Topic
Nanofluid
About: Nanofluid is a research topic. Over the lifetime, 23986 publications have been published within this topic receiving 677384 citations.
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TL;DR: Hybrid-nanofluids as mentioned in this paper is a new fluid produced by dispersing two dissimilar types of nano-particles into the base fluid, which can be used to improve heat transfer performance.
158 citations
TL;DR: In this paper, a review of the literature on convective heat transfer on internal separated flows has been extensively conducted in the past decades, and the influence of several parameters such as the geometrical specifications, boundary conditions, type of fluids, and inclination angle on the hydrodynamic and thermal characteristics using (BFS).
Abstract: Research in convective heat transfer on internal separated flows has been extensively conducted in the past decades. This review summarizes numerous researches on two topics. The first section focuses on studying the fluid flow and heat transfer behavior of different types of single-phase fluid flows over backward facing step (BFS) at different orientations. The second section concentrates on everything related to nanofluids; its preparation, properties, behavior, applications, and many others. The purpose of this article is to get a clear view and detailed summary of the influence of several parameters such as the geometrical specifications, boundary conditions, type of fluids, and inclination angle on the hydrodynamic and thermal characteristics using (BFS). The reattachment length and maximum Nusselt number are the main target of such research where correlation equations were developed and reported in experimental and numerical studies. The heat transfer enhancement of nanofluids along with the nanofluids preparation technique, types and shapes of nanoparticles, base fluids and additives, transport mechanisms, and stability of the suspension are also discussed.
158 citations
TL;DR: In this paper, the influence of carbon nanotubes in the Marangoni convection boundary layer flow of viscous fluid has been investigated and convergent series solutions are established for the resulting differential systems.
158 citations
TL;DR: In this paper, double-diffusive nanofluid convection in porous media is investigated for both non-oscillatory and oscillatory cases; the stability boundaries for these cases are approximated by simple and useful analytical expressions.
Abstract: The paper develops a theory of double-diffusive nanofluid convection in porous media. This theory is applied to investigating the onset of nanofluid convection in a horizontal layer of a porous medium saturated by a nanofluid for the case when the base fluid of the nanofluid is itself a binary fluid such as salty water. The model used for the nanofluid incorporates the effects of Brownian motion and thermophoresis, while the Darcy model is used for the porous medium. In addition the thermal energy equations include regular diffusion and cross-diffusion terms. Both non-oscillatory and oscillatory cases are investigated by using Galerkin method; the stability boundaries for these cases are approximated by simple and useful analytical expressions.
158 citations
TL;DR: In this article, the unsteady boundary layer flow of a nanofluid over a permeable stretching/shrinking sheet is theoretically studied, and the governing partial differential equations are transformed into ordinary ones using a similarity transformation, before being solved numerically.
158 citations