Results 71 to 80 of about 81,954 (316)

A Non‐Reciprocal Architected Porous Medium

open access: yesAdvanced 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   +2 more
wiley   +1 more source

Jet noise : aeroacoustic distribution of a subsonic co-axial jet [PDF]

open access: yes
The noise generated by aircraft can be easily heard by those living under the flight path of passenger or cargo carriers. It is considered an environmental pollutant and is treated as such by the International Civil Aviation Organization (ICAO) who ...
Kiran, Amit
core  

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi   +3 more
wiley   +1 more source

Soot formation in turbulent vaporised kerosine/air jet flames at elevated pressure [PDF]

open access: yes, 1993
The objective of this thesis is to develop and validate a model of soot formation which is capable of being applied to a computational fluid dynamic (CFD) simulation of gas turbine combustion.
Young, K. J.
core  

External Intermittency Simulation in Turbulent Round Jets [PDF]

open access: yes, 2012
to study passive scalar mixing and intermittency in turbulent round jets. Both simulation techniques are applied to the case of a low Reynolds number jet with Re between time-averaged results for the scalar field of the low Re case demonstrate reasonable
Falle, SAEG   +15 more
core   +1 more source

Numerical Simulation Study on Supercritical Nitrogen Jet Flow Field

open access: yesShiyou jixie, 2021
Conventional hydraulic fracturing technology faces problems such as high fracture initiation pressure and difficult packer setting in the stimulation of hot dry rock reservoirs.
Luo Yi   +5 more
doaj  

Tool wear investigation in high-pressure jet coolant assisted machining Ti2AlNb intermetallic alloys based on FEM

open access: yesInternational Journal of Lightweight Materials and Manufacture, 2018
The excellent mechanical properties of Ti2AlNb intermetallic compounds are beneficial to improve the performance of aero-engine. However, because of their high strength ratio especially at high temperature along with the low thermal conductivity of ...
Jiuhua Xu   +3 more
doaj   +1 more source

Impinging Performance of High-Pressure Water Jets Emitting from Different Nozzle Orifice Shapes

open access: yesGeofluids, 2020
The impinging pressure of a water jet is a key factor in engineering applications, and the jet shape has a great influence on this pressure. In this paper, five different nozzle shapes were designed, and impacting tests were conducted based on a self ...
Fei Huang   +3 more
doaj   +1 more source

On acceleration of jets by radiation pressure

open access: yesThe Astrophysical Journal, 1982
Acceleration by radiation pressure could, in principle, explain the observed relativistic velocity of jets in extragalactic radio sources. The radiative aceleration mechanism is based on radiation beams that are produced and collimated in funnels (vortices) along the rotation axis of a thick accretion disk. These radiation beams accelerate particles to
openaire   +1 more source

High-pressure water jet injury to the chest

open access: yesTrauma Case Reports, 2023
The high-pressure water jet cutting method, which uses a high-pressure water stream to cut hard materials, is widely used because it does not generate sparks or dust. However, once the high-pressure water jet is accidentally fired at a human body, a large amount of water containing abrasive materials flows into the body in a short time, causing ...
openaire   +3 more sources

Home - About - Disclaimer - Privacy