Detail publikace
Experimentální výzkum vlastností spreje tlakových vířivých trysek pro malý tryskový motor
ĎURDINA, L. JEDELSKÝ, J. JÍCHA, M.
Český název
Experimentální výzkum vlastností spreje tlakových vířivých trysek pro malý tryskový motor
Anglický název
Experimental Investigation on Spray Characteristics of Pressure-Swirl Atomizers for a Small-Sized Jet Engine
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
en
Originální abstrakt
This study investigated characteristics of sprays generated with two geometrically different pressure-swirl atom-izers for a small-sized aviation turbine engine using Particle Image Velocimetry (PIV) and Phase-Doppler Particle Analyzer (P/DPA) on a cold test bench. The former nozzle is a spill-return type; the latter one is the intended upgrade in the form of a simplex nozzle. Single-camera and stereoscopic PIV measurements yield distribution of mean velocity and turbulence measured in an axial cross section of the spray cone. P/DPA measurements yield drop-size distribution and axial velocity data. Performed measurements revealed significant differences in spray characteristics of the measured nozzles investigated in the same operating regimes on a cold test bench. These differences are discussed in detail. Analysis of the differences between the two nozzles elucidates the possible impact of the nozzle replacement on the combustion process. This study provides an extensive database for validation of numerical models of the tested nozzles.
Český abstrakt
v této práci se věnujeme experimentálnímu výzkumu vlastností spreje tlakových vířivých trysek pro malý tryskový motor. Jsou porovnávány dvě různé geometrie trysek pomocí Particle Image Velocimetry (PIV) a Phase-Doppler Particle Analyzer (P/DPA).
Anglický abstrakt
This study investigated characteristics of sprays generated with two geometrically different pressure-swirl atom-izers for a small-sized aviation turbine engine using Particle Image Velocimetry (PIV) and Phase-Doppler Particle Analyzer (P/DPA) on a cold test bench. The former nozzle is a spill-return type; the latter one is the intended upgrade in the form of a simplex nozzle. Single-camera and stereoscopic PIV measurements yield distribution of mean velocity and turbulence measured in an axial cross section of the spray cone. P/DPA measurements yield drop-size distribution and axial velocity data. Performed measurements revealed significant differences in spray characteristics of the measured nozzles investigated in the same operating regimes on a cold test bench. These differences are discussed in detail. Analysis of the differences between the two nozzles elucidates the possible impact of the nozzle replacement on the combustion process. This study provides an extensive database for validation of numerical models of the tested nozzles.
Klíčová slova česky
Atomizace kapalin, vlastností spreje, tlaková vířivá tryska
Klíčová slova anglicky
Spray Characteristics, Pressure-Swirl Atomizer, PIV, P/DPA
Rok RIV
2012
Vydáno
02.09.2012
Nakladatel
Heidelberg University
Místo
Heidelberg, Germany
ISBN
978-88-903712-1-9
Kniha
proceedings of 12th International Conference on Liquid Atomization and Spray Systems
Strany od–do
1–8
Počet stran
8
BIBTEX
@inproceedings{BUT93805,
author="Lukáš {Ďurdina} and Jan {Jedelský} and Miroslav {Jícha},
title="Experimental Investigation on Spray Characteristics of Pressure-Swirl Atomizers for a Small-Sized Jet Engine",
booktitle="proceedings of 12th International Conference on Liquid Atomization and Spray Systems",
year="2012",
month="September",
pages="1--8",
publisher="Heidelberg University",
address="Heidelberg, Germany",
isbn="978-88-903712-1-9"
}