journal article·2021-04-25Open access

Mixed Convection of Hybrid Nanofluid in an Inclined Enclosure with a Circular Center Heater under Inclined Magnetic Field

Sufian Munawar, Najma Saleem, Waqar Ahmad Khan, Sumiya Nasir

Coatings· Volume 11· Issue 5

Abstract

The hybrid nanofluids have efficient thermal networking due to the trade-off between the pros and cons of the more than one type of suspension. In the current study, water-based hybrid nanofluid is used to investigate mixed convection in a squared enclosure heated with a circular center heater. The cavity is placed inclined under the uniform inclined magnetic field. The squared cavity comprises of two adiabatic vertical walls and two cold horizontal walls. The governing equations are normalized using a suitable set of variables and are solved with the finite element method. A comparison is provided with previously reported results at limiting case. The grid independence is examined for the Nusselt number at the central heater. The analysis reveals the effective role of the concentration of hybrid nanofluid particles in enhancing the heat spread. The results indicate that adding 2% concentration of Ag-MgO hybrid nanoparticles causes an 18.3% uprise in the Nusselt number at the central heater. The heat transfer rate enhances for increasing Hartmann number between 0 and 10 but decreases over 10. For better heat transfer augmentation, a heater with a smaller radius is recommended for the free convection. In contrast, a heater with a larger radius serves the purpose in case of forced convection.
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Research context

OpenAlex topics: Nanofluid Flow and Heat Transfer · Heat Transfer Mechanisms · Heat Transfer and Optimization

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Quantitative Methods, College of Business Administration, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 34212, Saudi Arabia

Department of Mathematics and Natural Sciences, College of Sciences and Human Studies, Prince Mohammad Bin Fahd University, Khobar 31952, Saudi Arabia

Department of Mechanical Engineering, College of Engineering, Prince Mohammad Bin Fahd University, Khobar 31952, Saudi Arabia

References (47)

