Search Results 1-8 of 8

  • Air Entrainment and Combustion Process of High-Pressure Gas Jet in Gas Direct Injection Engines

    Thiripuvanam Tharshan , Tashima Hiroshi , Tsuru Daisuke

    … It is necessary to investigate air entrainment behavior of a high-pressure gas jet and to optimize the injection conditions of GI engines. … The estimated air entertainment mass clarified the difference clear between a diesel spray and a high-pressure gas jet in their air entrainment process. …

    The Proceedings of the International symposium on diagnostics and modeling of combustion in internal combustion engines 2017.9(0), C304, 2017

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  • EXPERIMENTAL STUDY ON HYDRAULIC CHRACTERISTICS OF VORTEX-SUPPRESSING DEVICE IN VERTICAL INTAKE FACILITY USING PTV MEASUREMENTS  [in Japanese]

    HISASUE Nobuyuki , TAKEHARA Kohsei , SHINDOU Seishiro , TAKANO Yasuhide

    …  In general intake facilities of hydroelectric power stations, intake vortices cause the air-hammer phenomena in the intake tunnel and the cavitation phenomena at blades of a water turbine generator by air-entrainments. …

    Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 72(4), I_571-I_576, 2016

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  • STUDY ON HYDRAULIC CHARACTERISTICS OF INTAKE VORTEX OF VERTICAL INTAKE FACILITY USING PTV  [in Japanese]

    HISASUE Nobuyuki , TAKEHARA Kohsei , SHINDOU Seishiro , TAKANO Yasuhide

    … In intake facilities of a hydroelectric power station, intake vortices cause an air-hammer in an intake tunnel and a cavitation at turbine blades of a water turbine generator by air-entrainments. …

    Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 71(4), I_523-I_528, 2015

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  • EXPERIMENTAL STUDY ON EFFECTS OF VORTEX-PREVENTING DEVICES FOR SUPPRESSING AIR ENTRAINMENT INSIDE SURFACE INTAKE FACILITY  [in Japanese]

    TAKEHARA Kohsei , HISASUE Nobuyuki , TAKANO Yasuhide

    Air entrainments by vortices at water surfaces inside surface intake facilities of electrical power plants cause some problems, such as deterioration of power generation, destruction of blade in a turbine, etc. … To suppress air entrainments by the vortices, some vortex-preventing devices have been proposed and have been used in many electrical power plants. …

    Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 70(4), I_757-I_762, 2014

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  • EXPERIMENTAL STUDY OF AIR ENTRAINMENT AND FLOW IN OUTLET PIT

    OCHIAI Minoru , ENDO Shigekatsu , WADA Akira

    … The characteristics of the circulation flow were investigated for the water flow with the air entrainment slightly from the free water surface in a three-dimensional rectangular outlet pit. … At first, the air entrainment pattern was classified into two types by the visual observations.<BR>Measurement of the flow velocity distribution in the pit revealed that the dominant types of flow include circulating flow and vertical eddies. …

    PROCEEDINGS OF HYDRAULIC ENGINEERING (49), 835-840, 2005

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  • C105 HEAT/MASS TRANSFER OF ARRAY IMPINGING JETS WITH PROTRUDING EFFUSION HOLES EJECTING SPENT AIR

    Hwang Sang Dong , Rhee Dong Ho , Yoon Pil Hyun , Cho Hyung Hee

    … For small gap distances, heat/mass transfer coefficients without effusion holes are very non-uniform due to the strong effects of crossflow and re-entrainments of spent air. …

    The Proceedings of the International Conference on Power Engineering (ICOPE) 2003.1(0), _1-155_-_1-160_, 2003

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  • Comparison of Theoretical Predictions and Experimental Results on Air-Entrainments in Diesel Fuel Sprays  [in Japanese]

    CHIKAHISA Takemi , FUJITA Masaya , MURAYAMA Tadashi , TOSAKA Shigeru

    … This paper presents a theory and its experimental validation for air entrainment changes in fuel sprays in DI diesel engines. … The theory predicts air entrainment changes for a variety of swirl speeds, numbers of nozzle holes, nozzle diameters, engine speeds, injection speeds and fuel densities. …

    Transactions of the Japan Society of Mechanical Engineers. Series B. 00061(00590), 3588-3596, 1995-10-25

    References (15)

  • Comparison of Theoretical Predictions and Experimental Results on Air-Entrainments in Diesel Fuel Sprays.  [in Japanese]

    Chikahisa Takemi , Fujita Masaya , Murayama Tadashi , Tosaka Shigeru

    … This paper presents a theory and its experimental validation for air entrainment changes in fuel sprays in DI diesel engines. … The theory predicts air entrainment changes for a variety of swirl speeds, numbers of nozzle holes, nozzle diameters, engine speeds, injection speeds and fuel densities. …

    TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 61(590), 3588-3596, 1995

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