CONTROL AND USE OF A MINIATURIZED DROPLET GENERATOR

被引：1

作者：

BLUMCKE, E

EICKHOFF, H

HASSA, C

机构：

[1] Institut für Antriebstechnik DLR, Köln, D-5000, Linder Höhe

来源：

PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION | 1991年 / 8卷 / 04期

关键词：

D O I：

10.1002/ppsc.19910080154

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A miniaturized droplet generator with some new features, working on the principle of laminar liquid jet instability and breakup was designed. The instrument has been used to study the dispersion of monosized droplets in a turbulent swirling flow, exhibiting the main features of combustion chamber flows of modern gas turbines. The operating range of the generator was evaluated by phase-Doppler anemometry (PDA). It was demonstrated that the device also works in some metastable operating modes, producing coherent droplet streams with very small standard deviations for drop size and drop velocity. Special attention was directed to the reliability of the device and to the control of drop size. The PDA measurements showed that, in contrast to the evaluated optimum excitation frequency, the drop size cannot be determined from the orifice diameter.

引用

页码：297 / 300

页数：4

共 14 条

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