THERMAL SCIENCE

International Scientific Journal

Fathollah Ommi

,

Koros Nekofar

,

Amir Kargar

,

Ehsan Movahed

EXPERIMENTAL INVESTIGATION OF CHARACTERISTICS OF A DOUBLE-BASE SWIRL INJECTOR IN A LIQUID ROCKET PROPELLANT ENGINE

ABSTRACT
In this work the fundamentals of swirl injector calculation is investigated and new design procedure is proposed. The design method for double-base liquid-liquid injectors is presented based on this theory and experimental results. Then special conditions related to double based liquid-liquid injectors are studied and the corresponding results are applied in design manipulation. The behavior of injector in various performing conditions is studied, and the design procedure is presented based on obtained results. A computer code for designing the injector is proposed. Based on this code, four injectors are manufactured. A specialized laboratory was setup for the measurement of macroscopic spray characteristics under different pressure such as homogeneous droplet distribution, spray angle, and swirl effect. Finally, through phase Doppler analyzer cold test, the microscopic characteristics of injectors spray are also obtained and measured. The results which will be explained in detail are satisfactory.
KEYWORDS
swirl injector, double-base injector, macroscopic and microscopic characteristics, atomization, phase Doppler analyzer laboratory
PAPER SUBMITTED: 2009-01-21
PAPER REVISED: 2009-03-13
PAPER ACCEPTED: 2009-06-14
DOI REFERENCE: https://doi.org/10.2298/TSCI1002479O
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2010, VOLUME 14, ISSUE Issue 2, PAGES [479 - 491]
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PDF VERSION [DOWNLOAD]
Experimental investigation of characteristics of a double-base swirl injector in a liquid rocket propellant engine

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence