Results 1 to 10 of about 2,935,132 (222)

Clarification of Unsteady Fluid Forces Acting on Limbs in Swimming Using an Underwater Robot Arm

open access: yesJournal 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
doaj   +5 more sources

Development of Swimming Human Simulation Model Considering Rigid Body Dynamics and Unsteady Fluid Force for Whole Body

open access: yesJournal 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
doaj   +3 more sources

Measurement and Modeling of Unsteady Fluid Force Acting on the Trunk of a Swimmer Using a Swimmer Mannequin Robot

open access: yesJournal 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
doaj   +3 more sources

Effect of magnetic field on unsteady natural convective flow of a micropolar fluid between two vertical walls

open access: yesAin Shams Engineering Journal, 2017
We study theoretically the boundary layer flow of an incompressible micropolar fluid under uniform magnetic field and motion takes place due to the buoyancy force between vertical walls.
Hari R. Kataria   +2 more
doaj   +3 more sources

Detailed mechanism of self-excited vibration of a plate supported by air pressure

open access: yesNihon Kikai Gakkai ronbunshu, 2021
This study presents a dynamic stability analysis of the self-excited vibration of a plate supported by air pressure. In the analysis, the unsteady fluid force acting on the plate surface is calculated based on the theory of two-dimensional leakage flow ...
Masakazu TAKEDA, Masahiro WATANABE
doaj   +1 more source

A study on unsteady fluid-dynamic force characteristics of a pitching wing with leading edge protuberance

open access: yesNihon 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
doaj   +1 more source

Unsteady Approximate Model of Grouting in Fractured Channels Based on Bingham Fluid

open access: yesGeofluids, 2021
It is of great significance for the improvement of grouting technology and engineering practice to master the flow law of grout between parallel plates.
Bo Ren   +5 more
doaj   +1 more source

Application of modified Navier-Stokes equations to determine the unsteady force effects of a heterogeneous liquid [PDF]

open access: yesEPJ Web of Conferences, 2019
The article is focused on calculating the force effects of a heterogeneous liquid on pipe walls. The solution is based on the concentration of solid particles. The base fluid is assumed to be incompressible.
Pochylý František   +2 more
doaj   +1 more source

An Experimental and Numerical Evaluation of the Aerodynamic Performance of a UAV Propeller Considering Pitch Motion

open access: yesDrones, 2023
Considering the vibration generated by a propeller-driven UAV or encountering gust, the propeller will perform a very complex follower motion. A pitch and rotating coupled motion is proposed in the present work that can take more complex unsteady ...
Zhitao Zhang   +3 more
doaj   +1 more source

Three dimensional flutter analysis of a rectangular sheet based on the unsteady lifting surface theory and wind-tunnel experiments

open access: yesNihon Kikai Gakkai ronbunshu, 2016
This paper presents a three-dimensional flutter analysis of a rectangular sheet in an axial fluid flow. The unsteady fluid force acting on the sheet surface is calculated using Doublet-point method based on the unsteady lifting surface theory.
Masahiro WATANABE   +4 more
doaj   +1 more source

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