Results 11 to 20 of about 9,283 (259)

Determination of laser entrance hole size for ignition-scale octahedral spherical hohlraums

open access: yesMatter and Radiation at Extremes, 2022
A recently proposed octahedral spherical hohlraum with six laser entrance holes (LEHs) is an attractive concept for an upgraded laser facility aiming at a predictable and reproducible fusion gain with a simple target design.
Yao-Hua Chen   +33 more
doaj   +1 more source

Robust and ultralow-energy-threshold ignition of a lean mixture by an ultrashort-pulsed laser in the filamentation regime

open access: yesLight: Science & Applications, 2021
Laser ignition (LI) allows for precise manipulation of ignition timing and location and is promising for green combustion of automobile and rocket engines and aero-turbines under lean-fuel conditions with improved emission efficiency; however, achieving ...
Hongwei Zang   +6 more
doaj   +1 more source

Controllable combustion behaviors of the laser-controlled solid propellant

open access: yesDefence Technology, 2022
Microsatellites have been widely applied in the fields of communication, remote sensing, navigation and science exploration due to its characteristics of low cost, flexible launch mode and short development period.
Bu-ren Duan   +7 more
doaj   +1 more source

Laser–plasma interactions for fast ignition [PDF]

open access: yesNuclear Fusion, 2014
In the electron-driven fast-ignition approach to inertial confinement fusion, petawatt laser pulses are required to generate MeV electrons that deposit several tens of kilojoules in the compressed core of an imploded DT shell. We review recent progress in the understanding of intense laser plasma interactions (LPI) relevant to fast ignition.
A.J. Kemp   +7 more
openaire   +2 more sources

Study of the length and influencing factors of air plasma ignition time

open access: yesOpen Physics, 2022
When a high-energy laser acts on a film surface, plasma flashes of both the air and film can be generated simultaneously. However, when the conventional plasma flash method is used to identify thin film damage, there is a misjudgment problem caused by ...
Wang Guixia, Su Junhong
doaj   +1 more source

Ignition of nanothermites by a laser diode pulse

open access: yesDefence Technology, 2022
Experimental investigation has been carried out for laser ignition and combustion of nanothermites based on aluminum and oxides of copper, bismuth and molybdenum. Ultrasonic mixing of nanosized powders was used to produce compositions.
Alexander Yu. Dolgoborodov   +5 more
doaj   +1 more source

Numerical investigation of forced ignition in laminar counterflow non-premixed methane-air flames [PDF]

open access: yes, 2007
Simulations of forced ignition of non-premixed laminar counterflow flames are used to study the effect of strain rate on ignition success. A one dimensional calculation is performed, using detailed methane chemical kinetics and treating the spark as an ...
Richardson, E.S., Mastorakos, E.
core   +1 more source

Experimental investigations into high-altitude relight of a gas turbine [PDF]

open access: yes, 2008
This thesis describes experiments to investigate high-altitude relight of a lean direct injection (LDI) combustor. The features that make LDI technology less polluting in terms of NOx compared to conventional combustors are expected to impede relight ...
Read, Robert William
core   +2 more sources

Study on the Ignition Process and Characteristics of the Nitrate Ester Plasticized Polyether Propellant

open access: yesInternational Journal of Aerospace Engineering, 2020
In this study, a CO2 laser ignition experimental system was built to study the ignition process and characteristics of the Nitrate Ester Plasticized Polyether (NEPE) propellant.
Xiaoting Yan   +6 more
doaj   +1 more source

Future for inertial-fusion energy in Europe: a roadmap

open access: yesHigh Power Laser Science and Engineering, 2023
The recent achievement of fusion ignition with laser-driven technologies at the National Ignition Facility sets a historic accomplishment in fusion energy research.
Dimitri Batani   +13 more
doaj   +1 more source

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