Results 21 to 30 of about 372,561 (293)
Vacuum radiation pressure fluctuations on atoms [PDF]
Physical Review A, 2021 Recent work has shown that the stress tensor components, such as energy density or pressure, of a quantum field can be subject to large vacuum fluctuations. The energy density or pressure must be averaged in time before the fluctuations can be finite, and the probability of a large fluctuation depends upon the details of the averaging and can be much ...
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Study on the Characteristics and Formation Mechanism of Pressure Fluctuation in an Axial Flow Pump Based on Dynamic Mode Decomposition [PDF]
Journal of Applied Fluid MechanicsIn 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
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A study on noise and pressure fluctuation in diffuser of compact centrifugal blower
Nihon Kikai Gakkai ronbunshu, 2016 Recently, it has become more important to develop vacuum cleaners which achieve both high suction power and low noise along with comfortable sound quality.
Takeshi HONDA +2 more
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Applied Sciences, 2020 This paper takes a pump-turbine as the research subject and, based on the Computational Fluid Dynamics (CFD) numerical method and combined with test data, investigates the pressure fluctuation characteristics in the pump mode and analyzes the pressure ...
Ping Huang +4 more
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Ab initio calculations of superconductivity in palladium under pressure [PDF]
, 2005 We have calculated the phonon dispersion and the electron-phonon interaction in palladium at ambient and under pressure using ab initio methods and evaluated superconducting transition temperature on the basis of the BCS theory.
Nagara Hitose +5 more
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Analysis of Unsteady Pressure Fluctuation in a Semi-Open Cutting Pump
Energies, 2020 In order to understand the pressure fluctuation characteristics of a semi-open cutting pump, the three-dimensional unsteady flow fields were calculated. External and internal flow characteristics of four schemes with different relative angles between the
Weidong Cao, Jiayu Mao, Wei Li
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Numerical Simulation of Unsteady Flow in A Centrifugal Pump [PDF]
E3S Web of Conferences, 2019 In this paper, the computational fluid dynamic (CFD) method was used to simulate the three-dimension, unsteady turbulent flow in a primary pump. Moving mesh method was used to simulate the rotation of the impeller.
Ma Xudan +4 more
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Numerical Study on Cavitating Flow-Induced Pressure Fluctuations in a Gerotor Pump
Energies, 2023 Using the RNG k-ε turbulence model and a full cavitation model, this study numerically simulated cavitating flow-induced pressure fluctuations in a gerotor pump and analyzed the relationship between cavitating flow and pressure fluctuations.
Peijian Zhou +5 more
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Analysis of the Sound Field Structure in the Cabin of the RRJ-95NEW-100 Prototype Aircraft
Aerospace, 2023 The results of in-flight experiments to determine the structure of the sound field in the cabin and pressure fluctuation fields on the surface of the fuselage of the RRJ-95NEW-100 prototype aircraft are presented here. Wall pressure fluctuation spectrums
Vladimir Lavrov +2 more
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Spin Fluctuations and the Magnetic Phase Diagram of ZrZn2
, 2003 The magnetic properties of the weak itinerant ferromagnet ZrZn_2 are analyzed using Landau theory based on a comparison of density functional calculations and experimental data as a function of field and pressure. We find that the magnetic properties are
A. Aguayo +24 more
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