منابع مشابه
Knudsen layer reduction of fusion reactivity.
Knudsen layer losses of tail fuel ions can significantly reduce the fusion reactivity of multi-keV DT in capsules with small fuel ρr; sizable yield reduction can result for small inertial confinement fusion (ICF) capsules. This effect is most pronounced when the distance from a burning DT gas region to a nonreacting or cold wall is comparable to the mean free path of reacting fuel ions. A simpl...
متن کاملKnudsen layer formation in laser induced thermal desorption.
Laser induced thermal desorption of Xe atoms into vacuum from a metal surface following the nano-second pulsed laser heating was investigated by the time-of-flight (TOF) measurement. The desorption flow was studied at a wide range of desorption flux by varying the initially prepared Xe coverage Θ (1 ML = 4.5 × 10(18) atoms/m(2)). At Θ = 0.3 ML, the TOF of Xe was well represented by a Maxwell-Bo...
متن کاملLattice Boltzmann modelling Knudsen layer effect in non-equilibrium flows
Due to its intrinsically kinetic nature, lattice Boltzmann (LB) approach to simulating non-equilibrium gas flows has recently attracted significant research interest. Compared with other kinetic methods, it can offer a significantly smaller computational cost. To capture the nonlinear high-order rarefaction phenomena in gas flows, a geometry-dependent gas local mean free path has been proposed ...
متن کاملKnudsen effusion through polymer-coated three-layer porous graphene membranes.
Graphene membranes have the potential to exceed the permeance and selectivity limits of conventional gas separation membranes. Realizing this potential in practical systems relies on overcoming numerous scalability challenges, such as isolating or sealing permeable defects in macroscopic areas of graphene that can compromise performance and developing methods to create high densities of selecti...
متن کاملEffect of Thermal Conductivity on the Knudsen Layer at Ablative Surfaces (Preprint)
In this paper we develop an analytical model of Knudsen layer at the ablative wall taking into account the temperature gradient in the bulk gas. The region of validity of the existing models and effect of the temperature gradient on the Knudsen layer properties are calculated. 1 Electronic address: [email protected] Distribution A: Approved for public release; distribution unlimi...
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ژورنال
عنوان ژورنال: Physics of Plasmas
سال: 2014
ISSN: 1070-664X,1089-7674
DOI: 10.1063/1.4895477