Liquid metal MHD effect and heat transfer research in a rectangular duct with micro-channels under a magnetic field

Wang, Z.H.; Lei, T.Y.

doi:10.1016/j.ijthermalsci.2020.106411

Cited by 32 publications

(2 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To model and evaluate the performance of liquid metals, i.e., in the thermal management setting, and to reliably control the liquid metal in these applications, fundamental knowledge of the physics and chemistry (i.e., reactivity, corrosivity) of liquid metals is of utmost importance. − Still, the measurement of the physical properties of liquid metals is challenging. It is, for example, well-established that gallium-based liquid metals bead up due to their high surface tension. , However, the measurement of the surface tension is encumbered with surface oxidation, due to which values between 535 and 718 mN/m have been published, − and thus, the reliability of the given values suffers greatly.…”

Section: Introductionmentioning

confidence: 99%

Critical Review on the Physical Properties of Gallium-Based Liquid Metals and Selected Pathways for Their Alteration

2021

View full text Add to dashboard Cite

Gallium-based liquid metals have gained plenty of attention in the scientific community due to their extraordinary properties. The most intriguing properties of liquid metals are high surface tension, density anomaly, high electrical and thermal conductivity, phase transition, and their temperature and low viscosity in combination with their low toxicity. Though there are many reports of the physical properties of gallium-based liquid metals, some of these are highly scattered and inconsistent. Therefore, we compile literature data of these aspects of gallium-based liquid metals, point out general relationships of these physical parameters, and unravel inconsistencies in the literature. Subsequently, we state reasons for the observed scatter and recommend science-based values researchers should employ. Furthermore, we discuss important dependencies between the physical parameters, introduce methods to alter the physical parameters, and introduce selected applications based on changing the physical properties. Finally, we point out open questions concerned with the physical parameters of liquid metals, which should be investigated in the future.

show abstract

Section: Introductionmentioning

confidence: 99%

Critical Review on the Physical Properties of Gallium-Based Liquid Metals and Selected Pathways for Their Alteration

2021

View full text Add to dashboard Cite

show abstract

“…Wang et al 15 investigated liquid metal buoyancy‐driven convection heat transfer in presence of a magnetic field in a rectangular enclosure. More recently, Wang and Lei 16 studied the convection heat transfer between a liquid metal flow and a microchannel heated surface under an external magnetic field. The nanofluid flow through a porous medium in the presence of a magnetic field was studied by Bhatti et al 17 Also, the effect of natural convection electro‐MHD flow through a porous medium of microchannel was investigated 18 .…”

Section: Introductionmentioning

confidence: 99%

Solidification of electrically conducting liquid flow driven by shear and pressure gradients subject to viscous and Joule heating

et al. 2022

View full text Add to dashboard Cite

Solidification of a liquid in motion driven by shear and pressure gradients occurs in many natural settings and technological applications. When the liquid is electrically conducting, its solidification rates can potentially be modulated by an imposed magnetic field. The shearing motion results in viscous dissipation and the Lorentz force induced by the magnetic field causes Joule heating of the fluid, which can influence the structure of the flow, thermal fields, and thereby the solidification process. In this study, a mathematical model is developed to study the combined effects of shear and pressure gradients in the presence of a magnetic field on the solidification of a liquid between two parallel plates, with one of them being insulated and under constant motion, and the other being cooled convectively and at rest. Under the quasi‐steady assumption, closed‐form semianalytical solutions are obtained for the instantaneous location of the solid–liquid interface, Nusselt number, and dimensionless power density as a function of various characteristic parameters such as the Hartmann number, pressure gradient parameter, Brinkman number, and Biot number. Furthermore, an interesting remelt or steady‐state condition for the interfacial location is derived as arising from the competing effects of the solid side heat flux and viscous dissipation and Joule heating on the liquid side. The newly derived analytical results are shown to reduce to the various classical results in the limiting cases. A detailed systematic study is performed by the numerical solution of the semianalytical formulation, and the effects of different characteristic parameters on the solidification process are discussed.

show abstract

Recent Development in Liquid Metal Materials

Liang

et al. 2021

ChemistryOpen

View full text Add to dashboard Cite

Liquid metals (LM) have shown a very broad development prospect over the past decades. This review article focuses on the latest research dedicated to liquid metal materials and their applications in five significant areas: stretchable conductive composite, intelligent sensing electronic skin, catalysis, 3D printing material, and driving machines. The fabrication, specific properties and application of stretchable liquid metal-polymer composites that can be used as self-healing materials have been summarized. Liquid metal deposition printing technology, liquid phase 3D printing, suspension 3D printing technology, micro-contact printing technology, and in vivo 3D printing molding technology have also been reviewed. Furthermore, the application of liquid metal catalyst in aldehyde reaction, photocatalysis, and electrocatalysis have been discussed. We have shown that electricity, magnetism, sound, light and heat could stimulate the movement of liquid metal. Through this comprehensive overview of the latest research, the main practical application, development, and mechanism of liquid metal were summarized and described. The future development of liquid metal technology was prospected, thus providing a strong basic research support for the further development of LM materials and their applications.

show abstract

Liquid metal MHD effect and heat transfer research in a rectangular duct with micro-channels under a magnetic field

Cited by 32 publications

References 25 publications

Critical Review on the Physical Properties of Gallium-Based Liquid Metals and Selected Pathways for Their Alteration

Critical Review on the Physical Properties of Gallium-Based Liquid Metals and Selected Pathways for Their Alteration

Solidification of electrically conducting liquid flow driven by shear and pressure gradients subject to viscous and Joule heating

Recent Development in Liquid Metal Materials

Contact Info

Product

Resources

About