Flow Behaviour in Centrifugal Impellers

Ramamurthy, S and Murugesan, K and Prithviraj, D (1991) Flow Behaviour in Centrifugal Impellers. In: Tenth International Symposium on Air Breathing Engines, September 1-6, 1991, Nottingham,U.K.. (Submitted)

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    Detailed investigations through hot-wire anemometry at the outlet of a centrifugal compressor impeller reveal a complex nature of flow behavior both spatially across the blade to blade pitch and with respect to time. The relative flow angle and velocity do not fit into the conventional steady state jet-wake model nor the one-dimensional slip theory. A hypothesis that periodic vortices shed from the suction surface well inside the impeller sweeping across the impeller passage is put forward to explain the large variations in flow angle observed

    Item Type: Conference or Workshop Item (Lecture)
    Uncontrolled Keywords: Centrifugal compressors;Flow characteristics;Flow measurement; Impellers;Outlet flow;Hot-wire anemometers;Suction;Vortex shedding
    Subjects: AERONAUTICS > Aeronautics (General)
    AERONAUTICS > Aircraft Propulsion and Power
    Division/Department: Propulsion Division, Propulsion Division, Other
    Depositing User: Dr S Ramamurthy
    Date Deposited: 10 Aug 2010 12:22
    Last Modified: 10 Aug 2010 12:22
    URI: http://nal-ir.nal.res.in/id/eprint/8918

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