Results 1 to 10 of about 208,857 (298)

Investigation on performance in water jet pump under turning conditions [PDF]

open access: yesAdvances in Mechanical Engineering, 2022
Turning has a significant effect on the performance of water-jet pump. Here, the axial flow water-jet pump was used as the research object, the performance and inner flow characteristics of water-jet pump under different turning angle were simulated ...
Hou-Lin Liu   +4 more
doaj   +3 more sources

Performance of water-jet pump under acceleration

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2021
The instantaneous acceleration affects the performance of the water-jet pump obviously. Here, based on the user-defined function, the method to simulate the inner flow in water-jet pumps under acceleration conditions was established.
Xian-Fang Wu   +4 more
doaj   +3 more sources

Assessment of Cavitation Erosion in a Water-Jet Pump Based on the Erosive Power Method. [PDF]

open access: yesScanning, 2021
Cavitation affects the performance of water-jet pumps. Cavitation erosion will appear on the surface of the blade under long-duration cavitation conditions. The cavitation evolution under specific working conditions was simulated and analyzed.
Qiu N   +5 more
europepmc   +2 more sources

Research on Cavitation Wake Vortex Structures Near the Impeller Tip of a Water-Jet Pump

open access: yesEnergies, 2023
Cavitation can cause noise in the water-jet pump. If cavitation occurs in the water-jet pump, the hydraulic components in the pump are prone to erosion. The surface erosion reduces energy delivery efficiency and increases maintenance costs.
Yun Long   +7 more
doaj   +2 more sources

Parametric Study of Water Jet Pump Performance [PDF]

open access: yesInternational Journal of Applied Energy Systems, 2021
this paper presents experimental and Computational Fluid Dynamic (CFD) analyses of a water jet pump. The effect of modifying the area ratio has been studied experimentally and numerically.
Amr Hassan, M. Shaban Eissa, W. Aissa
openaire   +2 more sources

Evaluation of a Jet-Pump for the Improvement of Oil-Water Flow in Pipeline Loops Using CFD Tools [PDF]

open access: yesE3S Web of Conferences, 2021
Despite their low efficiency compared with centrifugal pumps, jet pumps are highly reliable, robust equipment with modest maintenance, ideal for many applications, mainly in the oil & gas industry.
Asuaje Miguel   +2 more
doaj   +2 more sources

Experimental and Theoretical Investigation of Water Jet Pump Performance [PDF]

open access: yesInternational Journal of Applied Energy Systems, 2021
in this paper, we've experimentally and theoretically (analytical and numerical) investigated the water jet pump. The effect of operational and geometrical parameters on the water jet pump efficiency was determined experimentally and theoretically. The experimental investigation was held `firstly to work out the effect of driving nozzle spacing, area ...
W. Aissa   +2 more
openaire   +2 more sources

Influence of External Jet on Hydraulic Performance and Flow Field Characteristics of Water Jet Propulsion Pump Device

open access: yesShock and Vibration, 2021
Water jet propulsion technology has broad application prospects in the field of ships, and water jet technology is a kind of high and new technology that is booming and has a wide range of applications.
Jinxin Wu, Li Cheng, Can Luo, Chuan Wang
doaj   +2 more sources

Research on the Internal Flow Difference between Peak and Valley Conditions of Water Jet Propulsion Pump during Working at Hump Region

open access: yesJournal of Marine Science and Engineering
When we tested the water jet propulsion pump, we found that there were significant vibrations in the pump, especially at small flow points that deviated from the design conditions. The water jet propulsion pump is a mixed-flow pump with guide vane, which
Hanqiao Han, Yun Long, Jinqing Zhong
doaj   +2 more sources

Computational and Experimental Study on the Water-Jet Pump Performance

open access: yesJournal of Applied Fluid Mechanics, 2018
The effect of operational and geometrical parameters on the jet pump efficiency were determined experimentally and numerically. Numerical investigation was held firstly to determine the effect of diffuser angle, mixing chamber length, pump area ratio and driving nozzle position on the efficiency of jet pump. Commercial computational fluid dynamics (CFD)
A. A. A. Sheha   +3 more
openaire   +3 more sources

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