Magnetohydrodynamic flows in a hairpin duct under a magnetic field applied perpendicular to the plane of flow

Xiao, Xuejiao; Kim, Chang Nyung

doi:10.1016/j.amc.2014.04.049

Cited by 16 publications

(7 citation statements)

References 22 publications

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“…24=2 (l x1 +l x2 /2)+2l y , is used, the loss coefficient becomes a minus small value, meaning that small pressure recovery occurs. Xiao et al also presented a pressure drop change along inlet, turning and outlet channels giving pressure recovery in the turning channel [11]. It can be said from the above results that the loss coefficient for the turning channel is nearly zero or small.…”

Section: Base Casementioning

confidence: 92%

“…Three-dimensional numerical calculations are indispensable in order to predict exactly liquid-metal MHD flows with changes in flow direction, channel cross section, applied magnetic field and others. In recent years, threedimensional numerical calculations have been performed on MHD liquid-metal flows in magnetic field inlet-region or outlet-region [2][3][4], expanding channels [4][5][6][7], contracting channels [8,9], U-bend channels [10], 180°-turn (hairpinshaped) channels [11,12], branching channels [13] and others.…”

Section: Introductionmentioning

confidence: 99%

“…Xiao et al carried out numerical calculations on liquidmetal MHD flows in a 180°-turn (hairpin-shaped) square channel [11]. The channel walls were electrically-conducting, and the magnetic field was applied in the direction perpendicular to the plane of inlet and outlet channels.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Analyses on Liquid-Metal Magnetohydrodynamic Flow in 180°-Turn Channel

Kumamaru¹,

Takagaki²

2019

IJMEA

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Numerical calculations have been performed on liquid-metal magnetohydrodynamic (MHD) flow in a 180°-turn (i.e. hairpin-shaped) channel, in order to contribute to design of a fusion reactor blanket. A magnetic field is applied in a direction perpendicular to an inlet channel, a turning channel (turning section) and an outlet channel. The continuity equation, the momentum equation and the induction equation have been solved numerically. In this study, attention is focused on pressure drops along the channels and pressure distribution in the turning channel. The Hartmann number (indicating magnetic field strength), the Reynolds number and the channel aspect ratio, in the present calculations, cover 100 to 500, 1000 to 5000 and 1 to 1/4, respectively. The following things have become clear from calculation results. The total MHD pressure drop from a channel inlet to a channel outlet agrees approximately with that for the total channel length, meaning that the loss coefficient for the turning channel is nearly zero or small. For large Reynolds numbers, the pressure in the peripheral region of the turning channel becomes larger than that at the channel inlet, due to the centrifugal force acting in the turning channel. It is considered that this pressure increase should be taken into account in designing a fusion reactor blanket.

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Section: Base Casementioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

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Numerical Analyses on Liquid-Metal Magnetohydrodynamic Flow in 180°-Turn Channel

Kumamaru¹,

Takagaki²

2019

IJMEA

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“…Moreover, equations (27) - (28) are thereby coded on Mathematica software package, then substituting the results back into (20) to obtain the solutions for the velocity and temperature profiles which are hereby discussed in the next section because of the large volume of outputs.…”

Section: Methods Of Solution [Adomian Decomposition Methods (Adm)]mentioning

confidence: 99%

Thermodynamic analysis of an hydromagnetic internal heat generating variable-viscosity channel flow with non-uniform wall temperature

Rahimi¹

2018

Kragujevac J Science

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This study examines the influence of magnetic intensity and internal heat generation on a flow system with variable-viscosity channel with varying wall temperatures. The fluid is assumed to be steady, incompressible with both the variable viscosity and internal heat generation to be a linear function of temperature. The approximate solutions are secured by using Adomian decomposition method (ADM) for the momentum and energy distributions as well as the rate of entropy generation and other thermophysical aspects of the flow regime under the impact of both the magnetic influence and internal heat generation are illustrated in tables and graphs.

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“…MHD is an interdisciplinary subject that has been used in various engineering problems like the design of MHD pumps and flows meters and cooling of nuclear reactors etc. In the field of microfluidics, MHD pimping is very favorable because of its uncomplicated design and less power consumption [79][80][81][82]. In the starting, conventional heat…”

Section: Magneto-hydrodynamics (Mhd) Influencementioning

confidence: 99%

Recent Advancements in Thermal Performance Enhancement in Microchannel Heatsinks for Electronic Cooling Application

Korasikha¹,

Sharma²,

Rao³

et al. 2021

Heat Transfer - Design, Experimentation and Applications

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Thermal management of electronic equipment is the primary concern in the electronic industry. Miniaturization and high power density of modern electronic components in the energy systems and electronic devices with high power density demanded compact heat exchangers with large heat dissipating capacity. Microchannel heat sinks (MCHS) are the most suitable heat exchanging devices for electronic cooling applications with high compactness. The heat transfer enhancement of the microchannel heat sinks (MCHS) is the most focused research area. Huge research has been done on the thermal and hydraulic performance enhancement of the microchannel heat sinks. This chapter’s focus is on advanced heat transfer enhancement methods used in the recent studies for the MCHS. The present chapter gives information about the performance enhancement MCHS with geometry modifications, Jet impingement, Phase changing materials (PCM), Nanofluids as a working fluid, Flow boiling, slug flow, and magneto-hydrodynamics (MHD).

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Magnetohydrodynamic flows in a hairpin duct under a magnetic field applied perpendicular to the plane of flow

Cited by 16 publications

References 22 publications

Numerical Analyses on Liquid-Metal Magnetohydrodynamic Flow in 180°-Turn Channel

Numerical Analyses on Liquid-Metal Magnetohydrodynamic Flow in 180°-Turn Channel

Thermodynamic analysis of an hydromagnetic internal heat generating variable-viscosity channel flow with non-uniform wall temperature

Recent Advancements in Thermal Performance Enhancement in Microchannel Heatsinks for Electronic Cooling Application

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