Liquid atomization in a high-speed coaxial gas jet

被引：20

作者：

Boiko, V. M. ^{[1
]}

Nesterov, A. Yu. ^{[1
]}

Poplavski, S. V. ^{[1
]}

机构：

[1] RAS, SB, Khristianovich Inst Theoret & Appl Mech, Novosibirsk, Russia

来源：

THERMOPHYSICS AND AEROMECHANICS | 2019年 / 26卷 / 03期

关键词：

high-speed jet; gas-droplet flow; droplets aerobreak; DROPLET JET; BREAKUP; VELOCITY; ACCELERATION; DYNAMICS; FLOW;

D O I：

10.1134/S0869864319030077

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The paper studies the process of liquid atomization in high-speed gas jets with application to a subject of high-rate fuel nozzles. Experiments were carried out for gas-liquid jet with the central-axis feeding of liquid to the outlet of a confuser-type nozzle with pumping of air in subsonic and supersonic flow regimes. The energy balance approach was developed for describing a gas-liquid jet. This provided us the needed data for comprehensive description of the gasliquid jet: gas velocity field without liquid, shadow visualization of geometry and wavy structure of a jet with liquid and with pure gas, velocity profiles for liquid phase, spray droplet size, spray concentration and spatial distribution. The gas-liquid flow was characterized by Weber number from the time of liquid jet breakup till the final spray.

引用

页码：385 / 398

页数：14

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