Results 41 to 50 of about 71,863 (315)

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

The hydrodynamic force on a rigid particle undergoing arbitrary time-dependent motion at small Reynolds number [PDF]

open access: yes, 1993
The hydrodynamic force acting on a rigid spherical particle translating with arbitrary time-dependent motion in a time-dependent flowing fluid is calculated to O(Re) for small but finite values of the Reynolds number, Re, based on the particle's slip ...
Brady, John F., Lovalenti, Phillip M.
core   +1 more source

Theoretical Study of Fluid Forces on a Centrifugal Impeller Rotating and Whirling in a Volute [PDF]

open access: yes, 1988
Fluid forces on a rotating and whirling centrifugal impeller in a volute are analyzed with the assumption of a two-dimensional rotational, inviscid flow. For simplicity, the flow is assumed to be perfectly guided by the impeller vanes.
Acosta, A. J.   +2 more
core   +1 more source

Unsteady Fluid Forces Acting on a Disk Simulating a Hand of Swimmer

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 2006
In the early 1970s, the issue of whether propulsion in swimming is due primarily to lift or drag appeared. Prior to that time it was believed that the best way to propel the body forward was to pull the hand directly backwards to use drag forces. Furthermore, the actual motion of a hand in swimming is obviously unsteady and the time-dependent fluid ...
Yusuke ODAKA   +2 more
openaire   +2 more sources

Study on criterion of acoustic resonant vibration with unsteady fluid dynamic force

open access: diamondThe proceedings of the JSME annual meeting, 2000
Hiroki Tanaka, Fumio SHIMIZU
openalex   +2 more sources

Study of Unsteady Fluid Forces on a Rotationally Oscillating Circular Cylinder

open access: yesJournal of the Visualization Society of Japan, 2005
The characteristics of fluid forces on a rotationally oscillating circular cylinder in a uniform flow are studied experimentally at various forcing frequencies and rotational amplitudes of cylinder oscillation. The measurements are made on the pressure fields around the circular cylinder by using the velocity data measured by PIV in conjunction with ...
Tomonori NAKANO, Nobuyuki FUJISAWA
openaire   +2 more sources

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

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

open access: yesInternational 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   +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)

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

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