Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Atomization and Sprays
Импакт фактор: 1.737 5-летний Импакт фактор: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 2.2

ISSN Печать: 1044-5110
ISSN Онлайн: 1936-2684

Выпуски:
Том 30, 2020 Том 29, 2019 Том 28, 2018 Том 27, 2017 Том 26, 2016 Том 25, 2015 Том 24, 2014 Том 23, 2013 Том 22, 2012 Том 21, 2011 Том 20, 2010 Том 19, 2009 Том 18, 2008 Том 17, 2007 Том 16, 2006 Том 15, 2005 Том 14, 2004 Том 13, 2003 Том 12, 2002 Том 11, 2001 Том 10, 2000 Том 9, 1999 Том 8, 1998 Том 7, 1997 Том 6, 1996 Том 5, 1995 Том 4, 1994 Том 3, 1993 Том 2, 1992 Том 1, 1991

Atomization and Sprays

DOI: 10.1615/AtomizSpr.v18.i1.20
pages 49-83

UNSTEADINESS IN EFFERVESCENT SPRAYS: A NEW EVALUATION METHOD AND THE INFLUENCE OF OPERATIONAL CONDITIONS

Jan Jedelsky
Brno University of Technology, Faculty of Mechanical Engineering, Department of the thermodynamics and environmental engineering, Technická 2896/2, 616 69 Brno, Czech Republic
Miroslav Jicha
Brno University of Technology, Faculty of Mechanical Engineering, Department of the thermodynamics and environmental engineering, Technická 2896/2, 616 69 Brno, Czech Republic

Краткое описание

A new evaluation method of unsteadiness of the spray generated by an effervescent atomizer is presented. The method is based on measurements of pressure fluctuations in the atomizer mixing chamber. Measurements, made under different atomizer operational conditions, show that the spray unsteadiness depends mainly on gas-to-liquid ratio (GLR). Decrease in GLR causes the spray to become more unsteady. The relation between atomizer internal two-phase flow pattern and the spray unsteadiness is elucidated by visualization of the internal two-phase flow using a digital camera and the use of published two-phase flow maps. Findings of the new method are complemented and confronted with the results obtained by the use of the spray unsteadiness evaluation method of Edwars and Marx.


Articles with similar content:

EVALUATION OF PLAIN-JET AIR BLAST ATOMIZATION AND EVAPORATION OF ALTERNATIVE FUELS IN A SMALL GAS TURBINE ENGINE APPLICATION
Atomization and Sprays, Vol.19, 2009, issue 8
Christopher D. Bolszo, Vincent G. McDonell
COMPARISON OF WATER-IN-OIL EMULSION ATOMIZATION CHARACTERISTICS FOR LOW- AND HIGH-CAPACITY PRESSURE-SWIRL NOZZLES
Atomization and Sprays, Vol.21, 2011, issue 5
Christopher D. Bolszo, William A. Sirignano, Adrian A. Narvaez, Vincent G. McDonell, Derek Dunn-Rankin
EFFECT OF THE LIQUID INJECTION ANGLE ON THE ATOMIZATION OF LIQUID JETS IN SUBSONIC CROSSFLOWS
Atomization and Sprays, Vol.24, 2014, issue 1
H. Almeida, J. M. M. Sousa, Mário Costa
EXPERIMENTAL STUDY ON THE MERGED ANGLE BY SPRAY INTERACTION FROM PRESSURE-SWIRL ATOMIZERS
Atomization and Sprays, Vol.23, 2013, issue 4
Moongeun Hong, Soo Yong Lee, Youngsun Yi
MULTIPOINT STATISTICAL STRUCTURE OF THE IDEAL SPRAY, PART II: EVALUATING STEADINESS USING THE INTERPARTICLE TIME DISTRIBUTION
Atomization and Sprays, Vol.5, 1995, issue 4&5
Christopher F. Edwards, K. D. Marx