfer coefficients. The steady laminar boundary layer heat transfer of various nanofluids over an impermeable moving flat plate is investigated. The temperature profiles are demonstrated for various values of the nanoparticles volume fraction and for various nanoparticles type
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