Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Shusaku Kagawa"'
Publikováno v:
Journal of Fluid Science and Technology, Vol 2, Iss 1, Pp 130-138 (2007)
Efficiency of a centrifugal pump is known to drop rapidly with a decrease of specific speed ns in the range of ns ≤ 100 [m,m3/min,min-1]. However, below ns = 60, the pump efficiency is not yet clear, and the spiral angle of a volute casing becomes
Externí odkaz:
https://doaj.org/article/14a3eb8ceed74963ae46cceb26255198
Autor:
Motohiko Nohmi, Donghyuk Kang, Shusaku Kagawa, Kazuhiko Yokota, Byungjin An, Satoshi Yamazaki
Publikováno v:
International Journal of Fluid Machinery and Systems. 12:89-98
Publikováno v:
Volume 3B: Fluid Applications and Systems.
There is a contraction portion in the water supply pipe line system, and cavitation may occur in the contraction when the flow velocity is increased. Such a situation occurs widely in the throat of the fluid machineries and in the vicinity of the val
Autor:
Naoki Matsushita, Shusaku Kagawa
Publikováno v:
Volume 1A, Symposia: Keynotes; Advances in Numerical Modeling for Turbomachinery Flow Optimization; Fluid Machinery; Industrial and Environmental Applications of Fluid Mechanics; Pumping Machinery.
This paper discussed about suppressions of cavitation surge in a double suction centrifugal pump. In order to suppress the cavitation surge, CFD simulation was carried out. Cavitation surge was observed near the best efficiency point, and it was diff
Autor:
Shusaku Kagawa, Kazuhiko Yokota, Motohiko Nohmi, Satoshi Yamazaki, Byungjin An, Donghyuk Kang
Publikováno v:
Volume 1A, Symposia: Keynotes; Advances in Numerical Modeling for Turbomachinery Flow Optimization; Fluid Machinery; Industrial and Environmental Applications of Fluid Mechanics; Pumping Machinery.
Pump cavitation surge is highly coupled phenomenon with unsteady cavitation inside a pump and system dynamics of the pipe flow surrounding the pump. The piping system flow dynamics can be calculated under two kinds of assumptions; lumped parameter sy
Publikováno v:
International Journal of Fluid Machinery and Systems. 7:94-100
In double-suction centrifugal pumps, it was found that cavitation instabilities occur with vibration and a periodic chugging noise. The present study attempts to identify cavitation instabilities in the double-suction centrifugal pump by the experime
Autor:
B. An, Motohiko Nohmi, Donghyuk Kang, T. Maeda, T. Tsuneda, Wakana Tsuru, Shusaku Kagawa, Kazuhiko Yokota
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 240:032049
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 240:062025
Autor:
Takaki Sakurai, Shusaku Kagawa
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 240:032040
Autor:
Tomoki Tsuneda, Motohiko Nohmi, Wakana Tsuru, Shusaku Kagawa, Kenyuu Matsumoto, Kazuhiko Yokota, Tomoshige Maeda
Publikováno v:
The Proceedings of Conference of Kanto Branch. :18B04