Unidirectional JMC actuators in the active attenuation of noise in ducts with uniform axial flow

Seppo Uosukainen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

    Abstract

    The JMC actuators need a monopole and a dipole radiator. The planar monopole and dipole source types and their source strengths, especially to be applied to the JMC method, are defined with the uniform flow present. They depend on the Mach number of the flow. JMC based unidirectional two-element source configuration in a duct is introduced in the case of uni-form axial flow. The elements produce both the monopole and dipole parts of radiation. The solution can be realized with no inter-channel delays, even in the case of flow, which is advantageous in the practical implementation of digital control systems.
    Original languageEnglish
    Title of host publicationInternoise 2001: Proceedings of the 2001 International Congress and Exhibition on Noise Control Engineering
    PublisherInstitute of Noise Control Engineering
    Pages629-634
    ISBN (Print)90-806554-3-0, 90-806554-2-2
    Publication statusPublished - 2001
    MoE publication typeB3 Non-refereed article in conference proceedings
    EventInternational Congress and Exhibition on Noise Control Engineering, Inter-Noise 2001 - The Hague, Netherlands
    Duration: 27 Aug 200130 Aug 2001

    Conference

    ConferenceInternational Congress and Exhibition on Noise Control Engineering, Inter-Noise 2001
    CountryNetherlands
    CityThe Hague
    Period27/08/0130/08/01

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  • Cite this

    Uosukainen, S. (2001). Unidirectional JMC actuators in the active attenuation of noise in ducts with uniform axial flow. In Internoise 2001: Proceedings of the 2001 International Congress and Exhibition on Noise Control Engineering (pp. 629-634). Institute of Noise Control Engineering.