نتایج جستجو برای: newtonian nanofluid

تعداد نتایج: 15102  

2015
Muhammad Ramzan

The present exploration discusses the influence of Newtonian heating on the magnetohydrodynamic (MHD) three dimensional couple stress nanofluid past a stretching surface. Viscous dissipation and Joule heating effects are also considered. Moreover, the nanofluid model includes the combined effects of thermophoresis and Brownian motion. Using an appropriate transformation, the governing non linea...

In this paper, the natural convection heat transfer of Al2O3-EG-water nanofluid in a rectangular cavity which is heated from the bottom and is cooled from the top has been investigated numerically. The governing equations for a Newtonian fluid have been solved numerically with a finite volume approach using the SIMPLER algorithm. The main focus of the current study is on the effects of variable...

In the present study, the effect of nano Al2O3 and nano graphene ceramic additives in optimizing performance and improving thermophysical properties of aircraft anti-icing/de-icing fluids was investigated. Nanoparticles were characterized by TEM, SEM and XRD methods. The thermal conductivity, surface tension and dynamic viscosity of the hybrid nanofluids were experimentally assessed for tempera...

2012
Rahmat Ellahi Ahmed Zeeshan Kambiz Vafai Hafiz U Rahman

A study on the flow of non-Newtonian nanofluid between two coaxial cylinders is made. Two types of series solutions are constructed by choosing constant and variable viscosity. The effects of heat transfer analysis on nanoparticles in the presence of magnetohydrodynamics, porosity and partial slip are also examined. To drive the solutions of nonlinear boundary value problems, we have used a rec...

2012
Mohammed J. Uddin Waqar A. Khan Ahmed I. Ismail

Steady two dimensional MHD laminar free convective boundary layer flows of an electrically conducting Newtonian nanofluid over a solid stationary vertical plate in a quiescent fluid taking into account the Newtonian heating boundary condition is investigated numerically. A magnetic field can be used to control the motion of an electrically conducting fluid in micro/nano scale systems used for t...

Journal: :journal of heat and mass transfer research(jhmtr) 2014
milad tajik jamal-abad maziar dehghan seyfolah saedodin mohammad sadegh valipour amirhossein zamzamian

rheological characteristics of al2o3, cuo and tio2 nano particles were investigated in oil asthe base fluid at 1 and 2 wt.%. constitutive relations for non-newtonian fluid were discussedbased on the power-law model. measured viscosities of each nanofluid were used to evaluatethe power-law and consistency index. results indicated that the nanofluid viscosity decreasedby increasing the concentrat...

In this paper, an experimental study has been conducted on the rheological behavior of Water (80%) and Ethylene-glycol (20%) in presence of Al2O3-MWCNTs hybrid nanomaterials. For this purpose, nanofluid samples were prepared by suspending the nanomaterials in a mixture of water and EG with solid volume fractions of 0.0625%, 0.125%, 0.25% and 0.5% Viscosity measurements were performed at various...

2015
Muhammad Awais Tasawar Hayat Sania Irum Ahmed Alsaedi Enrico Scalas

Analysis has been done to investigate the heat generation/absorption effects in a steady flow of non-Newtonian nanofluid over a surface which is stretching linearly in its own plane. An upper convected Maxwell model (UCM) has been utilized as the non-Newtonian fluid model in view of the fact that it can predict relaxation time phenomenon which the Newtonian model cannot. Behavior of the relaxat...

Journal: :international journal of nano dimension 0
d. domiri ganji department of mechanical engineering, islamic azad university, sari branch, sari, iran. m. m. peiravi department of mechanical engineering, islamic azad university, sari branch, sari, iran. m. abbasi department of mechanical engineering, islamic azad university, sari branch, sari, iran.

in this paper, we have tried to find a solution for quick transfer of nuclear wastes from pools of cool water to dry stores to reduce the environmental concerns and financial cost of burying atomic waste. therefore, the rate of heat transfer from atomic waste materials to the outer surface of the container should be increased. this can be achieved by covering the bottom of the pool space with c...

Journal: :Symmetry 2023

Nanofluids behave like non-Newtonian fluids in many cases and, therefore, studying their symmetrical behavior is of paramount importance nanofluid heat transfer modeling. This article attempts to provide are flection on symmetry via thorough description a variety models and further provides comprehensive review articles that have applied flow modeling transfer. study reviews from recent years a...

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