Mixed convection of Water-Aluminum oxide nanofluid in an inclined lid-driven cavity containing a hot elliptical centric cylinder

Abstract The mixed convection in a lid-driven cavity containing a hot elliptical centric cylinder was studied by using of Water-Aluminum oxide (Al2O3) nanofluid. The problem was simulated at different Richardson numbers (0.1, 1, 10, 100), different volume fractions (0, 0.1%, and 0.2%), different angles (0°, 15°, and 45°), and temperature difference of 50°C. The obtained results show that by Increase in Richardson number in a constant volume fraction and cavity angle decreases the Nusselt number, because increased Richardson number reduces the nanofluid velocity and increases the shear force. Also, increased in Richardson number reduces the decreasing trend of Nusselt number, because at the Richardson numbers of 0.1–10, the main heat transfer mechanism is forced convection; Also, increase in the temperature difference between the cold walls and the cylinder at a constant Richardson number, volume fraction and cavity angle increase the Nusselt number and heat transfer in such a way that the increasing trend of the Nusselt number depends on volume fraction, fluid velocity, and cavity angle.

[1]  Ali J. Chamkha,et al.  Mixed convection flow in single- and double-lid driven square cavities filled with water–Al2O3 nanofluid: Effect of viscosity models , 2012 .

[2]  Gianluca Danilo D'Urso,et al.  Micro-electro discharge machining drilling of stainless steel with copper electrode: The influence of process parameters and electrode size , 2016 .

[3]  D. Toghraie,et al.  Experimental investigation for developing a new model for the thermal conductivity of Silica/Water-Ethylene glycol (40%–60%) nanofluid at different temperatures and solid volume fractions , 2017 .

[4]  R. Ellahi,et al.  The shape effects of nanoparticles suspended in HFE-7100 over wedge with entropy generation and mixed convection , 2016, Applied Nanoscience.

[5]  Omid Ali Akbari,et al.  The effect of velocity and dimension of solid nanoparticles on heat transfer in non-Newtonian nanofluid , 2017 .

[6]  Davood Toghraie,et al.  Fluid flow and heat transfer of non-Newtonian nanofluid in a microtube considering slip velocity and temperature jump boundary conditions , 2017 .

[7]  W. Khan,et al.  Inclined MHD Mixed Convection and Partial Slip of Nanofluid in a Porous Lid-Driven Cavity with Heat Source-Sink: Effect of Uniform and Non-Uniform Bottom Heating , 2017 .

[8]  Mina Shahi,et al.  A numerical investigation of conjugated-natural convection heat transfer enhancement of a nanofluid in an annular tube driven by inner heat generating solid cylinder , 2011 .

[9]  O. K. Crosser,et al.  Thermal Conductivity of Heterogeneous Two-Component Systems , 1962 .

[10]  R. Ellahi,et al.  Shape effects of nanosize particles in Cu-H2O nanofluid on entropy generation , 2015 .

[11]  R. Ellahi,et al.  Optimization of mixed convection heat transfer with entropy generation in a wavy surface square lid-driven cavity by means of Taguchi approach , 2016 .

[12]  Davood Toghraie,et al.  Effects of temperature and nanoparticles concentration on rheological behavior of Fe3O4–Ag/EG hybrid nanofluid: An experimental study , 2016 .

[13]  Somchai Wongwises,et al.  An experimental study on the effect of diameter on thermal conductivity and dynamic viscosity of Fe/water nanofluids , 2015, Journal of Thermal Analysis and Calorimetry.

[14]  F. Garoosi,et al.  Numerical study of natural and mixed convection heat transfer between differentially heated cylinders in an adiabatic enclosure filled with nanofluid , 2016 .

[15]  D. Toghraie,et al.  Numerical simulation of laminar forced convection of water-CuO nanofluid inside a triangular duct , 2017 .

[16]  K. Khanafer,et al.  BUOYANCY-DRIVEN HEAT TRANSFER ENHANCEMENT IN A TWO-DIMENSIONAL ENCLOSURE UTILIZING NANOFLUIDS , 2003 .

[17]  A. Abbasian,et al.  Mixed Convection Flow and Heat Transfer in an Up-Driven, Inclined, Square Enclosure Subjected to DWCNT-Water Nanofluid Containing Three Circular Heat Sources , 2017 .

