Results 31 to 40 of about 2,935,132 (222)

Three dimensional flutter analysis and wind-tunnel experiments of slender webs in cross flow

Nihon Kikai Gakkai ronbunshu, 2017
This paper presents a three dimensional flutter analysis of slender webs under tension in cross flow. In the flutter analysis, Doublet-point method based on the unsteady lifting surface theory is used to calculate unsteady fluid force acting on the web ...
Keiichi HIROAKI, Nobuhito KAWAI, Masahiro WATANABE   +2 more
doaj   +1 more source

Unsteady flow induced by a withdrawal point beneath a free surface [PDF]

, 2005
The unsteady axisymmetric withdrawal from a fluid with a free surface through a point sink is considered. Results both with and without surface tension are included and placed in context with previous work.
Forbes, L.K., Forbes, Lawrence K., Hocking, G.C., Stokes, Tim E., Hocking, G. C., Hocking, Graeme Charles, Stokes, T.E., Stokes, T. E.   +7 more
core   +1 more source

Rotordynamic Fluid Force Moments on an Open-type Centrifugal Compressor Impeller in Precessing Motion

International Journal of Rotating Machinery, 2001
In recent years, increasing interest has been given to the rotordynamic fluid forces on impellers, from the view point of the shaft vibration analysis. Previous experimental and analytical results have shown that the fluid-induced forces and moments on ...
Yoshiki Yoshida, Yoshinobu Tsujimoto, Daizo Yokoyama, Hideo Ohashi, Fumitaka Kano   +4 more
doaj   +1 more source

Dynamic stability of a floating plate and a support structure (Influence of elasticity of a support structure on occurrence conditions of the self-excited vibration)

Nihon Kikai Gakkai ronbunshu, 2019
This paper presents experiments and an analysis of the self-excited vibration of a floating plate and a support structure. The system in which a floating plate and a support structure vibrate, the elasticity of the support structure influences the ...
Masakazu TAKEDA, Kazunori OZAWA, Masahiro WATANABE   +2 more
doaj   +1 more source

Unsteady draining of a fluid from a circular tank [PDF]

, 2010
Three-dimensional draining flow of a two-fluid system from a circular tank is considered. The two fluids are inviscid and incompressible, and are separated by a sharp interface.
Forbes, L.K., Graeme C. Hocking, Hocking, G.C., Lawrence K. Forbes   +3 more
core   +1 more source

Three dimensional flutter analysis and wind-tunnel experiments of a rectangular sheet supported by a wire (Influence of eccentricity on the flutter characteristics and occurrence condition)

Nihon Kikai Gakkai ronbunshu, 2016
This paper deals with the flutter analysis of a rectangular sheet supported by a wire in axial flow. In the flutter analysis, Doublet-Point Method based on unsteady lifting surface theory is used to calculate the unsteady fluid force acting on the sheet ...
Keiichi HIROAKI, Masahiro WATANABE
doaj   +1 more source

Turbulent flow interacting with flexible trawl net structure including simulation catch in flume tank

Scientific Reports, 2023
The interaction between fluid and the midwater trawl with stocked catches is extremely complex, but essential to improve the understanding of the drag force acting on the trawl, the behavior of the fishing structure during a trawling process, and to ...
Bruno Thierry Nyatchouba Nsangue, Hao Tang, Wei Liu, Liuxiong Xu, Fuxiang Hu   +4 more
doaj   +1 more source

Simulation on Unsteady Crosswind Forces of a Moving Train in a Three-Dimensional Stochastic Wind Field

Applied Sciences, 2022
Unsteady aerodynamic forces are significantly critical to the safety and stability of trains traveling in high winds. This paper describes a study into unsteady crosswind forces of a moving train subjected to a three-dimensional stochastic wind field ...
Zhiyong Yao, Nan Zhang, Xiaoda Li, Zongchao Liu   +3 more
doaj   +1 more source

Modeling of unsteady aerodynamic loads

, 2011
Time-accurate solutions of the Euler or Navier-Stokes equations are still nowadays a computationally expensive approach for applications where a magnitude of parameters has to be investigated. This work focuses on flight dynamics-related studies.
Cummings, R. M., McCracken, A., Da Ronch, A., Badcock, K. J., Ghoreyshi, M.   +4 more
core   +1 more source

Cavity induced vibration of flexible hydrofoils [PDF]

, 2014
The objective of this work is to investigate the influence of cavity-induced vibrations on the dynamic response and stability of a NACA66 hydrofoil at 8° angle of attack at Re=750 000 via combined experimental measurements and numerical simulations.
CHAE, Eun Jung, AKCABAY, Deniz Tolga, YOUNG, Yin Lu, DUCOIN, Antoine, ASTOLFI, Jacques Andre   +4 more
core   +1 more source