Noise generated by impingement of a planar jet on a flat plate
Keywords:Aluminum, Jet aircraft, Nozzles, Centrifugal blower, Inclination angle, Infinite flat plate, Uniform flow distribution
AbstractAcoustic excitation of planar jets impinging on an infinite flat plate, as well as the effects of plate inclination on the generated acoustic tones were examined. All experimental work was conducted using a planar air jet constructed out of Plexiglas® and Aluminum. A series of internal baffles located immediately upstream of the nozzle outlet were utilized to ensure uniform flow exiting across the jet span. The jet was pressurized by a 10 HP Sonic Air Systems 70 Series centrifugal blower connected to a piping system and plumbed to an air plenum feeding both ends of the jet, to ensure uniform flow distribution. The effect of jet-plate inclination, both in the stream- wise and span-wise directions, was investigated as a method to reduce the intensity of the tone generation of the jet-plate tones. The amplitude of the acoustic jet-plate tones was found to be much more sensitive to span-wise inclination than to stream-wise inclination angle.
How to Cite
Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i) to publish, reproduce, distribute, display and store the Contribution;
ii) to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii) to exploit all subsidiary rights in the Contribution,
iv) to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v) to licence any third party to do any or all of the above.