[18]  Somchai Wongwises,et al.  Thermal conductivity modeling of MgO/EG nanofluids using experimental data and artificial neural network , 2014, Journal of Thermal Analysis and Calorimetry.

[19]  Omid Ali Akbari,et al.  Investigation of rib's height effect on heat transfer and flow parameters of laminar water-Al2O3 nanofluid in a rib-microchannel , 2016, Appl. Math. Comput..

[20]  Mohammad Mehdi Rashidi,et al.  Two phase simulation of natural convection and mixed convection of the nanofluid in a square cavity , 2015 .

[21]  Hakan F. Oztop,et al.  Natural convection and entropy generation of nanofluid filled cavity having different shaped obstacles under the influence of magnetic field and internal heat generation , 2015 .

[22]  M. H. Esfe,et al.  Combined Convection in a Lid-Driven Cavity with an Inside Obstacle Subjected to Al_2O_3-Water Nanofluid: Effect of Solid Volume Fraction and Nanofluid Variable Properties , 2013 .

[23]  Davood Toghraie,et al.  Designing an artificial neural network to predict dynamic viscosity of aqueous nanofluid of TiO2 using experimental data , 2016 .

[24]  Rahmat Ellahi,et al.  Aggregation effects on water base Al2O3—nanofluid over permeable wedge in mixed convection , 2016 .

[25]  F. Talebi,et al.  Numerical study of mixed convection flows in a square lid-driven cavity utilizing nanofluid , 2010 .

[26]  Rahmat Ellahi,et al.  Effects of wavy surface characteristics on natural convection heat transfer in a cosine corrugated square cavity filled with nanofluid , 2017 .

[27]  M. Afrand,et al.  Estimation of thermal conductivity of Al2O3/water (40%)–ethylene glycol (60%) by artificial neural network and correlation using experimental data , 2016 .

[28]  L. Skerget,et al.  A numerical study of nanofluid natural convection in a cubic enclosure with a circular and an ellipsoidal cylinder , 2015 .

[29]  Numerical study of mixed convective cooling in a square cavity ventilated and partially heated from the below utilizing nanofluid , 2010 .

[30]  Saiied M. Aminossadati,et al.  Mixed convection in a lid-driven triangular enclosure filled with nanofluids , 2010 .

[31]  G. Kefayati.  FDLBM simulation of mixed convection in a lid-driven cavity filled with non-Newtonian nanofluid in the presence of magnetic field , 2015 .

[32]  S. Gupta,et al.  Mixed convective transport in a lid-driven cavity containing a nanofluid and a rotating circular cylinder at the center ☆ , 2014 .

[33]  M. Farhadi,et al.  Mixed convection heat transfer in a ventilated cavity with hot obstacle: Effect of nanofluid and outlet port location , 2012 .

[34]  D. Toghraie,et al.  Developing a new correlation to estimate the thermal conductivity of MWCNT-CuO/water hybrid nanofluid via an experimental investigation , 2017, Journal of Thermal Analysis and Calorimetry.

[35]  K. Vafai,et al.  Numerical investigation and sensitivity analysis of effective parameters on combined heat transfer performance in a porous solar cavity receiver by response surface methodology , 2017 .

[36]  Hakan F. Oztop,et al.  Mixed convection in a two-sided elastic walled and SiO2 nanofluid filled cavity with internal heat generation: Effects of inner rotating cylinder and nanoparticle's shape , 2015 .

[37]  Davood Toghraie,et al.  Numerical simulation of heat transfer and fluid flow of Water-CuO Nanofluid in a sinusoidal channel with a porous medium , 2017 .

[38]  A. R. Azimian,et al.  The surface charge density effect on the electro-osmotic flow in a nanochannel: a molecular dynamics study , 2015 .

[39]  M. Afrand,et al.  Experimental study on thermal conductivity of water-based Fe3O4 nanofluid: Development of a new correlation and modeled by artificial neural network , 2016 .

[40]  S. A. Eftekhari,et al.  Longitudinal vibration and instabilities of carbon nanotubes conveying fluid considering size effects of nanoflow and nanostructure , 2016 .

[41]  M. Afrand,et al.  An experimental study on viscosity of alumina-engine oil: Effects of temperature and nanoparticles concentration , 2016 .

