Hydrodynamic interference in corrugated pipe whistling

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    2 Citations (Scopus)

    Abstract

    Corrugated pipe whistling is mainly controled by the synchronisation of vortex shedding at each cavity by global acoustic standing waves, pipe modes. The vortex shedding of one cavity can however interfer with the vortex shedding of the next cavity. Such constructive, as well as destructive, interference has been demonstrated for a tandem of two cavities. The significance of this phenomenon is studied for corrugated pipes. The whistling of three pipes with 32 cavities differently distributed over equal total pipe length has been measured. While there is a clear indication for constructive hydrodynamic interference for pipes with sinusoidal corrugations, the results are also affected by the difference in cavity distribution over the standing waves. An acoustical velocity is needed to generate sound. The cavities do not produce sound when placed close to a pressure anti-node. In order to clarify the hydrodynamic interference numerical URANS simulations have been carried out. These indicate a quite significant constructive hydrodynamic interaction.

    Original languageEnglish
    Title of host publication20th International Congress on Sound and Vibration 2013, ICSV 2013
    Pages865-872
    Number of pages8
    Publication statusPublished - 1 Jan 2013
    Event20th International Congress on Sound and Vibration 2013, ICSV 2013 - Bangkok, Thailand
    Duration: 7 Jul 201311 Jul 2013

    Conference

    Conference20th International Congress on Sound and Vibration 2013, ICSV 2013
    CountryThailand
    CityBangkok
    Period7/07/1311/07/13

    Fingerprint

    hydrodynamics
    interference
    cavities
    vortex shedding
    standing waves
    acoustics
    synchronism
    indication
    simulation
    interactions

    Cite this

    Nakiboǧlu, G., Rudenko, O., & Hirschberg, A. (2013). Hydrodynamic interference in corrugated pipe whistling. In 20th International Congress on Sound and Vibration 2013, ICSV 2013 (pp. 865-872). [312]
    Nakiboǧlu, Güneş ; Rudenko, Oleksii ; Hirschberg, Avraham. / Hydrodynamic interference in corrugated pipe whistling. 20th International Congress on Sound and Vibration 2013, ICSV 2013. 2013. pp. 865-872
    @inproceedings{9491e5d7510642b7bf19b4cf8eda08c8,
    title = "Hydrodynamic interference in corrugated pipe whistling",
    abstract = "Corrugated pipe whistling is mainly controled by the synchronisation of vortex shedding at each cavity by global acoustic standing waves, pipe modes. The vortex shedding of one cavity can however interfer with the vortex shedding of the next cavity. Such constructive, as well as destructive, interference has been demonstrated for a tandem of two cavities. The significance of this phenomenon is studied for corrugated pipes. The whistling of three pipes with 32 cavities differently distributed over equal total pipe length has been measured. While there is a clear indication for constructive hydrodynamic interference for pipes with sinusoidal corrugations, the results are also affected by the difference in cavity distribution over the standing waves. An acoustical velocity is needed to generate sound. The cavities do not produce sound when placed close to a pressure anti-node. In order to clarify the hydrodynamic interference numerical URANS simulations have been carried out. These indicate a quite significant constructive hydrodynamic interaction.",
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    Nakiboǧlu, G, Rudenko, O & Hirschberg, A 2013, Hydrodynamic interference in corrugated pipe whistling. in 20th International Congress on Sound and Vibration 2013, ICSV 2013., 312, pp. 865-872, 20th International Congress on Sound and Vibration 2013, ICSV 2013, Bangkok, Thailand, 7/07/13.

    Hydrodynamic interference in corrugated pipe whistling. / Nakiboǧlu, Güneş; Rudenko, Oleksii; Hirschberg, Avraham.

    20th International Congress on Sound and Vibration 2013, ICSV 2013. 2013. p. 865-872 312.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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    N2 - Corrugated pipe whistling is mainly controled by the synchronisation of vortex shedding at each cavity by global acoustic standing waves, pipe modes. The vortex shedding of one cavity can however interfer with the vortex shedding of the next cavity. Such constructive, as well as destructive, interference has been demonstrated for a tandem of two cavities. The significance of this phenomenon is studied for corrugated pipes. The whistling of three pipes with 32 cavities differently distributed over equal total pipe length has been measured. While there is a clear indication for constructive hydrodynamic interference for pipes with sinusoidal corrugations, the results are also affected by the difference in cavity distribution over the standing waves. An acoustical velocity is needed to generate sound. The cavities do not produce sound when placed close to a pressure anti-node. In order to clarify the hydrodynamic interference numerical URANS simulations have been carried out. These indicate a quite significant constructive hydrodynamic interaction.

    AB - Corrugated pipe whistling is mainly controled by the synchronisation of vortex shedding at each cavity by global acoustic standing waves, pipe modes. The vortex shedding of one cavity can however interfer with the vortex shedding of the next cavity. Such constructive, as well as destructive, interference has been demonstrated for a tandem of two cavities. The significance of this phenomenon is studied for corrugated pipes. The whistling of three pipes with 32 cavities differently distributed over equal total pipe length has been measured. While there is a clear indication for constructive hydrodynamic interference for pipes with sinusoidal corrugations, the results are also affected by the difference in cavity distribution over the standing waves. An acoustical velocity is needed to generate sound. The cavities do not produce sound when placed close to a pressure anti-node. In order to clarify the hydrodynamic interference numerical URANS simulations have been carried out. These indicate a quite significant constructive hydrodynamic interaction.

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    Nakiboǧlu G, Rudenko O, Hirschberg A. Hydrodynamic interference in corrugated pipe whistling. In 20th International Congress on Sound and Vibration 2013, ICSV 2013. 2013. p. 865-872. 312