Modeling of gas flows in radial micro-nozzles

被引：3

作者：

Kiselev, S. P. ^{[1
,2
]}

Kiselev, V. P. ^{[1
]}

Liapidevskii, V. Yu ^{[3
,4
]}

Zaikovskii, V. N. ^{[1
]}

机构：

[1] Russian Acad Sci, Khristianovich Inst Theoret & Appl Mech, Siberian Branch, Novosibirsk 630090, Russia

[2] Novosibirsk State Tech Univ, Novosibirsk 630092, Russia

[3] Russian Acad Sci, Lavrentev Inst Hydrodynam, Siberian Branch, Novosibirsk 630090, Russia

[4] Novosibirsk State Univ, Novosibirsk 630090, Russia

来源：

ALL-RUSSIAN CONFERENCE WITH INTERNATIONAL PARTICIPATION MODERN PROBLEMS OF CONTINUUM MECHANICS AND EXPLOSION PHYSICS DEDICATED TO THE 60TH ANNIVERSARY OF LAVRENTYEV INSTITUTE OF HYDRODYNAMICS SB RAS | 2017年 / 894卷

基金：

俄罗斯基础研究基金会;

关键词：

JET;

D O I：

10.1088/1742-6596/894/1/012042

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In the present paper, results of an experimental and numerical study of gas flows in radial micro-nozzles are reported. The radial micro-nozzle consists of two disks spaced apart by a less than one millimeter distance. To the inlet of the radial nozzle, a gas under high pressure is supplied; through the nozzle, the pressurized gas is ejected into ambient space. In the present study, we analyzed the flows in which the gas at the inlet to the micro-nozzle had a supersonic velocity. It was shown that, on the condition that the micro-nozzle width was smaller than some critical value, then, due to the wall friction force, a pseudo-shock arose in the micro-nozzle. In the pseudo-shock, the gas underwent deceleration to a subsonic velocity. A satisfactory agreement between the calculated and experimental data was achieved.

引用

页数：6

共 6 条

[1]

Abramovich G.N., 1976, Applied gas dynamics

[2]

Anderson Dale, 2020, Computational Fluid Mechanics and Heat Transfer

[3] Study of the gas-particle radial supersonic jet in the cold spraying [J].