Behavior of capillary-porous systems with liquid lithium  under influence of pulsed deuterium plasma

Vertkov, A. V.; Voronin, A. V.; Gusev, V. K.; Demina, E. V.; Lyublinskiy, I. E.; Pimenov, V. N.; Prusakova, M. D.

doi:10.30791/1028-978x-2018-10-15-24

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“…The most promising feeding designs of liquid lithium (Li) PFCs, recommended for future fusion devices, are owing to either capillary action or controlled flowing. The former design [11,12,[17][18][19] adopts capillary force to firmly hold liquid Li in a porous structure. This results in the reduction of instability and associated droplet splashing [11].…”

Section: Introductionmentioning

confidence: 99%

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Surface instability of static liquid metal in magnetized fusion plasma

Somboonkittichai

Zuo

2023

Nucl. Fusion

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Understanding surface instability in magnetized fusion plasma supports the appropriate implementation and handling of liquid metal as plasma facing components (PFCs) in future fusion reactors. A Lagrange equation describing a viscous liquid surface deformation in a magnetized plasma is derived using Rayleigh's method. Its solution justifies the general instability criterion and helps in characterizing the key interactions driving such instability under fusion conditions. Surface tension and gravity, especially with the poloidal angles of the lower part of a plasma chamber, mainly stabilize the liquid surface at small and large disturbance wavelengths, respectively. The sheath electric field and the external tangential magnetic field cause the liquid surface to disintegrate at an intermediate wavelength. Practically, a magnetic confinement fusion (MCF) device requires a strong magnetic field for confinement. The study suggests that such a strong field dominates the rest and governs instability. In addition, this implies that the configuration of a static planar free liquid surface is difficult to adopt as a candidate for handling the liquid metal as PFCs in next step MCF devices.

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Section: Introductionmentioning

confidence: 99%

“…However, lithium deuteride reduces Li self-replenishment flow rate, against capillary [17]. In addition, this configuration provides slow heat transfer, so that it is strongly damaged by repetitive heat loads [19]. The latter design adopts controlled flowing, e.g.…”

Section: Introductionmentioning

confidence: 99%

Surface instability of static liquid metal in magnetized fusion plasma

Somboonkittichai

Zuo

2023

Nucl. Fusion

View full text Add to dashboard Cite

show abstract

Behavior of capillary-porous systems with liquid lithium under influence of pulsed deuterium plasma

Cited by 1 publication

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Surface instability of static liquid metal in magnetized fusion plasma

Surface instability of static liquid metal in magnetized fusion plasma

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