Results 31 to 40 of about 208,857 (298)

Experimental and Numerical Investigation of Tip Leakage Vortex Cavitation in Water-jet Pump [PDF]

Journal of Applied Fluid Mechanics
During the operation of a water-jet pump, cavitation generates noise and vibration, causes surface erosion of the hydraulic components, and reduces the performance of the pump.
Y. Long, Z. Zhou, N. Li, M. Zhang, C. An, Y. Chen, R. Zhu   +6 more
doaj   +1 more source

Direct Sailing Variable Acceleration Dynamics Characteristics of Water-Jet Propulsion with a Screw Mixed-Flow Pump

Applied Sciences, 2019
Strong nonlinearity and the relevance of time-varying dynamic parameters in the maneuverable process of water-jet propulsion were major problems encountered in the prediction of variable acceleration dynamics characteristics.
Wei Han, Ting Shang, Min Su, Chengyong Gong, Rennian Li, Bin Meng   +5 more
doaj   +1 more source

PEMBANGUNAN POMPA PENDORONG AIR EMBUNG GRIGAK TENAGA SURYA UNTUK PENGAIRAN PERKEBUNAN ECO CAMP MANGUN KARSA

Abdimas Altruis, 2022
In the Mangun Karsa eco camp area, Gunungkidul, Yogyakarta, a reservoir has been built to be used to collect rainwater and named the Grigak Reservoir. The water from the reservoir will be used to irrigate plantation crops grown in the area.
Iswanjono Iswanjono, Tjendro Tjendro, Martanto Martanto, YB Lukiyanto, RB Dwiseno Wihadi, Sudi Mungkasi   +5 more
doaj   +1 more source

Optimization of Jet Pump Deliquification Technology for High Water Cut Tight Gas Reservoir in Qingshimao Field

Shiyou jixie
To address the underperformance of jet pump deliquification in high water cut tight gas reservoirs of Qingshimao field， optimizing the jet pump deliquification technology of high water-cut tight gas reservoirs is imperative.
Li Wanzhong, Zhang Zhenyu, Xu Jianning, Zhao Zhengyan, Han Yun   +4 more
doaj   +1 more source

Hydrodynamic and Flow Field Characteristics of Water Jet Propulsion under Mooring Conditions

Journal of Marine Science and Engineering, 2022
The acceleration characteristics of a water jet-propelled ship during startup are related to its performance under mooring conditions. Water jet propulsion cavitation during startup increases the vibration and noise of the whole ship.
Dagang Zhao, Yang Zhang, Qian He, Cong Sun, Mingqi Bi   +4 more
doaj   +1 more source

Water-jet Propulsion Characteristics of Vehicle Planing

水下无人系统学报, 2023
This study employed the shear stress transport(SST) k-ω turbulence model, multiple reference frame(MRF) model, and ideal pump model to construct a numerical simulation model of water-jet propulsion for vehicle planing.
Fuqiang LIU, Linyi ZHOU, Yuan SUN, Kao YAN   +3 more
doaj   +1 more source

Utilization of Open-Source OpenFOAM Code to Examine the Hydrodynamic Characteristics of a Linear Jet Propulsion System with or without Stator in Bollard Pull Condition

International Journal of Rotating Machinery, 2020
With the development of high-speed crafts, new propulsion systems are introduced into the marine industry. One of the new propulsion systems is linear jet which is similar to pump jet and has a rotor, a stator, and a duct.
Parviz Ghadimi, Negin Donyavizadeh, Pouria Taghikhani   +2 more
doaj   +1 more source

Numerically Simulating the Influence of Outlet Position and Diameter of Suction Pipe on Annular Jet Pump

Guan'gai paishui xuebao, 2022
【Objective】 Jet pump has a wide applications in many areas and water flow in it is affected by many design parameters. In this paper, we analyzed numerically the influence of the outlet position and diameter of the suction pipe on efficiency and flow ...
LI Tongzhuo, YANG Zhipeng
doaj   +1 more source

Associations of Sleep and Shift Work with Osteoarthritis Risk

Arthritis Care &Research, Accepted Article.
Objective Daily rhythms may be critical for maintaining homeostasis of joint tissues. We aimed to investigate the relationships between circadian clock disruption, sleep, and osteoarthritis (OA) risk in humans. Methods In the UK Biobank, a prospective 500,000‐person cohort, we evaluated associations between sleep duration, sleeplessness/insomnia, and ...
Elizabeth L. Yanik, Abigail Bridgeman, Erik D. Herzog, Vy Pham, Bradley A. Evanoff, Farshid Guilak   +5 more
wiley   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source