Results 21 to 30 of about 71,336 (264)

Dynamic stability and exciting mechanism of a plate supported by air pressure

open access: yesNihon Kikai Gakkai ronbunshu, 2016
This paper presents experiments and an analysis on the self-excited vibration of a plate supported by air pressure. The instability conditions are examined using a theoretical analysis considering the effect air compressibility in a chamber.
Masakazu TAKEDA, Masahiro WATANABE
doaj   +1 more source

An Experimental Study of Unsteady Flows Generated in Kojima Lake [PDF]

open access: yes, 2003
The global positioning system (GPS) is utilized for analysis of flows in the water environment. A float equipped with a GPS unit is designed to drift on the surface of the water.
Numaguchi, Satoshi, Watanabe, Masaji
core   +1 more source

Forced vibration of a sheet under periodic aerodynamic excitation

open access: yesNihon Kikai Gakkai ronbunshu, 2020
This paper describes vibration characteristics of a cantilevered flexible sheet under the periodic aerodynamic excitation. In the experiment, movable plates(exciter) are set at the upstream side from the sheet in a wind-tunnel.
Keiichi HIROAKI   +2 more
doaj   +1 more source

An Unsteady Model for Aircraft Icing Based on Tightly-Coupled Method and Phase-Field Method

open access: yesAerospace, 2021
An unsteady tightly-coupled icing model is established in this paper to solve the numerical simulation problem of unsteady aircraft icing. The multi-media fluid of air and droplets is regarded as a single medium fluid with variable material properties ...
Hao Dai   +4 more
doaj   +1 more source

Unsteady forces on an accelerating plate and application to hovering insect flight [PDF]

open access: yes, 2004
The aerodynamic forces on a flat plate accelerating from rest at fixed incidence in two-dimensional power-law flow are studied analytically and numerically.
Pullin, D. I., Wang, Z. Jane
core   +1 more source

Measurements of the Flow in Backshroud/Casing Clearance of Precessing Centrifugal Impeller

open access: yesInternational Journal of Rotating Machinery, 1997
Detailed flow measurements have been made to clarify the unsteady flow in the backshroud/ casing clearance of a precessing centrifugal impeller. The unsteady pressure was integrated to obtain the fluid force moment on the precessing impeller shroud for ...
Yoshiki Yoshida   +4 more
doaj   +1 more source

Exact regularized point particle method for multi-phase flows in the two-way coupling regime [PDF]

open access: yes, 2014
Particulate flows have been largely studied under the simplifying assumptions of one-way coupling regime where the disperse phase do not react-back on the carrier fluid.
Casciola, C. M.   +3 more
core   +2 more sources

Numerical analysis of the unsteady fluid force acting on an axially oscillating balance piston (2nd report, Comparison of dynamic characteristics of fluid forces acting on front and back shrouds)

open access: yesNihon 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
doaj   +1 more source

An overview of a Lagrangian method for analysis of animal wake dynamics [PDF]

open access: yes, 2008
The fluid dynamic analysis of animal wakes is becoming increasingly popular in studies of animal swimming and flying, due in part to the development of quantitative flow visualization techniques such as digital particle imaging velocimetry (DPIV).
Dabiri, John O., Peng, Jifeng
core   +1 more source

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

open access: yesNihon 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   +2 more
doaj   +1 more source

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