Radiation from a lined duct in uniform flow

Peter Møller Juhl

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    This paper presents a boundary element formulation for modelling the sound field inside and outside a duct in uniform flow. The model is the first step towards models for predicting the noise radiated from turbo fan engines. For this purpose the frequency range is very large (up to ka=40), and non-axisymmetric excitation is important (spinning modes). In addition the model allows the duct to be partially or fully treated with an axisymmetric locally reacting liner. Results determined with the model are compared with results from the literature and results calculated with an analytic model.
    Original languageEnglish
    Title of host publicationProceedings of Sixth International Congress on sound and Vibration
    Place of PublicationLyngby
    PublisherDepartment of Acoustic Technology, Technical University of Denmark
    Publication date1999
    Pages595-602
    Publication statusPublished - 1999
    Event6th International Congress on Sound and Vibration - Kgs. Lyngby, Denmark
    Duration: 5 Jul 19998 Jul 1999
    Conference number: 6

    Conference

    Conference6th International Congress on Sound and Vibration
    Number6
    CountryDenmark
    CityKgs. Lyngby
    Period05/07/199908/07/1999

    Cite this

    Juhl, P. M. (1999). Radiation from a lined duct in uniform flow. In Proceedings of Sixth International Congress on sound and Vibration (pp. 595-602). Lyngby: Department of Acoustic Technology, Technical University of Denmark.
    Juhl, Peter Møller. / Radiation from a lined duct in uniform flow. Proceedings of Sixth International Congress on sound and Vibration. Lyngby : Department of Acoustic Technology, Technical University of Denmark, 1999. pp. 595-602
    @inproceedings{1eec94056abc41ae9ec03dbbee1866d1,
    title = "Radiation from a lined duct in uniform flow",
    abstract = "This paper presents a boundary element formulation for modelling the sound field inside and outside a duct in uniform flow. The model is the first step towards models for predicting the noise radiated from turbo fan engines. For this purpose the frequency range is very large (up to ka=40), and non-axisymmetric excitation is important (spinning modes). In addition the model allows the duct to be partially or fully treated with an axisymmetric locally reacting liner. Results determined with the model are compared with results from the literature and results calculated with an analytic model.",
    author = "Juhl, {Peter M{\o}ller}",
    year = "1999",
    language = "English",
    pages = "595--602",
    booktitle = "Proceedings of Sixth International Congress on sound and Vibration",
    publisher = "Department of Acoustic Technology, Technical University of Denmark",

    }

    Juhl, PM 1999, Radiation from a lined duct in uniform flow. in Proceedings of Sixth International Congress on sound and Vibration. Department of Acoustic Technology, Technical University of Denmark, Lyngby, pp. 595-602, 6th International Congress on Sound and Vibration, Kgs. Lyngby, Denmark, 05/07/1999.

    Radiation from a lined duct in uniform flow. / Juhl, Peter Møller.

    Proceedings of Sixth International Congress on sound and Vibration. Lyngby : Department of Acoustic Technology, Technical University of Denmark, 1999. p. 595-602.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    TY - GEN

    T1 - Radiation from a lined duct in uniform flow

    AU - Juhl, Peter Møller

    PY - 1999

    Y1 - 1999

    N2 - This paper presents a boundary element formulation for modelling the sound field inside and outside a duct in uniform flow. The model is the first step towards models for predicting the noise radiated from turbo fan engines. For this purpose the frequency range is very large (up to ka=40), and non-axisymmetric excitation is important (spinning modes). In addition the model allows the duct to be partially or fully treated with an axisymmetric locally reacting liner. Results determined with the model are compared with results from the literature and results calculated with an analytic model.

    AB - This paper presents a boundary element formulation for modelling the sound field inside and outside a duct in uniform flow. The model is the first step towards models for predicting the noise radiated from turbo fan engines. For this purpose the frequency range is very large (up to ka=40), and non-axisymmetric excitation is important (spinning modes). In addition the model allows the duct to be partially or fully treated with an axisymmetric locally reacting liner. Results determined with the model are compared with results from the literature and results calculated with an analytic model.

    M3 - Article in proceedings

    SP - 595

    EP - 602

    BT - Proceedings of Sixth International Congress on sound and Vibration

    PB - Department of Acoustic Technology, Technical University of Denmark

    CY - Lyngby

    ER -

    Juhl PM. Radiation from a lined duct in uniform flow. In Proceedings of Sixth International Congress on sound and Vibration. Lyngby: Department of Acoustic Technology, Technical University of Denmark. 1999. p. 595-602