Mixing characteristics of a ducted, elliptical jet with dump

Conference · Wed Jan 01 00:00:00 EST 1986

OSTI ID:5926364

Schadow, K C; Wilson, K J; Parr, D M; Gutmark, E

Mixing between elliptical ducted air-jets with dump and nitrogen radially injected through the duct walls was experimentally studied using hot-wire anemometry and gas-sampling techniques. Mixing was considerably increased when the air-jet was issued from elliptical relative to circular jet-exit cross-sections. Elliptical jets issued from orifices provided better mixing than issued from pipes. Additional mixing enhancement was achieved when the elliptical jets were acoustically forced by excited resonant pressure waves of the duct. The mean and turbulence velocity measurements provided insight into the mechanism of the observed mixing enhancement.

• OSTI ID: 5926364
• Report Number(s): CONF-8606184-
• Resource Relation: Conference: 22. joint propulsion conference, Huntsville, AL, USA, 16 Jun 1986
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
FUEL INJECTION SYSTEMS
MIXING
MONITORING
ACOUSTICS
AIR
AIR FLOW
DUCTS
ELLIPTICAL CONFIGURATION
FLOW RATE
FUEL-AIR RATIO
GAS ANALYSIS
HOT WIRE ANEMOMETERS
JETS
NITROGEN
RESONANCE
TURBULENCE
ANEMOMETERS
CONFIGURATION
ELEMENTS
FLUID FLOW
FLUIDS
FUEL SYSTEMS
GAS FLOW
GASES
MEASURING INSTRUMENTS
NONMETALS
330603* - Vehicle Design Factors- Engine System