Browsing by Author "Zucchini, Marco"

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    Experimental and numerical aeroacoustic investigation of impinging flows at low Mach number
    (2007) Zucchini, Marco; Munz, Claus-Dieter (Prof. Dr. rer. nat. habil.)
    This work presents the development of methods for the experimental and numerical investigation of flow-induced noise. Moreover it offers a systematic validation and comparison of various numerical prediction techniques for small Mach number aeroacoustics. The work is motivated from the need to validate all the calculation steps of aeroacoustic simulations beyond pure analytical solutions. This encompasses the fluid dynamics and source calculations up to the propagation of sound for problems of technical interest. The configurations investigated are chosen to ensure geometrical simplicity, given the limitations associated with the numerical calculations of complex geometries, in addition to geometrical relevance with respect to technical problems. The investigation concentrates on the numerical calculations of a low subsonic jet impinging on flat inclined plates with various downstream obstacles. Particular focus is placed on broad band noise contributions.