Results 51 to 60 of about 108,324 (309)

Erosive-abrasive wear modeling of a water jet pump in a slurry medium

European Mechanical Science
In the study, water jet pump transfers the slurry in the well through pipe system to centrifugal pump. Sand-water mixture causes amount of material loss in the water jet pump structure computed by a software program.
Yaşar Mutlu, Ergin Kosa
doaj   +1 more source

Speckle‐Engineered Upconversion Amplification in Nanoemulsion‐Templated Hydrogel Microdomes

Advanced Functional Materials, EarlyView.
Nanoemulsion‐confined PEGDA microdomes generate speckle‐like excitation fields that strongly amplify upconversion luminescence upon dehydration, enabling filter‐free visible readout with reversible on–off switching. DMD‐based lithography yields scalable, shape‐programmable arrays for moisture‐responsive displays and optical encryption.
Chaeyeong Ryu, Byungcheon Yoo, Seunghun Lee, Hyungyo Jeong, Sanggyun Jeong, Heesu Cho, Jongwon Oh, Dahye Baek, Jongkyu Kim, Yubin Lee, Eunsu Gu, Dong‐Hwan Kim, Jung‐Hoon Park, Jiseok Lee   +13 more
wiley   +1 more source

Cross Flow Analysis over the Jet Pumps of a BWR-5 Reactor

Science and Technology of Nuclear Installations, 2021
The recirculation system of a BWR-5 has 20 jet pumps. They are submerged in water in the cylindrical annular zone of the reactor. Their main function is the development of a forcing flow through the nuclear core.
G. Soto-Mendoza, A. Armenta-Molina, S. Pérez-Montejo, L.H. Hernández-Gómez, P. Ruiz-López, G.M. Urriolagoitia-Calderón, J.A. Beltrán-Fernández   +6 more
doaj   +1 more source

Geminate recombination of hydroxyl radicals generated in 200 nm photodissociation of aqueous hydrogen peroxide

, 2005
The picosecond dynamics of hydroxyl radicals generated in 200 nm photoinduced dissociation of aqueous hydrogen peroxide have been observed through their transient absorbance at 266 nm.
Behar, Boyle, Czapski, Dainton, Dmitri A. Oulianov, Elliot, Ilya A. Shkrob, Loraine, Lorenc, Lunak, Lymar, Myran C. Sauer, Nielsen, Pagsberg, Robert A. Crowell, Rui Lian, Schuler, Shushin, Shushin, Thomas, Volman, Weeks, Weeks   +22 more
core   +1 more source

High‐Throughput Exfoliation of Optoelectronic‐Grade MoS2 via Turbulent‐Flow Wet Jet Milling

Advanced Functional Materials, EarlyView.
A scalable wet jet milling exfoliation method is demonstrated for producing optoelectronic‐grade MoS2 nanosheets using environmentally friendly ethyl cellulose in ethanol dispersion media. Guided by fluid dynamics modeling, this approach is optimized to achieve record‐high exfoliation throughput and concentration.
Maryam Khalaj, Shreyash S. Hadke, Lindsay E. Chaney, Janan Hui, Thomas Birge, Linda Li, Vinod K. Sangwan, Mark C. Hersam   +7 more
wiley   +1 more source

Study on Jet Pump Water Injection System for Offshore Platform Based on Energy Conservation

Shiyou jixie, 2017
In order to reduce the energy consumption of water injection in offshore platform, the idea of using jet pump instead of wellhead gate valve has been put forward. Taking the 14 water injection wells on a Bohai platform as case study, the JP1, JP2 and JP3
Wang Xiaohe, Yan Tingjun, Xie Shuangxi, Yu Jifei   +3 more
doaj  

Comparisons of Hydraulic Performance in Permanent Maglev Pump for Water-Jet Propulsion

Advances in Mechanical Engineering, 2014
The operation of water-jet propulsion can generate nonuniform inflow that may be detrimental to the performance of the water-jets. To reduce disadvantages of the nonuniform inflow, a rim-driven water-jet propulsion was designed depending on the ...
Puyu Cao, Yang Wang, K. X. Qian, Guidong Li   +3 more
doaj   +1 more source

A Non‐Reciprocal Architected Porous Medium

Advanced Functional Materials, EarlyView.
ABSTRACT In several fluid flow, energy‐dumping, and energy‐harvesting applications, a dominant flow direction or dominant resistance direction is desirable. In this study, we propose a simple modular geometry that doubles flow resistance in one direction relative to the opposite direction, while maintaining laminar viscous flow.
Clément Vezies, Pablo Zavattieri, Nicolás Silin   +2 more
wiley   +1 more source

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

Journal 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   +1 more source

Influence of Inlet Duct Length on the Hydraulic Performance of the Waterjet Propulsion Device

Shock and Vibration, 2021
This study uses a combination of computational fluid dynamics (CFD) and experimental research to explore the influence of the length of the inlet duct on the hydraulic performance of the water jet propulsion pump device.
Xionghuan Chen, Li Cheng, Chuan Wang, Can Luo   +3 more
doaj   +1 more source