Enhancement of Natural Convection Heat Transfer Using Magnetic Nanofluid in a Square Cavity
DOI:
https://doi.org/10.31185/ejuow.Vol10.Iss3.324Keywords:
Natural convection, Heat Transfer, Magnetic Nanofluids, Square Cavity.Abstract
Researchers in heat transfer are paying close attention to nanofluids because of their potential as high-performance thermal transport media. In light of natural convection's enormous significance, the addition of nanoparticles significantly enhances the thermophysical properties of the nanofluids compared to the base fluid. In this study, numerical work was used to evaluate the influence of CuO nanoparticles on natural convection with the magnetohydrodynamic (MHD) flow in a square cavity. The hollow's left and right vertical walls were maintained at different temperatures, and the top and bottom walls of the cavity were each insulated. This numerical study applied a horizontal magnetic field with uniform strength. Results were obtained for a variety of Hartmann numbers ranging from 0–300, Rayleigh numbers going from 2.76E+8 to 6.89E+8, and solid volume fractions ranging from 0 to 1.5%. Results showed that the heat transfer coefficient and Nusselt number values decreased with the increase in the values of the Hartmann number, except for the heat transfer coefficients at Ha=100 and 150 were larger than the heat transfer coefficients at Ha= 0. The maximum heat transfer coefficient enhancement was 40.8% at 1.5% volume concentration of CuO nanoparticles, Ra= 6.7E+8 and Ha=100 compared to water at Ha=0. The maximum enhancement of the Nusselt number was found to be 28.5% at a 1.5% volume concentration of CuO nanoparticles Ra= 6.7E+8 and Ha=100 compared to water at Ha=0. At a 1.5% volume concentration of CuO nanoparticles, Ra= 6.7E+8 and Ha=100, the increase in the heat transfer coefficient was 56 %, and the rise in the Nusselt number was 43 % compared to water at Ha=100.
References
X.-Q. Wang and A. S. Mujumdar, "Heat transfer characteristics of nanofluids: a review," Int. J. Therm. Sci., vol. 46, no. 1, pp. 1–19, 2007. DOI: https://doi.org/10.1016/j.ijthermalsci.2006.06.010
U. S. Choi, "Enhancing thermal conductivity of fluids with nanoparticles, Development and Applications of Non-Newtonian flows edited by Siginer, DA and Wang, HP, EFD-Vol. 231/MD-Vol. 66," 1995.
A. H. Pordanjani, S. M. Vahedi, F. Rikhtegar, and S. Wongwises, "Optimization and sensitivity analysis of magnetohydrodynamic natural convection nanofluid flow inside a square enclosure using response surface methodology," J. Therm. Anal. Calorim., vol. 135, no. 2, pp. 1031–1045, 2019. DOI: https://doi.org/10.1007/s10973-018-7652-6
R. Mohebbi, M. Izadi, H. Sajjadi, A. A. Delouei, and M. A. Sheremet, "Examining of nanofluid natural convection heat transfer in a Γ-shaped enclosure including a rectangular hot obstacle using the lattice Boltzmann method," Phys. A Stat. Mech. its Appl., vol. 526, p. 120831, 2019, doi: https://doi.org/10.1016/j.physa.2019.04.067. DOI: https://doi.org/10.1016/j.physa.2019.04.067
M. Izadi, G. Hoghoughi, R. Mohebbi, and M. Sheremet, "Nanoparticle migration and natural convection heat transfer of Cu-water nanofluid inside a porous undulant-wall enclosure using LTNE and two-phase model," J. Mol. Liq., vol. 261, pp. 357–372, 2018, doi: https://doi.org/10.1016/j.molliq.2018.04.063. DOI: https://doi.org/10.1016/j.molliq.2018.04.063
M. Torki and N. Etesami, "Experimental investigation of natural convection heat transfer of SiO2/water nanofluid inside the inclined enclosure," J. Therm. Anal. Calorim., vol. 139, no. 2, pp. 1565–1574, 2020. DOI: https://doi.org/10.1007/s10973-019-08445-9
N. C. Roy, "Natural convection of nanofluids in a square enclosure with different shapes of inner geometry," Phys. Fluids, vol. 30, no. 11, p. 113605, 2018. DOI: https://doi.org/10.1063/1.5055663
