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Atomization of water jets and sheets in axial and swirling airflowsAxial and swirling airflows were used to break up water jets and sheets into sprays of droplets to determine the overall effects of orifice diameter, weight flow of air, and the use of an air swirler on fineness of atomization as characterized by mean drop size. A scanning radiometer was used to determine the mean drop diameter of each spray. Swirling airflows were produced with an axial combustor, 70 deg blake angle, air swirling. Water jets were injected axially upstream, axially downstream and cross stream into the airflow. In addition, pressure atomizing fuel nozzles which produced a sheet and ligament type of breakup were investigated. Increasing the weight flow rate of air or the use of an air swirling markedly reduced the spray mean drop size. Test conditions included a water flow rate of 68.0 liter per hour and airflow rates (per unit area) of 3.7 to 25.7 g per square cm per sec, at 293 K and inlet-air static pressures of 1.01 x 10 to the 5th to 1.98 x 10 to the 5th N/sq m.
Document ID
19790046543
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ingebo, R. D.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 9, 2013
Publication Date
March 1, 1979
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
ASME PAPER 79-GT-170
Meeting Information
Meeting: American Society of Mechanical Engineers, Gas Turbine Conference and Exhibit and Solar Energy Conference
Location: San Diego, CA
Start Date: March 12, 1979
End Date: March 15, 1979
Sponsors: American Society of Mechanical Engineers
Accession Number
79A30556
Distribution Limits
Public
Copyright
Other

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