Heterogeneous activation of rarefied hydrogen in thin tubes

被引：28

作者：

Plotnikov, M. Yu. ^{[1
]}

Shkarupa, E. V. ^{[2
]}

机构：

[1] Inst Thermophys SB RAS, Novosibirsk, Russia

[2] Inst Computat Math & Math Geophys SB RAS, Novosibirsk, Russia

来源：

VACUUM | 2016年 / 129卷

基金：

俄罗斯科学基金会;

关键词：

Heterogeneous reactions; Atomic hydrogen; Gas-dynamic sources; The direct simulation Monte Carlo method; STATISTICAL ERROR; GAS FLOW; DEPOSITION; DISSOCIATION; SIMULATION; FILMS;

D O I：

10.1016/j.vacuum.2016.04.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The direct simulation Monte Carlo method was used to study the rarefied gas flow through a cylindrical channel, taking into account heterogeneous reactions of dissociation-recombination on the surface. The main emphasis was placed on the study of the influence of heterogeneous processes on the degree of dissociation of the flow, coming out of the channel. The study was conducted for different relations of the channel length to its radius, coefficients of dissociation and recombination, and in a wide range of gas rarefaction degrees: from free molecular to transitional regimes. The obtained results may be useful for optimization of gas-dynamic sources of activated gas, based on thin tubes. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：31 / 37

页数：7

共 25 条

[21] MOLECULAR AND REACTIVE THERMAL-CONDUCTIVITIES AND ACCOMMODATION COEFFICIENTS OF DISSOCIATING HYDROGEN UP TO 2400 K [J].