Results 11 to 20 of about 4,615 (244)

Forced convection of unsteady magnetohydrodynamics fluid past a porous sphere [PDF]

open access: yesAIP Conference Proceedings, 2017
This paper studies the boundary layer flow of unsteady incompressible and viscous fluid passing over a porous sphere with forced convection. The non-magnetic viscous fluid was induced by magnetic field of the magnetic porous sphere and it becomes Magnetohydrodynamics (MHD) viscous fluid. The dimensional governing equations are developed from continuity
Nadya Alvi Rahma   +2 more
openaire   +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

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

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

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

Unsteady Fluid Forces on a Blade in a Cross-Flow Turbine.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1993
The internal flow in a cross-flow turbine is nonuniform because the water passes through only part of the runner. Therefore, the unsteady fluid forces act on a blade through rotation. The experimental and theoretical studies for determination of fluid forces on the blade in a cross-flow turbine are conducted.
Fukutomi, Junichiro   +3 more
openaire   +3 more sources

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