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Acoustic heating effects in Hartmann whistle
Published in Multi-Science Publishing Co. Ltd
2013
Volume: 12
   
Issue: 5-6
Pages: 557 - 578
Abstract
This paper systematically explores the heating effects in a Hartmann whistle. Effects of thermal losses on the end-wall heating of the whistle are demonstrated by conducting experiments on bare metal cavities, insulated metal cavities, and in wooden cavities. The heating studies are done on wooden cavities of three different configurations, namely, regular cylindrical, stepped and conical ones. The cavity with conical geometry is observed to provide the maximum heating effect at the end-wall. Further, the effects of various parameters such as nozzle pressure ratio, cavity length, and stand-off distance on the end-wall heating of the cavities are also studied. The relationship between acoustic resonance and heating effects are established.
About the journal
JournalInternational Journal of Aeroacoustics
PublisherMulti-Science Publishing Co. Ltd
ISSN1475472X
Open AccessNo
Concepts (9)
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    ACOUSTIC HEATING
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    ACOUSTIC RESONANCE
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    CONICAL GEOMETRY
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    HARTMANN WHISTLE
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    HARTMANN-SPRENGER TUBES
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    METAL CAVITIES
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    Nozzle pressure ratio
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    STAND-OFF DISTANCE (SOD)
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    Heating