Articles with "pulse detonation" as a keyword



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Numerical investigation of flame propagation and performance of obstructed pulse detonation engine with variation of hydrogen and air

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Published in 2019 at "Journal of the Brazilian Society of Mechanical Sciences and Engineering"

DOI: 10.1007/s40430-019-2024-0

Abstract: Pulse detonation engine is a new technique of supersonic wave propagation and stands for high impulsive thrust. The objective of the present investigation is to analyze the detonation wave characteristic of a hydrogen–air mixture in… read more here.

Keywords: propagation; flame; pulse detonation; detonation engine ... See more keywords
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Semi-valveless pulse detonation cycle at a kilohertz-scale operating frequency

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Published in 2019 at "Combustion and Flame"

DOI: 10.1016/j.combustflame.2019.04.035

Abstract: Abstract A high operating frequency of a pulse detonation engine is required to increase the thrust-to-engine weight ratio or thrust density. The semi-valveless pulse detonation cycle (PDC) proposed by Matsuoka et al. (2017) can achieve… read more here.

Keywords: operating frequency; pdc; frequency; semi valveless ... See more keywords
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Experimental investigation on multi-cycle two-phase spiral pulse detonation tube of two configurations

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Published in 2018 at "Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering"

DOI: 10.1177/0954410018817455

Abstract: The spiral tube structure is an effective method to shorten the axial length of the pulse detonation chamber. In this article, spiral pulsed detonation tube with two kinds of spiral configuration was experimentally investigated. Liquid… read more here.

Keywords: multi cycle; tube; pulse detonation; tube two ... See more keywords
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Numerical Investigation of Detonation Combustion Wave in Pulse Detonation Combustor with Ejector

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Published in 2017 at "Journal of Applied Fluid Mechanics"

DOI: 10.18869/acadpub.jafm.73.239.27266

Abstract: Detonation combustion based engines are more efficient compared to conventional deflagration based engines. Pulse detonation engine is the new concept in propulsion technology for future propulsion system. In this contrast, an ejector was used to… read more here.

Keywords: detonation combustion; ejector; pulse detonation; detonation ... See more keywords
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Research on the influence of different obstacle structures on the energy distribution characteristics of pulse detonation gas

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Published in 2021 at "Thermal Science"

DOI: 10.2298/tsci201026194l

Abstract: Abstract: In order to improve the gas energy conversion efficiency at the outlet of the pulse detonation combustor, numerical calculation methods were used to study the influence of three different cross-section obstacle structures of square,… read more here.

Keywords: gas; obstacle; pulse detonation; energy ... See more keywords
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Validation of Pulse-Detonation Operation in Low-Ambient-Pressure Environment

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Published in 2018 at "Journal of Propulsion and Power"

DOI: 10.2514/1.b36401

Abstract: A pulse-detonation thruster can generate a high-repeatability small impulse at a high operating frequency. To operate a pulse-detonation cycle in a vacuum environment without a purging material, a ... read more here.

Keywords: operation low; detonation operation; pulse detonation; validation pulse ... See more keywords
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Frequency and Spark Timing Effects on Thrust for Pulse Detonation Engine

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Published in 2021 at "Journal of Propulsion and Power"

DOI: 10.2514/1.b38049

Abstract: An experimental study was performed on an ethylene/oxygen/air pulse detonation engine to examine the effect of frequency and spark delay time on the thrust output and efficiency. Reactants were mix... read more here.

Keywords: frequency spark; detonation engine; pulse detonation;
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2-D Simulation with OH* Kinetics of a Single-Cycle Pulse Detonation Engine

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Published in 2019 at "Journal of Applied Fluid Mechanics"

DOI: 10.29252/jafm.12.04.29593

Abstract: Two-dimensional computational fluid dynamics (CFD) simulation with selected kinetics for H2–air mixture of a hydrogen-fuelled single-pulse detonation engine were performed through ANSYS FLUENT commercial software for diagnostic purposes. The results were compared with Chapman–Jouguet (CJ)… read more here.

Keywords: simulation kinetics; pulse detonation; detonation engine; detonation ... See more keywords