This article investigates the pulsatile flow of viscous incompressible MHD nanofluid in a rectangular channel. At upper and lower walls, channel has symmetrical constrictions. The goal is to analyze heat transfer features under effect magnetic field thermal radiation. Five different nanofluids, formed with nanoparticles copper <mm...

In the present study, slip velocity of a non-Newtonian fluid flowing above continuously stretching surface with double-diffusive nanofluid is examined at prespecified values temperature, while also accounting for salt concentration. An initial set partial differential equations, along boundary conditions, are first cast into dimensionless form; subsequently, comparation variables invoked to red...

This study computationally investigates the heat transfer characteristics in a double-pipe counter-flow heat-exchanger. A heated viscoelastic fluid occupies inner core region, and outer annulus is filled with colder Newtonian-Fluid-Based Nanofluid (NFBN). mathematical model developed to conjugate exchange properties from hot NFBN. The modelling formulation of given problem comprises system coup...

This study presents the improvement of thermal performance of heat pipe using copper nanofluid with aqueous solution of n-Butanol. The nanofluids kept in the suspension of conventional fluids have the potential of superior heat transfer capability than the conventional fluids due to their improved thermal conductivity. In this work, the copper nanofluid which has a 40 nm size with a concentrati...

Recent advancements in nanotechnology have originated the new emerging heat transfer fluids called nanofluids. Nanofluids are prepared by dispersing and stably suspending nanometer sized solid particles in conventional heat transfer fluids. Past researches have shown that a very small amount of suspending nanoparticles have the potential to enhance the thermo physical, transport and radiative p...

The problem of a steady boundary layer shear flow over a stretching/shrinking sheet in a nanofluid is studied numerically. The governing partial differential equations are transformed into ordinary differential equations using a similarity transformation, before being solved numerically by a Runge-Kutta-Fehlberg method with shooting technique. Two types of nanofluids, namely, Cu-water and Ag-wa...

This study compares environmental and economic impacts of using nanofluids to enhance solar collector efficiency as compared to conventional solar collectors for domestic hotwater systems. Results show that for the current cost of nanoparticles the nanofluid based solar collector has a slightly longer payback period but at the end of its useful life has the same economic savings as a convention...

This paper presents a linear stability analysis of natural convection in a horizontal layer of a viscoelastic nanofluid. The Oldroyd B model was utilized to describe the rheological behavior of a viscoelastic nanofluid. The model used for the nanofluid incorporated the effects of Brownian motion and thermophoresis. The onset criterion for stationary and oscillatory convection was derived analyt...