Impact of magnetic field localization on the vortex generation in hybrid nanofluid flow

被引:35
作者
Ali, Kashif [1 ]
Ahmad, Shabbir [1 ,2 ]
Ahmad, Sohail [1 ,3 ]
Tayebi, Tahar [4 ]
机构
[1] Muhammad Nawaz Sharif Univ Engn & Technol, Dept Basic Sci & Humanities, Multan 60000, Pakistan
[2] China Univ Geosci, Inst Geophys & Geomat, Wuhan 430074, Peoples R China
[3] Bahauddin Zakariya Univ, Ctr Adv Studies Pure & Appl Math, Multan 60800, Pakistan
[4] Univ Mohamed El Bachir El Ibrahimi Bordj Bou Arrer, Fac Sci & Technol, Dept Mech Engn, El Anasser 34030, Algeria
关键词
Vortex; Reynolds number; Single-phase model; Hybrid nanofluids; Localized magnetic field; CONVECTION HEAT-TRANSFER; LID-DRIVEN CAVITY; NATURAL-CONVECTION; THERMAL-CONDUCTIVITY; ENTROPY GENERATION;
D O I
10.1007/s10973-023-12104-5
中图分类号
O414.1 [热力学];
学科分类号
摘要
The term "vortex" refers to a region in a fluid where the flow spin around an axis line, which could be flat or curved. Vortices can twist, stretch, move, and interact in several situations, once they are formed. The angular and linear momentum, along with some energy and mass, are all noticeable in a rotating vortex. Descriptions of vortices developed in various flows include smoke rings, dust devils, cyclones, and the wind surrounding a tropical tornado. The existence of vortices in the natural environment makes it important for researchers to explore them when and wherever they are encountered. Magnetic field effects include numerous technical applications such as: B. Extraction of geothermal energy, casting of metals, cooling of nuclear reactors. Hybrid nanofluids, on the other hand, are more effectively accepted as next-generation thermal systems in automotive cooling applications, heat exchangers, and HVAC due to their higher thermophysical properties. The purpose of this work is to study how local magnetic fields affect the magnetic flux of a hybrid nanofluid inside an enclosure induced by a magnetic source. We implement a single-phase model (SPM) to classify hybrid nanofluids and computationally evaluate the associated partial differential equations (PDEs). The results reflect that the localized magnetic field generates a counter-rotating vortex in the flow which breaks apart the other vortex and hence becomes strengthened. The vortex elongates along the direction of the localized magnetic field and tends to occupy a major part of the cavity. Magnetic field decreases in the thermal gradient near the horizontal walls of the enclosure. The faster-moving lids cause more rigorous mixing of the layer of fluid at different temperatures, which distorts the uniformity of the pattern of isotherms. Finally, heat transport is more affected by the magnetic field as compared to skin friction.
引用
收藏
页码:6283 / 6300
页数:18
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