Articles with "detonation initiation" as a keyword



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Effects of double-jet positions on detonation initiation characteristics

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Published in 2020 at "Aerospace Science and Technology"

DOI: 10.1016/j.ast.2019.105609

Abstract: Abstract In order to initiate the detonation waves efficiently, the ignition method of two jets was proposed and utilized to initiate the mixture of H2/Air in a detonation chamber. The numerical simulation based on H2/Air… read more here.

Keywords: detonation initiation; detonation waves; jet; detonation ... See more keywords
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Effect of ignition parameters on detonation initiation using toroidal shock wave focusing

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Published in 2020 at "Aerospace Science and Technology"

DOI: 10.1016/j.ast.2020.106421

Abstract: Abstract For fast detonation initiation, a novel compact initiator based on shock wave focusing has been proposed in our work. Two-dimensional numerical investigation was performed to understand the fast detonation initiation mechanism in hydrogen-air mixtures.… read more here.

Keywords: initiation; energy; detonation initiation; ignition ... See more keywords

Advancements on the propagation mechanism of a detonation wave in an obstructed channel

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Published in 2018 at "Combustion and Flame"

DOI: 10.1016/j.combustflame.2017.12.023

Abstract: Abstract Utilising a recently developed technique, involving high-speed schlieren photography shot through a soot-coated glass sheet, new details of the propagation of combustion waves in obstructed channels have been revealed. In this study, a channel… read more here.

Keywords: propagation; detonation initiation; channel; detonation ... See more keywords
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Shock focusing and detonation initiation at a flame front

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Published in 2019 at "Combustion and Flame"

DOI: 10.1016/j.combustflame.2019.02.012

Abstract: Abstract Multidimensional numerical simulations were performed to study the interaction of focused shock waves and a flame front leading to detonation initiation. The fully compressible Navier–Stokes equations, coupled with a chemical-diffusive model for energy release… read more here.

Keywords: detonation; detonation initiation; shock focusing; flame front ... See more keywords
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Investigation of Hot Jet Effect on Detonation Initiation Characteristics

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Published in 2017 at "Combustion Science and Technology"

DOI: 10.1080/00102202.2016.1225729

Abstract: ABSTRACT This article addresses the effect of hot jet condition on detonation initiation characteristics. Hot jets with different conditions were generated by changing the length of the pre-detonator. The change relationship between the detonation initiation… read more here.

Keywords: hot jet; detonation initiation; jet; initiation characteristics ... See more keywords
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Detonation Re-initiation behind an Aluminum Foam Plate in Stoichiometric Methane-oxygen Mixture

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Published in 2021 at "Combustion Science and Technology"

DOI: 10.1080/00102202.2021.1893703

Abstract: Porous materials can be used for accidental explosion prevention and suppression in process industries. In this study, an experimental study was conducted to study the effect of an aluminum foam pl... read more here.

Keywords: behind aluminum; aluminum foam; detonation initiation; aluminum ... See more keywords
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Numerical study on detonation initiation process in the chamber with characteristic structures of the dual-mode scramjet combustor

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Published in 2022 at "Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering"

DOI: 10.1177/09544100221107508

Abstract: In order to improve the performance of traditional ramjet, a ramjet based on pulse detonation (PD-Ramjet) instead of isobaric combustion was proposed. Several special-shaped detonation chambers which retained the characteristic structures of the dual-mode scramjet… read more here.

Keywords: detonation; initiation process; characteristic structures; detonation initiation ... See more keywords