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Journal of Fluid Science and Technology, 2007 The purpose of this study is to develop a swimming human simulation model considering rigid body dynamics and unsteady fluid force for the whole body, which will be utilized to analyze various dynamical problems in human swimming.
Motomu NAKASHIMA +2 more
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Journal of Fluid Science and Technology, 2012 The objectives of this study were to measure the unsteady fluid force acting on the trunk of a swimmer using the ‘swimmer mannequin robot’ and to model the fluid forces based on the formulation of the swimming human simulation model SWUM ...
Motomu NAKASHIMA, Yusuke EJIRI
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Nihon Kikai Gakkai ronbunshu, 2023 We conducted a study on unsteady characteristics of fluid-dynamic force acting on a pitching NACA0012 wing with linear leading edge (Baseline) and with leading edge protuberance (Wave) in low Reynolds number region (Re =4.32×104) for the development of ...
Kazuki DOI +3 more
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Study on Criterion of Acoustic Resonant Vibration with Unsteady Fluid Dynamic Force.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1998 Ducts containing a tube bundle undergo acoustic resonant vibration. It is considered that the acoustic vibration is a kind of forced vibration by means of Karman vortex. However, it will be more reasonable to think that the vibration is a kind of mutual excited vibration, because fluid dynamic force excites a sound pressure and the sound pressure also ...
Hiroki Tanaka +3 more
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Clarification of Unsteady Fluid Forces Acting on Limbs in Swimming Using an Underwater Robot Arm
Journal of Fluid Science and Technology, 2012 The objective of this study was to clarify the unsteady characteristics of the fluid force acting on limbs during swimming. For this objective, an underwater robot arm, which has five degrees-of-freedom in order to perform the various complicated limb ...
Motomu NAKASHIMA, Akemi TAKAHASHI
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Nihon Kikai Gakkai ronbunshu, 2014 Dynamic response of the fluid force acting on an axially oscillating balance piston was numerically investigated. The balance piston of a rocket engine turbopump was modeled and forced to oscillate in the axial direction.
Toshiya KIMURA +4 more
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Characteristics of Unsteady Fluid Force Acting on a Rotating Cylinder Partially Submerged in Water.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1993 This paper deals with an experimental investigation of unsteady fluid force acting on a rotating cylinder partially submerged in water. The rotating cylinder partially submerged in water is excited in one direction at a constant amplitude, and we measure the strain of the shaft installed in the rotating cylinder, displacement, and rotational angle for ...
Naotomo Maruyama, Fumio HARA
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Numerical Analysis of the Unsteady Fluid Force Acting on an Axially Oscillating Balance Piston
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 2012 Dynamic response of the fluid force acting on an axially oscillating balance piston was numerically investigated. The balance piston of a rocket engine turbopump was modeled and forced to oscillate in the axial direction. The flow field around the rotor was simulated using unsteady CFD simulation changing the oscillation frequency.
Toshiya Kimura +2 more
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The Proceedings of the JSME Annual Meeting, 2008 Kazuki Tanaka, Hiroaki HASEGAWA
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The Proceedings of the JSME Annual Meeting, 2010 Yusuke EJIRI, Motomu NAKASHIMA
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