Results 21 to 30 of about 6,709 (233)
Acta Astronautica, 2022 Abstract In 1969, John Ford Fishback proposed a solution for the interstellar ramjet with magnetic scooping. With the exception of two papers published in the early 1970s, this model has not been revisited up to now for viability. Here, we analyse Fishback’s axial scoop field configuration.
Peter Schattschneider, Albert A. Jackson
openaire +1 more source
A Preliminary Research on Combustion Characteristics of a Novel‐Type Scramjet Combustor
International Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022 In this work, a new configuration of strut‐based scramjet is proposed, and a series of simulations are conducted to investigate its possibility of practical application. The simulation results are verified via the classical DLR ramjet and an experiment conducted on the connected pipe facility.
Linqing Zhang +5 more
wiley +1 more source
Effect of tangential swirl air inlet angle on the combustion efficiency of a hybrid powder-solid ramjet [PDF]
, 2019 A new ramjet configuration using powder and solid fuel as propellant is investigated, namely, hybrid powder-solid ramjet (HPSR). Boron particles were used as the powder in this study.
ANSYS Inc +49 more
core +1 more source
Numerical Simulation of Single‐Mode 3D Rayleigh‐Taylor Instability
Modelling and Simulation in Engineering, Volume 2022, Issue 1, 2022., 2022 Rayleigh‐Taylor instability (RTI) is analyzed theoretically by Taylor, and 2‐dimensional experimental results are obtained by Lewis in 1950. Over the 72 years, several experiments and theories are developed with the shock‐driven Ritchmyer‐Meshkov instability (RMI) and the shear‐driven Kelvin‐Helmholtz instability (KHI).
Dongyung Kim, Houari Ameur
wiley +1 more source
Overview of Research Progress on Solid Rocket Ramjet Engines [PDF]
EPJ Web of ConferencesSolid rocket ramjet engines are the ideal propulsion devices for high-speed aircraft. This article reviews the research history of solid rocket ramjet engines, analyzes the latest developments both domestically and internationally, and summarizes the key
Dong Yan, Hu Jinchuan
doaj +1 more source
The Response of Normal Shocks in Diffusers [PDF]
, 1983 The frequency response of a normal shock in a diverging channel is calculated for application to problems of pressure oscillations in ramjet engines. Two limits of a linearized analysis arc discussed: one represents isentropic flow on both sides of a ...
Culick, F. E. C., Rogers, T.
core +1 more source
Open-Sea Testing of Two-Phase Marine Ramjet Propulsion
Journal of Marine Science and Engineering, 2023 Open-sea testing of a two-phase marine ramjet vehicle has been conducted. This experimental phase was accomplished following comprehensive theoretical research. The concept of two-phase marine ramjet propulsion consists of a submerged propulsor acquiring
Shlomit Valensi, Alon Gany
doaj +1 more source
Stagnation Hugoniot Analysis for Steady Combustion Waves in Propulsion Systems [PDF]
, 2006 The combustion mode in a steady-flow propulsion system has a strong influence on the overall efficiency of the system. To evaluate the relative merits of different modes, we propose that it is most appropriate to keep the upstream stagnation state fixed ...
Shepherd, J. E., Wintenberger, E.
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A Scramjet Compression System for Hypersonic Air Transportation Vehicle Combined Cycle Engines
Energies, 2018 This paper proposes a compression system for a scramjet, to be used as part of a combined cycle engine on a hypersonic transport vehicle that can achieve sustained flight at 8 Mach 8.
Devendra Sen +2 more
doaj +1 more source
Energies, 2019 This paper presents a numerical investigation of ignition and combustion stabilization of a novel design of a solid-fuel ramjet (SFRJ) motor with and without swirl flow.
Omer Musa +4 more
doaj +1 more source