Results 11 to 20 of about 55,357 (266)

Jet flow rate and needle position govern distal airway pressures during low‐frequency jet ventilation

open access: yesLaryngoscope Investigative Otolaryngology, 2021
Objectives Although jet ventilation is frequently used during surgery for airway stenosis, little is known about distal airway pressures during jet ventilation.
Joshua Pertile   +5 more
doaj   +1 more source

Transient pressure modeling in jetting animals

open access: yesJournal of Theoretical Biology, 2020
There are many marine animals that employ a form of jet propulsion to move through the water, often creating the jets by expanding and collapsing internal fluid cavities. Due to the unsteady nature of this form of locomotion and complex body/nozzle geometries, standard modeling techniques prove insufficient at capturing internal pressure dynamics, and ...
Michael Krieg, Kamran Mohseni
openaire   +3 more sources

Research on influence characteristics of water jet impact on borehole gas drainage

open access: yesGong-kuang zidonghua, 2020
Water jet based borehole permeability enhancement technology is an effective way to increase coal-seam permeability and gas drainage rate. However, influence characteristics of water jet impact on borehole gas drainage are indeterminate at present.
GAO Yabin   +4 more
doaj   +1 more source

Detached eddy simulation on the structure of swirling jet flow field

open access: yesPetroleum Exploration and Development, 2022
The improved delayed detached eddy simulation method with shear stress transport model was used to analyze the evolution of vortex structure, velocity and pressure fields of swirling jet.
Jianxiang CHEN   +6 more
doaj   +1 more source

Pressure-informed velocity estimation in a subsonic jet [PDF]

open access: yesPhysical Review Fluids, 2022
39 pages, 25 figures This draft was prepared for the submission to Physical Review ...
Songqi Li, Lawrence Ukeiley
openaire   +2 more sources

Identifying the processes and characterizing the pressure zone of water jet impacting on solid surface

open access: yesAdvances in Mechanical Engineering, 2022
The difficulty in understanding the flow characteristics of water jets impacting on solid surfaces made the water jet technology requiring further investigations. The Arbitrary Lagrange-Euler (ALE) method is used to develop a numerical model of the water
Jianguo Zhang   +3 more
doaj   +1 more source

Improvement of the Quality of Cryogenic Machining by Stabilization of Liquid Nitrogen Jet Pressure [PDF]

open access: yes한국정밀공학회지, 2017
Titanium alloy has been widely used in the aerospace industry because of its high strength and good corrosion resistance. During cutting, the low thermal conductivity and high chemical reactivity of titanium generate a high cutting temperature and ...
Myeong Gu Gang   +3 more
doaj   +1 more source

Experimental study on jet flow characteristics of fire water monitor

open access: yesThe Journal of Engineering, 2018
Fire water monitor is an important part of a sprinkler system. In this study, the jet flow characteristics of the external jet of the fire water monitor are studied. The water jet system is used to launch the water jet experiment under six pressures.
Xiumei Liu   +3 more
doaj   +1 more source

Experimental study on optimization of process parameters of ultra-high pressure abrasive water jet

open access: yesMeikuang Anquan, 2023
In order to improve the cutting efficiency of abrasive water jet, the cutting effect of limestone with different process parameters was studied through the developed ultra-high pressure abrasive water jet cutting system.
ZHANG Lulu, LI Luyuan, ZHANG Runxu
doaj   +1 more source

Experimental investigation on high-pressure methane jet characteristic single-hole injector

open access: yesHeliyon, 2023
High-pressure gas direct injection (DI) technology benefits engines with high efficiency and clean emissions, and the gas jet process causes crucial effects especially inside an mm-size space.
Yan Lei   +6 more
doaj   +1 more source

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