Abo Bibliothek: Guest
Digitales Portal Digitale Bibliothek eBooks Zeitschriften Referenzen und Berichte Forschungssammlungen
Atomization and Sprays
Impact-faktor: 1.737 5-jähriger Impact-Faktor: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 2.2

ISSN Druckformat: 1044-5110
ISSN Online: 1936-2684

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

Atomization and Sprays

DOI: 10.1615/AtomizSpr.2015011677
pages 633-658

CHARACTERISTICS OF FLASHING FLOWS WITHIN A HIGH ASPECT RATIO INJECTOR

Andrew S. Thompson
Maurice J. Zucrow Laboratories, Department of Aeronautics and Astronautics, Purdue University, West Lafayette, Indiana 47906, USA
Stephen D. Heister
Maurice J. Zucrow Laboratories, Department of Aeronautics and Astronautics, Purdue University, West Lafayette, Indiana, USA

ABSTRAKT

Thermal management issues necessitate the use of fuel as a heat sink for gas turbine and liquid rocket engines. As interest in heated fuels increases, it is important to understand what occurs in the flow path of an injector under flashing conditions. This article describes a flow visualization study to characterize the flow of flashing methanol through two high aspect ratio slot orifice injectors of differing sizes. Flashing conditions inside the injector flow path were induced via a combination of heating and back pressure adjustments. Volume flow rate, pressure measurements, and temperature measurements were made that allowed the discharge characteristics, the level of super heat, and other parameters to be calculated and compared. To give a basis for comparison, the flashing results are compared to the flow through the injector under cavitating conditions. Cavitation and flashing are observed to follow similar trends. As such, they appear to be related phenomena, and this relationship is shown. Bubble formation under cavitating or flashing conditions is observed to attenuate the injector's discharge characteristics. High-speed videos of the flow field were also collected. Several flow regimes and flow structures, unique to these regimes, were observed. The results suggest a possible way to predict an injector's performance under flashing conditions without running heated fuel through the injector. These results may be applicable to real world injector design and testing.


Articles with similar content:

PHASE DOPPLER INTERFEROMETRY VOLUME FLUX SENSITIVITY TO PARAMETRIC SETTINGS AND DROPLET TRAJECTORY
Atomization and Sprays, Vol.21, 2011, issue 7
Rudolf J. Schick, Kyle M. Bade
EXPERIMENTAL INVESTIGATION OF SPRAY CHARACTERISTICS OF MULTI-HOLE AND SLOT GDI INJECTORS AT VARIOUS FUEL TEMPERATURES USING CLOSELY SPACED SPLIT-INJECTION STRATEGIES
Atomization and Sprays, Vol.29, 2019, issue 12
Jianwen Yi, Mark Meinhart, Shengqi Wu
VISUALIZATION OF CAVITATING FLOW WITHIN A HIGH-ASPECT-RATIO SLOT INJECTOR
Atomization and Sprays, Vol.26, 2016, issue 2
Stephen D. Heister, Andrew S. Thompson
FLOW VISUALIZATION OF FOUR-INLET DUCTED ROCKET ENGINE CONFIGURATIONS
Journal of Flow Visualization and Image Processing, Vol.3, 1996, issue 1
Clark W. Hawk, Christopher M. Brophy
NEAR FIELD VISUALIZATION OF DIESEL SPRAY FOR DIFFERENT NOZZLE INCLINATION ANGLES IN NON-VAPORIZING CONDITIONS
Atomization and Sprays, Vol.27, 2017, issue 3
Alberto Viera, Raul Payri, Pedro Marti-Aldaravi, Gabriela Bracho