Results 211 to 220 of about 71,336 (264)

Investigation on the Vibration Induced by the Rotary-Shaft-Seal Condition in a Centrifugal Pump. [PDF]

Sensors (Basel)
Zou J, Luo Y, Han Y, Fan Y, Wang C.
europepmc   +1 more source

Fuzzy logic based nonlinear blending hybrid control of a kestrel-inspired ornithopter operating in sinusoidal and dryden gusts. [PDF]

Sci Rep
Abbasi SH, Saudagar AKJ, Nouman A, Hennache ML.   +3 more
europepmc   +1 more source

Adjustable tongue vane for improving the energy performance of a submersible single-channel pump for wastewater treatment. [PDF]

Heliyon
Nguyen DA, Wu K, Li X, Kim GS, Kim JH.
europepmc   +1 more source

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Hydrodynamics of scallop locomotion: unsteady fluid forces on clapping shells

Journal of Fluid Mechanics, 1996
A potential flow model has been formulated for scallop swimming. Under the smalldisturbance approximation, the problem of the unsteady flow past the wing-like configuration of a scallop is separated into two linear sub-problems: the steady lifting problem and the unsteady symmetric thickness problem.
Cheng, J.-Y., DeMont, M. E.
openaire   +2 more sources

Unsteady Fluid Force Acting on Oscillating Square-Section Cylinder

Journal of Engineering Mechanics, 1995
The difference between experimentally measured lift forces under dynamic condition and quasi-steady condition is termed as an unsteady force, in this technical note. Analysis shows the magnitude of the unsteady force increases with the maximum angle of incidence, αmax encountered by the square cylinder during a cycle of transverse oscillation in a ...
Luo, S.C., Chew, Y.T., Goh, E.Y.
openaire   +1 more source

Approximate model for unsteady finite porous journal bearings fluid film force calculation

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2006
This article focuses on an analytical approximate fluid film pressure solution in finite porous journal bearings. Exploring the dynamic behaviour of a rotor on porous bearings, such as the fluid film force, the authors find in an analytical model an effective approach to provide a more readable description of the interaction between rotor and bearings.
D'AGOSTINO, Vincenzo, RUGGIERO, Alessandro, SENATORE, ADOLFO   +2 more
openaire   +3 more sources

LES CFD Simulation of Unsteady Fluid Forces in Tube Bundle

Volume 4: Fluid-Structure Interaction, 2011
Significant nuclear fuel assembly design innovations are regularly incorporated to meet the highest expectations in terms of safety, performance and flexibility. Despite the continuous upgrades of fuel designs and materials, the fuel failure rate has not markedly decreased during the last decade, partly because of higher burn-up, longer cycle lengths ...
Serge Delafontaine, Guillaume Ricciardi, Bruno Collard   +2 more
openaire   +1 more source

Problems in Forced Unsteady Fluid Mechanics.

1981
Abstract : Forced unsteady fluid flows are examined from the point of view of positive implications of the time dependency. Particular problems examined in a forced unsteady mode are jets, wind tunnels, wings, ramps and diffusers, dump combustors and vortex structure.
David Bougine, Richard J. Bethke, Mont Ball, Michael Piatt, Hermann Viets   +4 more
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Unsteady Fluid Forces Acting on a Pitching Foil

Journal of Fluid Machinery, 2005
An oscillating foil can produce a driving force through the generation of a reversed vortex street, and it can be expected to be a new highly effective propulsion system. A simple pitching foil model was made and it was operated within a water channel.
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Direct Measurement of Unsteady Fluid Dynamic Forces for a Hovering Dragonfly

AIAA Journal, 2005
An experimental study of the aerodynamics of a dragonfly in hovering flight is conducted. Measurements are made on a mechanical flapping wing apparatus that simulates, in water, the Reynolds number and reduced frequency of the tandem wing configuration on a dragonfly.
Manabu Yamamoto, Koji Isogai
openaire   +1 more source