[42]  G. Kefayati.  Mesoscopic simulation of mixed convection on non-Newtonian nanofluids in a two sided lid-driven enclosure , 2015 .

[43]  Hamid Hassanzadeh Afrouzi,et al.  Mixed Convection Heat Transfer Analysis in an Enclosure with Two Hot Cylinders: A Lattice Boltzmann Approach , 2017 .

[44]  R. Mohamed,et al.  Numerical simulation of mixed convection flows in a square lid-driven cavity partially heated from below using nanofluid , 2010 .

[45]  H. Brinkman.  The Viscosity of Concentrated Suspensions and Solutions , 1952 .

[46]  Arash Karimipour,et al.  Mixed convection of copper-water nanofluid in a shallow inclined lid driven cavity using the lattice Boltzmann method , 2014 .

[47]  FDLBM simulation of magnetic field effect on mixed convection in a two sided lid-driven cavity filled with non-Newtonian nanofluid , 2015 .

[48]  Saman Rashidi,et al.  Influences of wavy wall and nanoparticles on entropy generation over heat exchanger plat , 2017 .

[49]  G. Bagheri,et al.  Numerical simulation of natural convection of nanofluids in a square cavity with several pairs of heaters and coolers (HACs) inside , 2013 .

[50]  Omid Ali Akbari,et al.  Influence of T-semi attached rib on turbulent flow and heat transfer parameters of a silver-water nanofluid with different volume fractions in a three-dimensional trapezoidal microchannel , 2017 .

[51]  M. Afrand,et al.  Measurement of thermal conductivity of ZnO–TiO2/EG hybrid nanofluid , 2016, Journal of Thermal Analysis and Calorimetry.

[52]  Hui Tang,et al.  Simulation of natural convection and entropy generation of non-Newtonian nanofluid in a porous cavity using Buongiorno’s mathematical model , 2017 .

[53]  Bart Koopman,et al.  The effect of tyre and rider properties on the stability of a bicycle , 2015 .

[54]  Wei-Mon Yan,et al.  Effects of temperature and concentration on rheological behavior of MWCNTs/SiO2(20–80)-SAE40 hybrid nano-lubricant☆ , 2016 .

[55]  Omid Ali Akbari,et al.  Impact of ribs on flow parameters and laminar heat transfer of water–aluminum oxide nanofluid with different nanoparticle volume fractions in a three-dimensional rectangular microchannel , 2015 .

[56]  W. Roetzel,et al.  Conceptions for heat transfer correlation of nanofluids , 2000 .

[57]  M. Hemmat Esfe,et al.  Mixed convection in a lid-driven cavity with an inside hot obstacle filled by an Al2O3–water nanofluid , 2015 .

[58]  Omid Ali Akbari,et al.  Numerical simulation of heat transfer and turbulent flow of water nanofluids copper oxide in rectangular microchannel with semi-attached rib , 2016 .

[59]  M. Afrand,et al.  Experimental determination of viscosity of water based magnetite nanofluid for application in heating and cooling systems , 2016 .

[60]  Young I Cho,et al.  HYDRODYNAMIC AND HEAT TRANSFER STUDY OF DISPERSED FLUIDS WITH SUBMICRON METALLIC OXIDE PARTICLES , 1998 .

[61]  R. Ellahi,et al.  Three dimensional mesoscopic simulation of magnetic field effect on natural convection of nanofluid , 2015 .

[62]  M. Doustdar,et al.  NUMERICAL STUDY OF MIXED CONVECTION OF NANO FLUID IN A LID-DRIVEN CAVITY CONTAINING HOT OBSTACLES , 2016 .

[63]  M. Afrand,et al.  EFFECT OF NANOFLUID VARIABLE PROPERTIES ON MIXED CONVECTION FLOW AND HEAT TRANSFER IN AN INCLINED TWO-SIDED LID-DRIVEN CAVITY WITH SINUSOIDAL HEATING ON SIDEWALLS , 2014 .

[64]  Gh.R. Kefayati,et al.  Mixed convection of non-Newtonian nanofluid in an enclosure using Buongiorno’s mathematical model , 2017 .

[65]  M. Afrand,et al.  Mixed-convection flow and heat transfer in an inclined cavity equipped to a hot obstacle using nanofluids considering temperature-dependent properties , 2015 .