Results 241 to 250 of about 208,857 (298)

Study on stall characteristics of the water jet propulsion pump device based on entropy generation theory and third-generation vortex identification method

The Physics of Fluids
The generation of stall conditions will directly affect the hydraulic and energy characteristics of the water jet propulsion pump. Utilizing the entropy generation theory, this study conducts a comparative analysis of the entropy generation loss ...
Weixuan Jiao, Xiaoyuan Xi, Li Cheng, Heng Zhao, Yuqi Wang, Jiantao Shen, C. Luo   +6 more
semanticscholar   +1 more source

Maximum suction lift of water jet pumps

Journal of Mechanical Science and Technology, 2011
This paper describes an experimental study on water jet pumps with different diameters and nozzle-to-throat area ratios. The results revealed that the area ratio was an important parameter to characterize the maximum suction lift of the jet pumps, while their diameters had a negligible effect.
openaire   +1 more source

Jet Pump Cavitation With Ambient and High Temperature Water

Journal of Fluids Engineering, 1979
Cavitation characteristics of a jet pump were explored in tests with 80°C and 280°C water. A cavitation coefficient based on suction velocity and net suction head was used to correlate results. Results at low temperature compared well to results in literature.
A. A. Kudirka, M. A. DeCoster
openaire   +1 more source

Study on suction effect of water jet propulsion pump based on entropy weight theory

The Physics of Fluids
Water jet propulsion pumps start at special stages such as mooring and sailing, the ship is in shallow water, and the underwater keen clearance (UKC) is relatively small, which is easy to induce underwater suction vortex near the inlet position and cause
Heng Zhao, Li Cheng, Weigao Sheng, Weixuan Jiao, C. Luo   +4 more
semanticscholar   +1 more source

Research on hydrodynamics of high velocity regions in a water-jet pump based on experimental and numerical calculations at different cavitation conditions

, 2021
Y. Long, Ce An, R. Zhu, Jianping Chen
semanticscholar   +1 more source

Development of Jet Pumps for Boiling Water Reactor Recirculation Systems

Journal of Engineering for Power, 1974
The efficiency of jet pumps used in Boiling Water Reactors has been significantly improved through extensive development efforts. These jet pumps are used inside the reactor pressure vessel as part of the reactor recirculation system to circulate subcooled water at about 530 deg F. The development of the first-generation and improved, second-generation
A. A. Kudirka, D. M. Gluntz
openaire   +1 more source

EVALUATION OF EROSION RESISTANCE OF ADDITIVE 3D PRINTED MATERIALS UNDER CONTINUOUS AND PULSATING WATER JET EXPOSURE

MM Science Journal
Additively manufactured/printed represent a high potential for their use in various branches of technical practice. However, their applicability requires knowledge of the maximum application limits, or the intensity of their damage due to external ...
J. Petrů, Radim Skorepa, Akash Nag, Gabriel Stolárik, S. Hloch   +4 more
semanticscholar   +1 more source

Water jet pumps with multiple nozzles

2002
93
openaire   +2 more sources

High Speed Pumps in Water Jet Cutting

1992
In this paper we shall consider the possibilities of producing the high pressures required in water jet cutting / water jetting by using very fast rotating kinetic pumps. Such kinetic pumps require very little maintenance, they are light and small and no pressure accumulator is needed. Preliminary test results are included.
openaire   +1 more source

Water jet pump and its application to dredging problems

2020
oz SU JETİ POMPASI VE DİP TARAMA PROBLEMLERİNE UYGULANMASI YEŞİLMEN, Bayındır Yüksek Lisans, İnşaat Mühendisliği Bölümü Tez Danışmanı: Prof. Dr. Mustafa Göğüs Yardımcı Tez Danışmanı: Dr. M. Ali Kökpınar Mayıs 2002, 128 Sayfa Bu çalışma `Su Jeti Pompası` hakkında yapılan önceki çalışmalara dayanmaktadır, fakat burada, önceki çalışmalardan farklı olarak ...
openaire   +2 more sources