Results 21 to 30 of about 83,277 (263)
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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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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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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Base Pressure Fluctuations [PDF]
The 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 ...
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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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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Type 1 plasminogen deficiency (PLGD‐1) is an ultra‐rare autosomal recessive disorder caused by variants in the PLG gene and affects approximately 1.6 individuals per million. The condition is characterized by decreased plasminogen levels and impaired function, resulting in fibrin‐rich lesions on mucous membranes throughout the body.
Charles Nakar +7 more
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Journal of Applied Fluid Mechanics, 2020 The transient pressure waves in the intake and exhaust systems directly affect the intake and exhaust processes of diesel engines, thus further affecting the combustion process and the performance of diesel engines.
S. H. Liu, Y. F. Hou, Y. H. Bi, S. Yin
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