The temporal nature of in-cabin wind noise heard whilst driving is not generally reproduced in wind tunnels, since turbulence arising from the atmosphere and wakes of other vehicles are not stimulated. For this work, turbulence was generated in the IVK Wind Tunnel, either by means of a large plate in the settling chamber or a small car placed in the nozzle exit. In-cabin noise and external flow properties were measured for a test car under the above conditions and also on-road. Whilst similar turbulence intensities to those measured on-road were measured in the tunnel, acoustic spectra showed little difference between the test conditions, although subjectively the sounds were different. Modulation analysis (a type of time-fequency analysis ) revealed the temporal nature of the sound. It was concluded that further emphasis be placed on developing methods to more closely represent the nature of the human auditory system to temporal fluctuations and for simulating the real flow environment in wind tunnels.


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    Titel :

    The effect of turbulence on wind noise: a road and wind-tunnel study


    Weitere Titelangaben:

    Einfluss von Turbulenzen auf das Windgeräusch: Straßen- und Windkanal-Untersuchungen


    Beteiligte:
    Watkins, S. (Autor:in) / Riegel, M. (Autor:in) / Wiedemann, J. (Autor:in)


    Erscheinungsdatum :

    2001


    Format / Umfang :

    15 Seiten, 11 Bilder, 15 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    The effect of turbulence on wind noise: a road and wind-tunnel study

    Watkins,S. / Riegel,M. / Wiedemann,J. et al. | Kraftfahrwesen | 2001


    Effects of On-Road Turbulence on Automotive Wind Noise: Comparing Wind-Tunnel and On-Road Tests

    Peric, Christian / Lindqvist, Elizabeth / Saunders, Jeff et al. | SAE Technical Papers | 1997


    Effects of On-Road Turbulence on Automotive Wind Noise: Comparing Wind-Tunnel and On-Road Tests

    Peric, C. / Watkins, S. / Lindqvist, E. et al. | British Library Conference Proceedings | 1997



    Effects of on-road turbulence on automotive wind noise: comparing wind-tunnel and on-road tests

    Peric,C. / Watkins,S. / Lindqvist,E. et al. | Kraftfahrwesen | 1997