Results 11 to 20 of about 372,561 (293)

Influence of Tip Clearance on Pressure Fluctuation in Low Specific Speed Mixed-Flow Pump Passage

open access: yesEnergies, 2017
To explore the influence of tip clearance on pressure fluctuation in a low specific speed mixed-flow pump, tip clearances δ of 0.25 mm, 0.75 mm and 1.00 mm, along with no tip clearance, were selected.
Wenwu Zhang, Zhiyi Yu, Baoshan Zhu
doaj   +3 more sources

Pressure Fluctuation Characteristics Analysis of Centrifugal Pump as Turbine in Its Start-Up Process

open access: yesActuators, 2022
In order to study pressure fluctuation characteristics of a centrifugal pump as turbine (PAT) in its start-up process, Fluent was used to do numerical simulation of the PAT start-up process.
Baodui Chai   +3 more
doaj   +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

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

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-Induced Valence Crossover and Novel Metamagnetic Behavior near the Antiferromagnetic Quantum Phase Transition of YbNi$_{3}$Ga$_{9}$ [PDF]

open access: yes, 2015
We report electrical resistivity, ac magnetic susceptibility and X-ray absorption spectroscopy measurements of intermediate valence YbNi$_{3}$Ga$_{9}$ under pressure and magnetic field.
1000060262953   +20 more
core   +2 more sources

Anomalous pressure in fluctuating shear flow [PDF]

open access: yesPhysical Review E, 2003
Breakdown of the intensivity of pressure is emphasized. Fig.1 and references added; accepted for publication as a Rapid Communication in Phys.
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

Base Pressure Fluctuations [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1960
The intense vibration accompanying the extension of dive brakes and other high drag devices on aircraft and missiles has been observed for many years. Recently, considerable vibration has been experienced at the fundamental longitudinal mode and at other internal resonance frequencies of a vehicle which had a blunt base during the maximum dynamic ...
openaire   +1 more source

Home - About - Disclaimer - Privacy