This paper predicts the speed-power-rpm relationship in regular head waves using various indirect methods: load variation, direct powering, resistance and thrust identity, torque and revolution, thrust and revolution, and Taylor expansion methods. The subject ship is KVLCC2. The wave conditions are the regular head waves of λ/LPP = 0.6 and 1.0 with three wave steepness ratios at three ship speeds of 13.5, 14.5 and 15.5 knots (design speed). In the case of λ/LPP = 0.6 at design speed, two more wave steepness ratios have been taken into consideration. The indirect methods have been evaluated through comparing the speed-power-rpm relationships with those obtained from the resistance and self-propulsion tests in calm water and in waves. The load variation method has been applied to predict propulsive performances in waves, and to derive overload factors (ITTC, 2018). The overload factors have been applied to obtain propulsive efficiency and propeller revolution. The thrust and revolution method (ITTC, 2014) has been modified.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Comparative study on the prediction of speed-power-rpm of the KVLCC2 in regular head waves using model tests


    Beteiligte:
    Jin-Won Yu (Autor:in) / Cheol-Min Lee (Autor:in) / Jin-Hyeok Seo (Autor:in) / Ho Hwan Chun (Autor:in) / Jung-Eun Choi (Autor:in) / Inwon Lee (Autor:in)


    Erscheinungsdatum :

    2021




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt





    TURNING CHARACTERISTICS OF KVLCC2 IN REGULAR HEAD AND BEAM WAVES

    Kim, D. J. / Yun, K. / Park, J. Y. et al. | TIBKAT | 2018


    A numerical investigation on the nominal wake of KVLCC2 model ship in regular head waves

    Hyun-Woo Shin / Kwang-Jun Paik / Yoon-Ho Jang et al. | DOAJ | 2020

    Freier Zugriff

    Numerical study of ship motions and added resistance in regular incident waves of KVLCC2 model

    Yavuz Hakan Ozdemir / Baris Barlas | DOAJ | 2017

    Freier Zugriff