Results 21 to 30 of about 7,208 (162)
Sediment shell-content diminishes current-driven sand ripple development and migration [PDF]
Earth Surface Dynamics, 2021 Shells and shell fragments are biogenic structures that are widespread throughout natural sandy shelf seas and whose presence can affect the bed roughness and erodibility of the seabed.
C. H. Cheng +7 more
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Improving Performance of a Resonant String-Based Pulsation Attenuator in Hydraulic Systems
Applied Sciences, 2020 Hydraulic pulsation attenuators (HPA) are commonly used to suppress the noise and vibration in fluid power systems. However, most existing HPAs lack a reasonable optimization strategy and effective methods to improve the performance of HPAs.
Xia Shang, Hua Zhou, Huayong Yang
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Journal of Applied Fluid Mechanics, 2021 An axial piston pump can produce a serious cavitation phenomenon in the high- and low-pressure transition process. Cavitation bubbles expand, compress, rebound and collapse when they enter the high-pressure oil drainage area.
Y. Pan, A. H. Chen, Z. N. Wang
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On Ripple of Annular Two-Phase Flow : 1. Statistical Characteristics of Ripples
Bulletin of JSME, 1977 A statistical method is proposed to express the gas-liquid interface on a lot of waves existing in the ripple regimen of upward two-phase annular flow. Experiments were made to establish the present method on local liquid holdup and probability density of wave to its height.
SEKOGUCHI, Kotohiko +4 more
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Energy Reports, 2022 Compared with the traditional power transformer, the cascaded PET has various functions, which integrates the functions of voltage conversion, high-frequency electrical isolation, flexible power flow control and AC/ DC power interface.
Zhendong Ji +3 more
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Theoretical Investigation into the Ripple Source of External Gear Pumps
Energies, 2019 External gear pumps are among the most popular fluid power positive displacement pumps, however they often suffer of excessive flow pulsation transmitted to the downstream circuit.
Xinran Zhao, Andrea Vacca
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IEEE Access, 2021 The objective of this paper is to propose bidirectional charging/discharging strategies for three-phase grid-tied converters. The bidirectional power flow control feature of the converter is able to realize both charging and discharging capability ...
Cheng-Yu Tang +2 more
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THE FLOW OVER ASYMMETRICAL RIPPLES: EXPERIMENTAL INVESTIGATION ON THE MORPHODYNAMIC BEHAVIOR [PDF]
Coastal Engineering Proceedings, 2017 This paper reports on an experimental campaign focused on the generation and evolution of small scale bedforms over a sloping sandy beach. The wave propagation over a sloping bed triggers a flow asymmetry that reflects on the bedform characteristics.
Faraci, Carla +4 more
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Effect of damping groove on flow dynamics and vibration characteristics of axial piston pump
AIP Advances, 2019 This paper presents pressure, flow and vibration characteristics of an axial piston pump valve plate with damping grooves. For flow ripple and vibration of the pump reduction, an improved compressible fluid model of axial-piston pump with damping groove ...
Tang Hesheng +3 more
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Modeling and optimization of the delivery fluctuation of gear pumps [PDF]
MATEC Web of Conferences, 2019 Presented work aims to minimize the delivery fluctuation of a gear pump through geometrical optimisation of the tooth flank. Therefore, instead of examining various configurations, which would reduce the flow ripple ad hoc, the current study suggests the
Tsolakis Efstratios +5 more
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