Results 11 to 20 of about 2,022,141 (310)

Internal flow characteristics of axial flow absorbers

open access: yes工程科学学报, 2016
The internal flow characteristics of axial flow absorbers were numerically studied by the computational fluid dynamics(CFD) method. The influences of three absorber models on the internal flow uniformity were compared: absorber without a flow distributor,absorber with a single flow distributor,and absorber with the combination of a flow distributor and
WANG Hao-yu   +3 more
openaire   +3 more sources

Influence of Guide Vane Slope on Axial-Flow Hydraulic Performance and Internal Flow Characteristics

open access: yesEnergies, 2022
To comprehensively study the influence of the guide vane inlet slope on the axial-flow pump, eight groups of axial-flow pumps with different guide vane inlet slopes are designed and studied in this paper. Four groups of schemes increase the relative slope at the rim of the guide vane blade, and the other four groups increase the relative slope at the ...
Yue Li   +3 more
openaire   +3 more sources

Effect of Blade Twist on The Flow Characteristics of Gas-Liquid Two-Phase Flow in a Spiral Axial Flow Pump [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
The mixing of oil and gas forms the foundation of deep-sea oil and gas extraction and transportation. However, traditional conveying equipment has low efficiency and high failure rates.
W. Han   +5 more
doaj   +1 more source

Experimental Study on PIV Measurement and CFD Investigation of the Internal Flow Characteristics in a Reactor Coolant Pump

open access: yesEnergies, 2023
The nuclear reactor coolant pump (RCP) is the core piece of equipment of a nuclear power plant (NPP). The energy performance and internal flow characteristics of RCPs are revealed by effective measurement methods, which are helpful to understand the flow
Dan Ni   +4 more
doaj   +1 more source

Analysis of the Complex Three-Dimensional Flow Structure in the Circulation Pump of the Flow-Making System Based on Delayed Detached Eddy Simulation

open access: yesEnergies, 2023
As the core component of the flow-making system, the circulating pump has differences in its internal flow structure under different operating conditions, which affects the flow quality of the environmental simulation test area and the authenticity of ...
Zhong Li   +5 more
doaj   +1 more source

Analysis and Research on Flow Characteristics of Hot Water Pipeline System [PDF]

open access: yesE3S Web of Conferences, 2021
Based on the CFD numerical simulation method, a pipe model was established to study the internal flow characteristics of two different specifications of hot water pipe system, and the related information of the flow field was obtained, such as the ...
Yingzhe Hou   +8 more
doaj   +1 more source

Analysis of internal flow characteristics and entropy generation of low head bulb tubular pump

open access: yesFrontiers in Energy Research, 2023
To study the internal flow characteristics and energy characteristics of a large bulb perfusion pump. Based on the CFX software of the ANSYS platform, the steady calculation of the three-dimensional model of the pump device is carried out.
Xinyi Tian   +4 more
doaj   +1 more source

Analysis of Timing Effect on Flow Field and Pulsation in Vertical Axial Flow Pump

open access: yesJournal of Marine Science and Engineering, 2021
Vertical axial flow pump device has the characteristics of large flow and low head, which is widely used in pumping station projects with head of 3–9 m. In order to study the influence of the timing effect of the impeller relative flow channel and guide ...
Fan Yang   +6 more
doaj   +1 more source

Effect of Fins on the Internal Flow Characteristics in the Draft Tube of a Francis Turbine Model

open access: yesEnergies, 2020
Undesirable flow phenomena in Francis turbines are caused by pressure fluctuations induced under conditions of low flow rate; the resulting vortex ropes with precession in the draft tube (DT) can degrade performance and increase the instability of ...
Seung-Jun Kim   +6 more
doaj   +1 more source

Improvement of Internal Flow Performance of a Centrifugal Pump-As-Turbine (PAT) by Impeller Geometric Optimization

open access: yesMathematics, 2020
Rotor-stator interaction (RSI) in the centrifugal pump-as-turbine (PAT) is a significant source of high amplitude of the pressure pulsation and the flow-induced vibration, which is detrimental to the stable operation of PAT. It is therefore imperative to
Jian Xu   +4 more
doaj   +1 more source

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