Results 11 to 20 of about 71,336 (264)

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

The force on a bubble, drop, or particle in arbitrary time-dependent motion at small Reynolds number [PDF]

open access: yes, 1993
The hydrodynamic force on a body that undergoes translational acceleration in an unbounded fluid at low Reynolds number is considered. The results extend the prior analysis of Lovalenti and Brady [to appear in J. Fluid Mech.
Brady, John F., Lovalenti, Phillip M.
core   +1 more source

Characteristics of a self-excited vibration of a plate supported by air pressure (Influence of chamber volume and slit width on occurrence conditions of the self-excited vibration)

open access: yesNihon Kikai Gakkai ronbunshu, 2018
This paper presents experiments and an analysis of the self-excited vibration of a plate supported by air pressure. In the analysis, the unsteady fluid force acting on the plate is calculated based on the basic equation of a two-dimensional gap flow ...
Masakazu TAKEDA, Masahiro WATANABE
doaj   +1 more source

Circular cylindrical shell flutter analysis based on the unsteady lifting surface theory and experimental verification

open access: yesNihon Kikai Gakkai ronbunshu, 2015
This paper deals with flutter analysis of a circular cylindrical shell based on the non-planar unsteady lifting surface theory. In this study, experiments are conducted with a cantilevered circular cylindrical shell subjected to inner fluid flow, and ...
Hiroya ITOH   +2 more
doaj   +1 more source

Unsteady nanofluid flow over a cone featuring mixed convection and variable viscosity

open access: yesHeliyon, 2023
This article addresses unsteady nanofluid flow over a cone with MHD and mixed convection effects. Effects of variable viscosity and viscous dissipation are also considered. The resulting system of equations is tackled through the Homotopy Analysis Method
Zubair Mustafa   +3 more
doaj   +1 more source

Flutter of a rectangular cylindrical shell subjected to inner fluid flow

open access: yesNihon Kikai Gakkai ronbunshu, 2015
This paper deals with flutter experiments and analysis of a rectangular cylindrical shell based on the non-planar unsteady lifting surface theory. In this study, experiments are conducted with a cantilevered rectangular cylindrical shell subjected to ...
Hiroya ITOH   +2 more
doaj   +1 more source

Flutter analysis and wind-tunnel experiments of a flat plate suspended by wires

open access: yesNihon Kikai Gakkai ronbunshu, 2023
In the construction work, flat plates for building materials are transported by a suspension mechanism using wires in air flow. Then, a flutter could be caused to the suspended plates due to the interaction between plate motion and fluid flow.
Keiichi HIROAKI   +3 more
doaj   +1 more source

Small-Time Behavior of Unsteady Cavity Flows [PDF]

open access: yes, 1963
A perturbation theory is applied to investigate the small-time behavior of unsteady cavity flows in which the time-dependent part of the flow may be taken as a small-time expansion superimposed on an established steady cavity flow of an ideal fluid.
Wang, D. P., Wu, T. Yao-tsu
core   +1 more source

Stereo PIV measurements of vortex behavior produced by a pitch-oscillating discoid airfoil

open access: yesJournal of Fluid Science and Technology, 2014
Flying animals and insects flap their wings using a combination of pitching and heaving oscillations. Unsteady fluid forces presumably play an important role in the flight mechanism, and also in the propulsive force of swimmers performing the front crawl.
Toshihiro HANIU, Hiroaki HASEGAWA
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

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