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Aeroacoustics investigation of unsteady incompressible cavity flow [Zamana baǧli sikiştirilamaz kavite akişinin aeroakustik analizi]
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نویسنده
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zafer b. ,coşgun f.
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منبع
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journal of the faculty of engineering and architecture of gazi university - 2016 - دوره : 31 - شماره : 3 - صفحه:665 -675
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چکیده
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In this study,unsteady incompressible flow field and aerodynamically generated noise of 2d and 3d cavity flows are investigated. in the case of 2d flow fields,standard k-ϵ,standard k-ω and sst k-ω is used and in the 3d case,flow field is computed using standard k-ω turbulence model. all numerical results are compared and validated with experimental measurement for low reynolds and mach numbers. all unsteady flow fields results are used to compute a cavity noise using ffowcs william - hawking (fw-h) acoustics analogy. in the case of 3d cavity,the effect of quadrapole terms on the aerodynamically generated noise is investigated defining permeable interior surface.
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کلیدواژه
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Acoustic analogy; Aeroacoustics; Cavity flow; Low reynolds number
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آدرس
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istanbul teknik üniversitesi,mühendislik fakültesi,makina mühendisliǧi bölümü,istanbul, Turkey, istanbul teknik üniversitesi,mühendislik fakültesi,makina mühendisliǧi bölümü,istanbul, Turkey
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Authors
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