A research facility for film cooling investigations with emphasis on the instrumentation system

Manickam, MD (1987) A research facility for film cooling investigations with emphasis on the instrumentation system. Technical Report. National Aeronautical Laboratory, Bangalore, India.

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    Abstract

    The report describes the layout aspects and the instrumentation details of the facility, meant for film cooling investigation. The injectant air is hated and the main flow air remains at ambient temperature while the temperature ratio on tween the injectant and the main flow is simulated. Through this in expensive method, an experimental program is being carried out to study the lift off/attachment characteristic, the nature of stream wise penetration and the lateral spreading of the injectant film for discrete hole injection configuration in an accelerating turbine blade passage. Though detailed study of the injectant film in case of flat plate13; has been carried out by many researchers, little work has been done on the above said topic in case of actual blades and many regions remain unexplored in this discrete hole cooling process which is considered as one of the most promising cooling process for turbine blades. The aim of the experimental work will be too obtain details13; of flow and , mixing in the vicinity of the injection holes, including the upstream and the downstream regions and the instrumentation system has been geared to meet this demand.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Film cooling;Cascade tunnel;Instrumentation
    Subjects: AERONAUTICS > Aerodynamics
    Division/Department: Propulsion Division
    Depositing User: M/S ICAST NAL
    Date Deposited: 13 Nov 2006
    Last Modified: 24 May 2010 09:53
    URI: http://nal-ir.nal.res.in/id/eprint/3397

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