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  • Open Access

    ABSTRACT

    FLOW CONTROL RESEARCH AT NASA GLENN FOR GAS TURBINE ENGINES

    D. R. Reddy1

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.18, No.4, pp. 107-112, 2011, DOI:10.3970/icces.2011.018.107

    Abstract Flow control is used on aerodynamic surfaces to improve flow quality by reducing or eliminating undesirable flow features such as thick boundary layers and possible flow separation that lead to large energy losses resulting in negative impact on performance of the flow device. As the demand for more efficient gas turbine engines increases in the future, flow control technology in various components of the engine will be critical in enabling the future designs to meet the necessary performance requirements.

    Technology advancement in gas turbine engines used for aerospace propulsion has been focused on achieving significant… More >

  • Open Access

    ARTICLE

    TURBINE BLADE FILM COOLING USING PSP TECHNIQUE

    Je-Chin Han*, Akhilesh P. Rallabandi

    Frontiers in Heat and Mass Transfer, Vol.1, No.1, pp. 1-21, 2010, DOI:10.5098/hmt.v1.1.3001

    Abstract Film cooling is widely used to protect modern gas turbine blades and vanes from the ever increasing inlet temperatures. Film cooling involves a very complex turbulent flow-field, the characterization of which is necessary for reliable and economical design. Several experimental studies have focused on gas turbine blade, vane and end-wall film cooling over the past few decades. Measurements of heat transfer coefficients, film cooling effectiveness values and heat flux ratios using several different experimental methods have been reported. The emphasis of this current review is on the Pressure Sensitive Paint (PSP) mass transfer analogy to More >

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