Results 11 to 20 of about 87,970 (262)

Fluctuating shells under pressure [PDF]

open access: yesProceedings of the National Academy of Sciences, 2012
Thermal fluctuations strongly modify the large length-scale elastic behavior of cross-linked membranes, giving rise to scale-dependent elastic moduli. Whereas thermal effects in flat membranes are well understood, many natural and artificial microstructures are modeled as thin elastic shells.
Paulose, Jayson   +3 more
openaire   +3 more sources

Quantum fluctuations of radiation pressure [PDF]

open access: yesPhysical Review D, 2001
23 pages, 3 figures ...
Wu, Chun-Hsien, Ford, L. H.
openaire   +2 more sources

Pressure fluctuation measurement in pressure vessels

open access: yesIOP Conference Series: Earth and Environmental Science, 2022
Abstract Pressure vessels are mechanical devices that act as a reservoir of fluids at pressure more or less than atmospheric pressure. This research focuses on the application of the pressure vessel for hydraulic testing of hydro turbines to maintain uniform velocity profile and to suppress the pressure surge in the pipeline.
A Kapali   +4 more
openaire   +1 more source

Pressure Fluctuations on the Bed of Submerged Hydraulic Jump [PDF]

open access: yesآب و فاضلاب, 2019
The hydraulic jump has many usages in transport and treatment of water and wastewater. It may be considered macroscopically as a rapidly varied flow with strong vortices those generate macro turbulent fluctuations.
Kamran Yousefi   +3 more
doaj   +1 more source

Dynamic response of deepwater test string under fluctuations in axial force and internal pressure

open access: yesScientific Reports, 2023
In this study, a mechanical model suitable for deepwater test string was proposed. An analysis of the dynamic response of the test string under different frequencies, different water depths and different fluctuation amplitudes was carried out by using ...
Qiaolei Sun   +4 more
doaj   +1 more source

Anomalous pressure in fluctuating shear flow [PDF]

open access: yesPhysical Review E, 2003
We investigate how the pressure in fluctuating shear flow depends on the shear rate $S$ and on the system size $L$ by studying fluctuating hydrodynamics under shear conditions. We derive anomalous forms of the pressure for two limiting values of the dimensionless parameter $λ=SL^2/ν$, where $ν$ is the kinematic viscosity.
Wada, Hirofumi, Sasa, Shin-ichi
openaire   +3 more sources

Numerical study of pressure fluctuation in the whole flow passage of a low specific speed mixed-flow pump

open access: yesAdvances in Mechanical Engineering, 2017
The understanding of pressure fluctuation mechanism is the basis for stability and noise analysis in pumps. In this article, numerical study was carried out for the pressure fluctuation within the impeller and the guide vane of a low specific speed mixed-
Wenwu Zhang   +3 more
doaj   +1 more source

Study on the Characteristics and Formation Mechanism of Pressure Fluctuation in an Axial Flow Pump Based on Dynamic Mode Decomposition [PDF]

open access: yesJournal of Applied Fluid Mechanics
In this study, aiming at investigating the formation mechanism of pressure fluctuations of different frequencies in axial flow pumps, the characteristics of pressure fluctuation were determined using fast Fourier transform (FFT) on the basis of a ...
Z. Y. Zhuang, H. H. Zhou, Z. Y. Yu
doaj   +1 more source

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