Results 41 to 50 of about 344,288 (252)

Improved high-performance shock tube [PDF]

open access: yes, 1972
Mylar diaphragms in shock tubes are a major improvement over steel diaphragms. Other improvements include: better electrode design; improved flow by opening the throat and removing all constrictions; and improved driver geometry by optimizing volume and ...
Menard, W. A.
core   +1 more source

Numerical Studies of Particle-Gas Two-Phase Flowing through Microshock Tubes

open access: yesShock and Vibration, 2021
Microshock tubes are always used to induce shock waves and supersonic flows in aerospace and medical engineering fields. A needle-free drug delivery device including a microshock tube and an expanded nozzle is used for delivering solid drug powders ...
Guang Zhang   +5 more
doaj   +1 more source

Single-frequency reflection characterisation of shock tube excited plasma

open access: yesAIP Advances, 2017
Plasma has been of great interest to engineers and scientists during the past few decades due to its wide applications. Besides, the plasma-sheath-caused lose of communication (i.e. re-entry blackout) that happens when a spacecraft re-
Jing Tian   +6 more
doaj   +1 more source

A multiscale approach to blast neurotrauma modeling: Part I - Development of novel test devices for in vivo and in vitro blast injury models

open access: yesFrontiers in Neurology, 2012
The loading conditions used in some current in vivo and in vitro blast-induced neurotrauma models may not be representative of real-world blast conditions.
Matthew B Panzer   +5 more
doaj   +1 more source

A Novel Device for Bursting Shock-Tube Diaphragms [PDF]

open access: yes, 1961
The new GALCIT 17-in. low-pressure shock tube is equipped with a novel device which was designed to overcome some of the difficulties encountered in attempting to precisely select and control the bursting pressure of very thin diaphragms. This device is
Baganoff, D., Roshko, A.
core   +1 more source

Study on shock wave propagation behavior and induced spontaneous combustion characteristics in high-pressure hydrogen leakage under varying discharge conditions

open access: yesYou-qi chuyun
[Objective] Hydrogen, being a clean and efficient energy source, holds significant potential in addressing challenges like energy shortage. However, its inherent high risk of fire poses a major obstacle to its broader applications.
WU Di, LI Yixuan, CUI Gan
doaj   +1 more source

Study on propagation characteristics of shock waves during the leakage of a high-pressure hydrogen/methane mixture

open access: yes工程科学学报
The transition from traditional fossil fuels to the widespread use of hydrogen energy marks a critical phase in energy evolution. Hydrogen/methane mixtures, serving as crucial carriers of hydrogen energy, play a key role in this process.
Shangyong ZHOU   +9 more
doaj   +1 more source

Shock Tube Combustion Analysis

open access: yes, 2021
The shock tube is a metal tube that the gas at low pressure and high pressure are separated by a diaphragm. When the diaphragm (make of material copper and aluminum) breaks on predetermined conditions (high pressure in this case) produces shock waves that move from the high-pressure chamber (known the compression chamber or Driver section) for low ...
Marcio, Santana, Claudio   +1 more
openaire   +3 more sources

Numerical Simulation to Study the Effects of Riemann Problems on the Physical Properties of the Astrophysics Gas Dynamics

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2017
In this work we run simulation of gas dynamic problems to study the effects of Riemann problems on the physical properties for this gas. We studied a normal shock wave travels at a high speed through a medium (shock tube).
L. Y. S. Al-Mashhadani
doaj  

Transmission and Emission of Solar Energetic Particles in Semi-transparent Shocks. [PDF]

open access: yes, 2014
While major solar energetic particle (SEP) events are associated with coronal mass ejection (CME)-driven shocks in solar wind, accurate SEP measurements reveal that more than one component of energetic ions exist in the beginning of the events.
Axford   +21 more
core   +1 more source

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