Show source-provided references
1. Mixed convection in two-sided lid-driven differentially heated square cavity10.1016/j.ijheatmasstransfer.2003.10.016 ↗
2. Mixed convection in a square cavity filled with CuO-water nanofluid heated by corner heater10.1016/j.ijmecsci.2017.08.029 ↗
3. Effect of nanofluid variable properties on mixed convection in a square cavity10.1016/j.ijthermalsci.2011.09.003 ↗
4. Finite element based heatline approach to study mixed convection in a porous square cavity with various wall thermal boundary conditions10.1016/j.ijheatmasstransfer.2010.12.043 ↗
5. Mixed convection in a square cavity by a perturbation technique10.1016/j.commatsci.2007.07.004 ↗
6. Mixed Convection Heat Transfer inside a Square Cavity Filled with Cu-water Nanofluid10.1016/j.proeng.2015.05.031 ↗
7. Numerical simulation of mixed convection flows in a square lid-driven cavity partially heated from below using nanofluid10.1016/j.icheatmasstransfer.2010.09.004 ↗
8. Analysis of mixed convection flows within a square cavity with uniform and non-uniform heating of bottom wall10.1016/j.ijthermalsci.2008.08.003 ↗
9. Alsabery, A.I., Ghalambaz, M., Armaghani, T., Chamkha, A., Hashim, I., and Saffari Pour, M. (2020). Role of Rotating Cylinder toward Mixed Convection inside a Wavy Heated Cavity via Two-Phase Nanofluid Concept. Nanomaterials, 10.10.3390/nano10061138 ↗
10. Natural convection and entropy generation of a nanofluid around a circular baffle inside an inclined square cavity under thermal radiation and magnetic field effects10.1016/j.icheatmasstransfer.2020.104650 ↗
11. Alsabery, A.I., Hashim, I., Hajjar, A., Ghalambaz, M., Nadeem, S., and Saffari Pour, M. (2020). Entropy Generation and Natural Convection Flow of Hybrid Nanofluids in a Partially Divided Wavy Cavity Including Solid Blocks. Energies, 13.10.3390/en13112942 ↗
12. Characteristics of mixed convection heat transfer in a lid-driven square cavity with various Richardson and Prandtl numbers10.1016/j.ijthermalsci.2010.09.012 ↗
13. Effect of temperature gradient orientation on the characteristics of mixed convection flow in a lid-driven square cavity10.1016/j.compfluid.2010.01.009 ↗
14. Mixed convection in alumina-water nanofluid filled lid-driven square cavity with an isothermally heated square blockage inside with magnetic field effect: Introduction10.1016/j.ijheatmasstransfer.2017.01.117 ↗
15. Numerical simulation of MHD mixed convection in alumina–water nanofluid filled square porous cavity using KKL model: Effects of non-linear thermal radiation and inclined magnetic field10.1016/j.molliq.2017.05.019 ↗
16. Role of magnetic field and cavity inclination on double diffusive mixed convection in rectangular enclosed domain10.1016/j.icheatmasstransfer.2020.104814 ↗
17. Numerical Simulation on Effect of Porous Medium on Mixed Convection Heat Transfer in a Ventilated Square Cavity10.1016/j.proeng.2015.11.333 ↗
18. Two-phase mixture modeling of mixed convection of nanofluids in a square cavity with internal and external heating10.1016/j.powtec.2015.02.015 ↗
19. Numerical analysis of conjugate natural and mixed convection heat transfer of nanofluids in a square cavity using the two-phase method10.1016/j.apt.2017.04.006 ↗
20. Two phase simulation of natural convection and mixed convection of the nanofluid in a square cavity10.1016/j.powtec.2015.02.013 ↗
21. Mixed convection heat transfer in a square porous cavity filled with a nanofluid with suction/injection effect10.1016/j.camwa.2018.08.069 ↗
22. Mixed convection in a lid-driven square cavity filled by a nanofluid: Buongiorno’s mathematical model10.1016/j.amc.2015.05.145 ↗
23. Numerical study of mixed convection flows in a square lid-driven cavity utilizing nanofluid10.1016/j.icheatmasstransfer.2009.08.013 ↗
24. Lattice Boltzmann simulation of MHD mixed convection in a lid-driven square cavity with linearly heated wall10.1016/j.scient.2012.06.015 ↗
25. Numerical study of mixed convective cooling in a square cavity ventilated and partially heated from the below utilizing nanofluid10.1016/j.icheatmasstransfer.2009.10.002 ↗
26. Numerical solution of nanofluid mixed convection heat transfer in a lid-driven square cavity with a triangular heat source10.1016/j.powtec.2013.12.039 ↗
27. Fuzzy-based estimation of mixed convection heat transfer in a square cavity in the presence of an adiabatic inclined fin10.1016/j.icheatmasstransfer.2012.10.006 ↗
28. Mixed convection of Al2O3-water nanofluid in a double lid-driven square cavity with a solid inner insert using Buongiorno’s two-phase model10.1016/j.ijheatmasstransfer.2017.11.136 ↗
29. Numerical study of mixed convection within porous square cavities using Bejan’s heatlines: Effects of thermal aspect ratio and thermal boundary conditions10.1016/j.ijheatmasstransfer.2012.04.058 ↗
30. A complete heatline analysis on mixed convection within a square cavity: Effects of thermal boundary conditions via thermal aspect ratio10.1016/j.ijthermalsci.2012.01.010 ↗
31. Mixed convection in a lid-driven square cavity with partial slip10.1016/j.ijthermalsci.2014.03.007 ↗
32. Investigation on effect of magnetic field on mixed convection heat transfer in a ventilated square cavity10.1016/j.proeng.2015.11.458 ↗
33. Effect of water-based Al2O3 nanofluids on heat transfer and pressure drop in periodic mixed convection inside a square ventilated cavity10.1016/j.icheatmasstransfer.2011.05.009 ↗
34. Numerical study of laminar mixed convection in a square open cavity10.1016/j.ijheatmasstransfer.2016.04.010 ↗
35. MHD mixed convection in a chamfered lid-driven cavity with partial heating10.1016/j.ijheatmasstransfer.2020.119901 ↗
36. Mixed convection in a lid driven square cavity with an isothermally heated square blockage inside10.1016/j.ijheatmasstransfer.2012.05.032 ↗
37. Heat transfer enhancement of mixed convection in a square cavity with inlet and outlet ports due to oscillation of incoming flow10.1016/j.icheatmasstransfer.2011.03.023 ↗
38. Hydrodynamic Mixed Convection in a Lid- driven Square Cavity Including Elliptic Shape Heated Block with Corner Heater10.1016/j.proeng.2017.08.169 ↗
39. Role of various moving walls on energy transfer rates via heat flow visualization during mixed convection in square cavities10.1016/j.energy.2014.11.059 ↗
40. MHD mixed convection of localized heat source/sink in a nanofluid-filled lid-driven square cavity with partial slip10.1016/j.jtice.2016.08.033 ↗
41. Numerical study on the conjugate effect of joule heating and magnato-hydrodynamics mixed convection in an obstructed lid-driven square cavity10.1016/j.icheatmasstransfer.2009.12.012 ↗
42. Mixed convection flow in single- and double-lid driven square cavities filled with water–Al2O3 nanofluid: Effect of viscosity models10.1016/j.euromechflu.2012.03.005 ↗
43. MHD convective heat transfer of Ag-MgO/water hybrid nanofluid in a channel with active heaters and coolers10.1016/j.ijheatmasstransfer.2019.03.169 ↗
44. Heat transfer augmentation in a two-sided lid-driven differentially heated square cavity utilizing nanofluids10.1016/j.ijheatmasstransfer.2006.09.034 ↗
45. Free convection heat transfer of MgO-MWCNTs/EG hybrid nanofluid in a porous complex shaped cavity with MHD and thermal radiation effects10.1108/HFF-04-2019-0339 ↗
46. Experimental determination of thermal conductivity and dynamic viscosity of Ag–MgO/water hybrid nanofluid10.1016/j.icheatmasstransfer.2015.06.003 ↗
47. Natural convection in the annulus between concentric horizontal circular and square cylinders10.2514/3.820 ↗