A review of recent developments in schlieren and shadowgraph techniques

GS Settles, MJ Hargather - Measurement Science and …, 2017 - iopscience.iop.org
Schlieren and shadowgraph techniques are used around the world for imaging and
measuring phenomena in transparent media. These optical methods originated long ago in …

Aeroacoustic resonance and self-excitation in screeching and im**ing supersonic jets–a review

D Edgington-Mitchell - International Journal of Aeroacoustics, 2019 - journals.sagepub.com
Supersonic jets, particularly shock-containing jets, often exhibit high-intensity, discrete-
frequency acoustic tones. These tones are the signature of an aeroacoustic resonance loop …

Free underexpanded jets in a quiescent medium: A review

E Franquet, V Perrier, S Gibout, P Bruel - Progress in Aerospace Sciences, 2015 - Elsevier
When dealing with high-pressure releases, be it needed by some operating conditions or
due to an emergency protocol or even to the occurrence of an accident, one has to consider …

Large-eddy simulation of highly underexpanded transient gas jets

V Vuorinen, J Yu, S Tirunagari, O Kaario, M Larmi… - Physics of …, 2013 - pubs.aip.org
Large-eddy simulations (LES) based on scale-selective implicit filtering are carried out in
order to study the effect of nozzle pressure ratios on the characteristics of highly …

Feedback loop and upwind-propagating waves in ideally expanded supersonic im**ing round jets

C Bogey, R Gojon - Journal of Fluid Mechanics, 2017 - cambridge.org
The aeroacoustic feedback loop establishing in a supersonic round jet im**ing on a flat
plate normally has been investigated by combining compressible large-eddy simulations …

Large-eddy simulation, convective instability, and modal causality of coaxial supersonic air–water jets considering a swirl effect

Y Liu, X Chu, W Wang, B Weigand - Physics of Fluids, 2023 - pubs.aip.org
An annular liquid sheet sheared by a coaxial supersonic gas stream with a swirling effect is
investigated using Large Eddy Simulation. Despite its wide applications in aerospace and …

A review of im**ing jets during rocket launching

C Jiang, T Han, Z Gao, CH Lee - Progress in Aerospace Sciences, 2019 - Elsevier
During rocket launching, the engine exhaust im**es on the launch structures, such as the
launch platform and the jet deflector, leading to a complex flowfield and generating strong …

Large eddy simulation of highly turbulent under-expanded hydrogen and methane jets for gaseous-fuelled internal combustion engines

A Hamzehloo, PG Aleiferis - International Journal of Hydrogen Energy, 2014 - Elsevier
Burning hydrogen in conventional internal combustion (IC) engines is associated with zero
carbon-based tailpipe exhaust emissions. In order to obtain high volumetric efficiency and …

Flow characteristic of highly underexpanded jets from various nozzle geometries

X Li, R Zhou, W Yao, X Fan - Applied Thermal Engineering, 2017 - Elsevier
Flow characteristics of highly underexpanded jets at the same nozzle pressure ratio of 5.60
but issuing from four different nozzles, ie, the circular, elliptic, square, and rectangular …

Visualization and analysis of the characteristics of transitional underexpanded jets

J Yu, V Vuorinen, O Kaario, T Sarjovaara… - International Journal of …, 2013 - Elsevier
Underexpanded jets can be formed when high-pressure gaseous fuel is injected directly into
an engine cylinder. In such conditions, shock waves are formed immediately near the nozzle …