Nanofluid forced convection through a microtube with constant heat flux and slip boundary
Authors
Abstract:
Given the need to increase the efficiency of heat transfer in thermal systems, especially systems using nanofluids in microscale and nanoscale heat transfer equipment ideas to improve their performance is very good.In present study, the flow and heat transfer of Water-Cu nanofluid in micro-tube with slip regime with constant wall heat flux numerically simulated with low Reynolds numbers. Slip velocity and temperature jump boundary conditions are also considered along the microtube walls, for first time. The results are presented as the profiles of temperature and velocity. Nusselt number and pressure drop coefficient calculated in interance and full developed region. The effect of slip and using nano particle considerd.It is observed that Nusselt number increases with slip velocity coefficient and pressure drop coefficient decreases; att intrance region the Raynolds of flow has effect on Nusselt and pressure drop coefficient,too.Likewise observed nano particle adding to water has low effect to increases Nusselt number and pressure drop coefficientt.
similar resources
simulation of the forced convection heat transfer non-newtonian nanofluid, aqueous solution of carboxymethyl cellulose-aluminum oxide, in slip flow regime through a microtube
at present study the flow and heat transfer of non-newtonian nanofluid, aqueous solution of carboxymethyl cellulose-aluminum oxide with different volume fractions of nano particles in a two dimensional microtube is simulated for the first time. slip velocity and temperature jump boundary conditions are also considered along the microtube walls. the achieved results accuracy is investigated by c...
full textSlip-Flow and Heat Transfer of a Non-Newtonian Nanofluid in a Microtube
The slip-flow and heat transfer of a non-Newtonian nanofluid in a microtube is theoretically studied. The power-law rheology is adopted to describe the non-Newtonian characteristics of the flow, in which the fluid consistency coefficient and the flow behavior index depend on the nanoparticle volume fraction. The velocity profile, volumetric flow rate and local Nusselt number are calculated for ...
full textChemical reaction and radiation effects on MHD free convection flow through a porous medium bounded by a vertical surface with constant heat and mass flux
In the present paper, an analysis was carried out to investigate effects of radiation on a free convection flow bounded by a vertical surface embedded in a porous medium with constant suction velocity. It was under the influence of uniform magnetic field in the presence of a homogenous chemical reaction and viscous dissipation with constant heat and mass flux. The non-dimensional governing equa...
full textForced Convection Boundary Layer Magnetohydrodynamic Flow of Nanofluid over a Permeable Stretching Plate with Viscous Dissipation
Forced convection boundary layer magnetohydrodynamic flow of a nanofluid over a permeable stretching plate is studied in this paper. The effects of suction-injection and viscous dissipation are taken into account. The nanofluid model includes Brownian motion and thermophoresis effects. The governing momentum, energy, and nanofluid solid volume fraction equations are solved numerically using an ...
full textForced Convection Boundary Layer Mhd Flow of Nanofluid over a Permeable Stretching Plate with Viscous Dissipation
a Young Researchers Club, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran b Department of Mechanical Engineering, University of British Columbia Vancouver, Canada Forced convection boundary layer magneto-hydrodynamic (MHD) flow of a nanofluid over a permeable stretching plate is studied in this paper. The effects of suction-injection and viscous dissi 1 pation are taken into accoun...
full textSlip Flow Convection Heat Transfer in a Rectangular Microchannel with Exponential Wall Heat Flux
entry region of a rectangular microchannel is investigated. The wall heat flux is peripherally constant and varies exponentially with respect to the axis of the microchannel. The flow is assumed to be hydrodynamically fully developed. The three-dimensional energy conservation equation is solved numerically for different aspect ratios. Surface interaction parameters consist of momentum accommoda...
full textMy Resources
Journal title
volume 9 issue 2
pages 269- 280
publication date 2016-07-22
By following a journal you will be notified via email when a new issue of this journal is published.
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023