Magnetic-Mixed Convection in Nanofluid-Filled Cavity Containing Baffles and Rotating Hollow-Cylinders with Roughness Components

被引:2
作者
Ali, Mohammad Mokaddes [1 ]
Akhter, Rowsanara [2 ]
Alim, Md. Abdul [3 ]
Miah, Md. Musa [1 ]
机构
[1] Mawlana Bhashani Sci & Technol Univ, Dept Math, Tangail 1902, Bangladesh
[2] Int Univ Scholars, Dept Nat Sci, Dhaka 1213, Bangladesh
[3] Bangladesh Univ Engn & Technol, Dept Math, Dhaka 1000, Bangladesh
关键词
LID-DRIVEN CAVITY; NATURAL-CONVECTION; ENTROPY GENERATION; SQUARE CAVITY; HEAT-TRANSFER; WATER NANOFLUID; FLOW; FIELD; ENCLOSURE; FLUID;
D O I
10.1155/2022/3044930
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Mixed convective heat transfer in a nanofluid-filled lid-driven square cavity equipped with a rotating cylinder, horizontal baffles, and an external magnetic field is numerically examined in this study. A cylinder with triangular components is set at the centre of the cavity while two horizontal baffles are fixed to its vertical walls. The cavity is under the impact of the external magnetic field. Modified Maxwell's model is taken into consideration to estimate the thermal conductivity of nanofluids. Galerkin FEM is applied to simulate nondimensional governing equations. The computations are carried out for specific ranges of physical parameters, and the results are illustrated through streamlines, isotherms, and average Nusselt number bar charts. Contours plotting indicate that flow circulation and distribution of temperature are significantly affected by the speed of a rotating rough cylinder. The fluid velocity remarkably increases with an increase in speed ratio and Reynolds number but it declines with Hartmann number, baffle length, and volume fraction. Heat transfer rate is substantially augmented by increasing the rotational speed of the rough cylinder, heights of triangular components, and suspended-nanoparticles which are also optimized for increasing baffle's length and its horizontal arrangement. The findings of this investigation can be applied to improve the cooling efficiency of engineering equipment such as heat exchangers, energy storage systems, electronic equipment, solar collectors, and nuclear reactor safety devices.
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页数:25
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共 64 条
[1]   Entropy generation due to hydromagnetic buoyancy-driven hybrid-nanofluid flow in partially heated porous cavity containing heat conductive obstacle [J].
Akhter, Rowsanara ;
Ali, Mohammad Mokaddes ;
Alim, M. A. .
ALEXANDRIA ENGINEERING JOURNAL, 2023, 62 :17-45
[2]   Effects of fins on magnetohydrodynamic conjugate natural convection in a nanofluid-saturated porous inclined enclosure [J].
Al-Farhany, Khaled ;
Al-Chlaihawi, Kadhim K. ;
Al-dawody, Mohamed F. ;
Biswas, Nirmalendu ;
Chamkha, Ali J. .
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2021, 126
[3]   Galerkin finite element analysis of magneto two-phase nanofluid flowing in double wavy enclosure comprehending an adiabatic rotating cylinder [J].
Al-Kouz, Wael ;
Bendrer, Bilal Abdel-Illah ;
Aissa, Abderrahmane ;
Almuhtady, Ahmad ;
Jamshed, Wasim ;
Nisar, Kottakkaran Sooppy ;
Mourad, Abed ;
Alshehri, Nawal A. ;
Zakarya, Mohammed .
SCIENTIFIC REPORTS, 2021, 11 (01)
[4]   Free convection from a corrugated heated cylinder with nanofluids in a porous enclosure [J].
Alhashash, Abeer .
ADVANCES IN MECHANICAL ENGINEERING, 2020, 12 (08)
[5]   Numerical study of mixed convection nanofluid in an annulus enclosure between outer rotating cylinder and inner corrugation cylinder [J].
Ali, Farooq Hassan ;
Hamzah, Hameed K. ;
Abdulkadhim, Ammar .
HEAT TRANSFER-ASIAN RESEARCH, 2019, 48 (01) :343-360
[6]   MHD natural convection and entropy generation in a grooved enclosure filled with nanofluid using two-component non-homogeneous model [J].
Ali, Mohammad Mokaddes ;
Akhter, Rowsanara ;
Alim, Md Abdul .
SN APPLIED SCIENCES, 2020, 2 (04)
[7]   Oriented magnetic field effect on mixed convective flow of nanofluid in a grooved channel with internal rotating cylindrical heat source [J].
Ali, Mohammad Mokaddes ;
Alim, M. A. ;
Ahmed, S. S. .
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2019, 151 :385-409
[8]   Mixed convection in sinusoidal lid driven cavity with non-uniform temperature distribution on the wall utilizing nanofluid [J].
Aljabair, Sattar ;
Ekaid, Ali L. ;
Ibrahim, Sahira Hasan ;
Alesbe, Israa .
HELIYON, 2021, 7 (05)
[9]   Analysis of unsteady mixed convection in lid-driven cavity included circular cylinders motion using an incompressible smoothed particle hydrodynamics method [J].
Aly, Abdelraheem M. ;
Asai, Mitsuteru ;
Chamkha, Ali J. .
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, 2015, 25 (08) :2000-2021
[10]   Numerical investigation of water-alumina nanofluid natural convection heat transfer and entropy generation in a baffled L-shaped cavity [J].
Armaghani, T. ;
Kasaeipoor, A. ;
Alavi, N. ;
Rashidi, M. M. .
JOURNAL OF MOLECULAR LIQUIDS, 2016, 223 :243-251