A concept for simultaneous high-frequency actuation of liquid spray characteristics

Chris Martin, Steve Lepera, Uri Vandsburger, Craig English

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Herein, we propose the Synchronously Actuated Response Atomizer (SARA) concept to address three target needs in the area of thermo-acoustic research in liquid-fueled systems; sufficiently broad frequency response to span the flame's bandwidth without encountering significant actuator dynamics, independent actuation of various spray characteristics thought to be relevant to the flame response, reduced size and cooling requirementsmaking it practical to implement the device in a research combustor. We propose physical mechanisms by which a device might be able to control three characteristics at high frequency (ideally as high as 1kHz); mass flow, droplet distribution, and cone angle. These mechanisms are described by simple models and validated in low frequency experiments. The details of the high-frequency design are also provided.

Original languageEnglish (US)
Title of host publication48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781600867392
DOIs
StatePublished - 2010

Publication series

Name48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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    Martin, C., Lepera, S., Vandsburger, U., & English, C. (2010). A concept for simultaneous high-frequency actuation of liquid spray characteristics. In 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition [2010-0611] (48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition). American Institute of Aeronautics and Astronautics Inc.. https://doi.org/10.2514/6.2010-611