Heat transfer and turbulent simulation of nanomaterial due to compound turbulator including irreversibility analysis

Abstract In this research, combined turbulator was proposed to achieve good thermal performance. Steady turbulent flow of copper oxide nanofluid with homogeneous model was simulated involving k-ɛ model. Among various geometric parameters, height of turbulator (b) has been selected and its variation as well as Reynolds number was demonstrated in outputs. Exergy loss as well as flow and heat transfer was analyzed. Augmenting b is capable of increasing heat transfer. More disturbances can be seen with augmenting inlet velocity. Exergy loss is inversely proportional to increase of pumping power.

[1]  S. Malik,et al.  MHD convection and entropy generation of nanofluid in a porous enclosure with sinusoidal heating , 2017 .

[2]  W. Liu,et al.  An experimental and numerical study on the laminar heat transfer and flow characteristics of a circular tube fitted with multiple conical strips inserts , 2018 .

[3]  A. Arabkoohsar,et al.  Impact of Lorentz forces on Fe3O4-water ferrofluid entropy and exergy treatment within a permeable semi annulus , 2019, Journal of Cleaner Production.

[4]  M. Jafaryar,et al.  Nanofluid turbulent convective flow in a circular duct with helical turbulators considering CuO nanoparticles , 2018, International Journal of Heat and Mass Transfer.

[5]  Yu Jiang,et al.  Nanofluid heat transfer augmentation and exergy loss inside a pipe equipped with innovative turbulators , 2018, International Journal of Heat and Mass Transfer.

[6]  M. Sheikholeslami,et al.  New computational approach for exergy and entropy analysis of nanofluid under the impact of Lorentz force through a porous media , 2019, Computer Methods in Applied Mechanics and Engineering.

[7]  Naveed Ahmed,et al.  Analysis of magnetohydrodynamic flow and heat transfer of Cu–water nanofluid between parallel plates for different shapes of nanoparticles , 2018, Neural Computing and Applications.

[8]  Nidal Abu-Hamdeh,et al.  Natural convection of Al2O3/H2O nanofluid in an open inclined cavity with a heat-generating element , 2018, International Journal of Heat and Mass Transfer.

[9]  Adnan,et al.  A theoretical investigation of unsteady thermally stratified flow ofγAl2O3−H2OandγAl2O3−C2H6O2nanofluids through a thin slit , 2018, Journal of Physics and Chemistry of Solids.

[10]  Ahmad Shafee,et al.  Heat transfer simulation of heat storage unit with nanoparticles and fins through a heat exchanger , 2019, International Journal of Heat and Mass Transfer.

[11]  Satyaranjan Mishra,et al.  Effect of heat source and double stratification on MHD free convection in a micropolar fluid , 2015 .

[12]  N. C. Roy.  Convection characteristics in a closed vessel in the presence of exothermic combustion and ambient temperature oscillations , 2018 .

[13]  Yuedong Yao,et al.  A numerical approach for obtaining type curves of superheated multi-component thermal fluid flow in concentric dual-tubing wells , 2017 .

[14]  Jifeng Cui,et al.  Mixed convection flow in a channel with slip in a porous medium saturated with a nanofluid containing both nanoparticles and microorganisms , 2018, International Journal of Heat and Mass Transfer.

[15]  Ahmad Shafee,et al.  Heat transfer behavior of nanoparticle enhanced PCM solidification through an enclosure with V shaped fins , 2019, International Journal of Heat and Mass Transfer.

[16]  T. Yousefi,et al.  Thermal performance augmentation using water based Al2O3-gamma nanofluid in a horizontal shell and tube heat exchanger under forced circulation , 2017 .

[17]  Mair Khan,et al.  Interaction between chemical species and generalized Fourier’s law on 3D flow of Carreau fluid with variable thermal conductivity and heat sink/source: A numerical approach , 2018, Results in Physics.

[18]  Yujin Hwang,et al.  Convective heat transfer characteristics of nanofluids under laminar and turbulent flow conditions , 2009 .

[19]  Sameh E. Ahmed,et al.  Mixed Convection in a Cavity Saturated with Wavy Layer Porous Medium: Entropy Generation , 2018, Journal of Thermophysics and Heat Transfer.

[20]  H. Oztop,et al.  MHD natural convection in a partially open trapezoidal cavity filled with a nanofluid , 2016 .

[21]  Yuedong Yao,et al.  Performance analysis of superheated steam injection for heavy oil recovery and modeling of wellbore heat efficiency , 2017 .

[22]  Mohamed A. Hassan,et al.  Wall properties of peristaltic MHD nanofluid flow through porous channel , 2018 .

[23]  M. Sheikholeslami,et al.  Numerical approach for MHD Al2O3-water nanofluid transportation inside a permeable medium using innovative computer method , 2019, Computer Methods in Applied Mechanics and Engineering.

[24]  Nidal Abu-Hamdeh,et al.  Heatline visualization of natural convection in a thick walled open cavity filled with a nanofluid , 2017 .

[25]  Ahmad Shafee,et al.  Heat transfer of nanoparticles employing innovative turbulator considering entropy generation , 2019, International Journal of Heat and Mass Transfer.

[26]  Sang-Wook Lee,et al.  Unsteady natural convection heat transfer in a nanofluid-filled square cavity with various heat source conditions , 2016 .

[27]  Guobing Zhou,et al.  Numerical simulation on performances of plane and curved winglet type vortex generator pairs with punched holes , 2016 .

[28]  Syed Tauseef Mohyud-Din,et al.  Influence of thermal radiation and viscous dissipation on squeezed flow of water between Riga plates saturated with carbon nanotubes , 2017 .

[29]  Nidal Abu-Hamdeh,et al.  Heatline visualization of MHD natural convection in an inclined wavy open porous cavity filled with a nanofluid with a local heater , 2016 .

[30]  Asif Waheed,et al.  Thermophysical Analysis of Water Based (Cu–Al2O3) Hybrid Nanofluid in an Asymmetric Channel with Dilating/Squeezing Walls Considering Different Shapes of Nanoparticles , 2018 .