Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Yasutaka Kawanami"'
Autor:
Masahiro Tamashima, Kenichi Kume, Yasutaka Kawanami, Nobuaki Sakamoto, Hikaru Kamiirisa, Kenji Mokuo
Publikováno v:
Ocean Engineering. 178:104-133
Due to the EEDI regulation, recent merchant ships have strictly been required to achieve certain rate of energy saving, and thus equipment of energy saving devices (ESDs) has been quite popular. The purpose of this study is to investigate the working
Autor:
Yasutaka Kawanami, Kunihide Ohashi, Hiroshi Kobayashi, Hikaru Kamiirisa, Nobuaki Sakamoto, Björn Windén
Publikováno v:
Applied Ocean Research. 105:102417
Two merchant ships (1,600TEU container ship, 63,000DWT bulk carrier with a type of pre-swirl duct energy saving device in the stern) are subjected to viscous CFD analysis aiming to investigate the capability of viscous CFD to estimate stern wake in f
Publikováno v:
Journal of Ship Research. 57:24-41
Reynolds-averaged Navier-Stokes simulations together with verification and validation studies for a low L/B twin-skeg container ship are carried out using SURF version 6.44, which is a high-fidelity RANS solver for ship hydrodynamics developed at the
Publikováno v:
Journal of the Japan Society of Naval Architects and Ocean Engineers. 17:9-17
The authors propose a practical method to estimate the reduction rate of propeller-induced pressure fluctuations due to the backward rake around the blade tip. The designed geometrical shape of propeller blades decisively affects the propeller perfor
Publikováno v:
International Journal of Offshore and Polar Engineering. 26
The quasi-continous method (QCM) was applied to open-water thrust and torque predictions of ducted propellers with different positions of the propeller and duct. Two methods to calculate the resultant velocity were discussed. The QCM results are in g
Autor:
Susumu Uematsu, Tsuyoshi Takabatake, Shinobu Sugasawa, Yasuaki Ishihara, Yasutaka Kawanami, Yoshio Namba, Kazumi Tani, Masaru Yoshioka
Publikováno v:
Journal of High Temperature Society. 37:298-305
Autor:
Yasutaka Kawanami
Publikováno v:
Journal of The Japan Institute of Marine Engineering. 45:662-665
Autor:
Kazumi Tani, Susumu Uematsu, Takeshi Takabatake, Masaru Yoshioka, Yoshio Namba, Yasuaki Ishihara, Yasutaka Kawanami, Takahiro Mishima
Publikováno v:
Journal of High Temperature Society. 35:301-307
Publikováno v:
JSME International Journal Series B. 45:655-661
Collapsing stage of cloud cavity and resulting violent shock pressure have been investigated by many researchers, because the knowledge of cavitation erosion is of practical importance and the dynamics is one of the most challenging problems in the f
Autor:
Yasutaka Kawanami, Hiroharu Kato, Hajime Yamaguchi, Masaharu Tanimura, Yoshinori Tagaya, Masatsugu Maeda
Publikováno v:
Journal of the Society of Naval Architects of Japan. 1995:41-50
This paper describes the experimental result of cloud cavitation on a two-dimensional foil. Cloud cavitation was observed by a high speed camera and a high speed video camera to know the mechanism of cloud cavitation. Ink was injected to investigate