R. J. Moreau, Magnetohydrodynamics, vol. 3. Springer Science & Business Media, 1990.
A. Bennia and M. N. Bouaziz, "CFD modeling of turbulent forced convective heat transfer and friction factor in a tube for Fe3O4 magnetic nanofluid in the presence of a magnetic field," J. Taiwan Inst. Chem. Eng., vol. 78, pp. 127–136, 2017. DOI: https://doi.org/10.1016/j.jtice.2017.04.035
T. S. Devi, C. V. Lakshmi, K. Venkatadri, and M. S. Reddy, "Influence of external magnetic wire on natural convection of non-Newtonian fluid in a square cavity," Partial Differ. Equations Appl. Math., vol. 4, p. 100041, 2021. DOI: https://doi.org/10.1016/j.padiff.2021.100041
N. Reddy and K. Murugesan, "Magnetic field influence on double-diffusive natural convection in a square cavity–A numerical study," Numer. heat Transf. part A Appl., vol. 71, no. 4, pp. 448–475, 2017. DOI: https://doi.org/10.1080/10407782.2016.1277922
S. M. Aminossadati, A. Raisi, and B. Ghasemi, "Effects of magnetic field on nanofluid forced convection in a partially heated microchannel," Int. J. Non. Linear. Mech., vol. 46, no. 10, pp. 1373–1382, 2011, doi: 10.1016/j.ijnonlinmec.2011.07.013. DOI: https://doi.org/10.1016/j.ijnonlinmec.2011.07.013
A. S. Dogonchi, T. Tayebi, A. J. Chamkha, and D. D. Ganji, "Natural convection analysis in a square enclosure with a wavy circular heater under magnetic field and nanoparticles," J. Therm. Anal. Calorim., vol. 139, no. 1, pp. 661–671, 2020. DOI: https://doi.org/10.1007/s10973-019-08408-0
M. M. Rashidi, M. Nasiri, M. Khezerloo, and N. Laraqi, "Numerical investigation of magnetic field effect on mixed convection heat transfer of nanofluid in a channel with sinusoidal walls," J. Magn. Magn. Mater., vol. 401, pp. 159–168, 2016, doi: 10.1016/j.jmmm.2015.10.034. DOI: https://doi.org/10.1016/j.jmmm.2015.10.034
P. Y. Lee, K. Ishizaka, H. Suematsu, W. Jiang, and K. Yatsui, "Magnetic and gas sensing property of nanosized NiFe2O 4 powders synthesized by pulsed wire discharge," J. Nanoparticle Res., vol. 8, no. 1, pp. 29–35, 2006, doi: 10.1007/s11051-005-5427-z. DOI: https://doi.org/10.1007/s11051-005-5427-z
A. Mahmoudi, I. Mejri, and A. Omri, "Study of natural convection in a square cavity filled with nanofluid and subjected to a magnetic field," Int. J. Heat Technol., vol. 34, no. 1, pp. 73–79, 2016. DOI: https://doi.org/10.18280/ijht.340111
A. Mourad, A. Aissa, F. Mebarek-Oudina, W. Al-Kouz, and M. Sahnoun, "Natural convection of nanoliquid from elliptic cylinder in wavy enclosure under the effect of uniform magnetic field: numerical investigation," Eur. Phys. J. Plus, vol. 136, no. 4, pp. 1–18, 2021. DOI: https://doi.org/10.1140/epjp/s13360-021-01432-w
A. I. Alsabery, T. Tayebi, A. J. Chamkha, and I. Hashim, "Effects of two-phase nanofluid model on natural convection in a square cavity in the presence of an adiabatic inner block and magnetic field," Int. J. Numer. Methods Heat Fluid Flow, 2018. DOI: https://doi.org/10.1108/HFF-10-2017-0425
Y. I. Dimitrienko and S. Li, "Numerical simulation of MHD natural convection heat transfer in a square cavity filled with Carreau fluids under magnetic fields in different directions," Comput. Appl. Math., vol. 39, no. 4, pp. 1–26, 2020. DOI: https://doi.org/10.1007/s40314-020-01300-w
S. A. M. Mehryan, M. Ghalambaz, M. A. Ismael, and A. J. Chamkha, "Analysis of fluid-solid interaction in MHD natural convection in a square cavity equally partitioned by a vertical flexible membrane," J. Magn. Magn. Mater., vol. 424, pp. 161–173, 2017. DOI: https://doi.org/10.1016/j.jmmm.2016.09.123
C.-C. Liao and W.-K. Li, "Assessment of the magnetic field influence on heat transfer transition of natural convection within a square cavity," Case Stud. Therm. Eng., vol. 28, p. 101638, 2021. DOI: https://doi.org/10.1016/j.csite.2021.101638
M. Corcione, "Empirical correlating equations for predicting the effective thermal conductivity and dynamic viscosity of nanofluids," Energy Convers. Manag., vol. 52, no. 1, pp. 789–793, 2011. DOI: https://doi.org/10.1016/j.enconman.2010.06.072
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