Results 271 to 280 of about 40,420 (297)
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Molecular wall effects: Are conditions at a boundary “boundary conditions”?
Physical Review E, 2000This paper addresses and answers "no" to the question of whether the literal molecular-dynamically-derived species velocities prevailing at a solid surface bounding a two-component fluid continuum undergoing molecular diffusion constitute the appropriate species-velocity boundary conditions to be imposed upon the fluid continuum.
H, Brenner, V, Ganesan
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A modified wall boundary condition for multi-perforated walls
International Journal of Heat and Mass Transfer, 2013Abstract In this work, an analytical solver has been developed to evaluate the mass, momentum and energy transfer from the high pressure (generally cold) side to the low pressure (generally hot) side of a multiperforated plate. This solver has been implemented into a CFD code to connect the boundary conditions on both sides of the plate.
Ph. Grenard, D. Scherrer
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Magnetogasdynamic Boundary Conditions at a Conducting Wall
The Physics of Fluids, 1964Velocity boundary conditions at a conducting wall have been developed for the continuum magnetogasdynamic equations. The wall is separated from the fully ionized plasma by a Langmuir type sheath. The effects of the sheath on the single fluid plasma boundary conditions are studied for the case where the particle gyro period is large compared to its ...
Luzzi, T. E., Gross, R. A.
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Plasma Science and Technology, 2001
The wall conditioning methods including DC glow discharge, boronization and siliconization on HL-1M are reviewed. The DC glow discharge with helium is routinely used to decrease impurities and recycling. The DC glow discharge is also used for wall boronization or siliconization and the removal of coated film.
Wang Zhi-wen +4 more
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The wall conditioning methods including DC glow discharge, boronization and siliconization on HL-1M are reviewed. The DC glow discharge with helium is routinely used to decrease impurities and recycling. The DC glow discharge is also used for wall boronization or siliconization and the removal of coated film.
Wang Zhi-wen +4 more
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On the lifetime of wall conditioning layers
Journal of Nuclear Materials, 2005Abstract Motivated by the large-scale application of tungsten as first wall material in the tokamak ASDEX Upgrade, we performed a numerical study about the erosion behaviour of boron films from carbon and tungsten substrates using the Monte-Carlo code TRIDYN.
Maier, H., Schmid, K., Eckstein, W.
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Journal of Nuclear Materials, 1987
Abstract The vacuum vessel of JT-60 has a volume of 160 m 3 and a vacuum side surface of 2750 m 2 containing the surfaces of the first wall and many types of ports. The first wall is made of 20 μm TiC coated molybdenum and Inconel 625, bolted to the inner surface of the vacuum vessel.
T. Arai +9 more
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Abstract The vacuum vessel of JT-60 has a volume of 160 m 3 and a vacuum side surface of 2750 m 2 containing the surfaces of the first wall and many types of ports. The first wall is made of 20 μm TiC coated molybdenum and Inconel 625, bolted to the inner surface of the vacuum vessel.
T. Arai +9 more
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CONDITIONS OF FLOW AT INTERFACES WITH FLEXIBLE WALLS
Annals of the New York Academy of Sciences, 1976It is shown that the presence of highly deformable surface layers of low elastic modulus produce effects in flow that tend to reduce throughout. This phenomenon seems to be due to the generation of surface waves and a corresponding fluid zone into which these waves are also partially propagated.
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Wall conditioning with lithium evaporation
Journal of Nuclear Materials, 1995Thin lithium layers are deposited on metal or graphite walls by evaporation in vacuum. Clean lithium surfaces have wide chemical activities on such gases as O 2 , CO and CH 4 . In particular, a strong gettering effect on oxygen is observed; the minimum number of 0 atoms gettered by the lithium layer is about one half the total number of Li atoms ...
H. Sugai +7 more
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Wall conditioning of the Thor Tokamak
Il Nuovo Cimento B Series 11, 1980The conditioning of the walls of Thor container by means of cleaning hydrogen discharges allowed a reduction of the influence of light impurities as oxygen and carbon on the plasma; as a consequenceZeff was also reduced. The experimental results seem to confirm the correlation between the cleaning and the amount of water and methane in the discharge ...
G. Bonizzoni, S. Cirant, M. Fontanesi
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A new wall boundary condition in particle methods
Computer Physics Communications, 2006zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Limin Wang 0006, Wei Ge, Jinghai Li
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