Results 21 to 30 of about 2,233 (228)
Application of Gap Metric to LADRC Design in Multilinear Model of SDR
International Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022 The solid ducted rocket ramjet (SDR) system faces many disturbances in the process of operation, and the linear active disturbance rejection controller (LADRC) has been widely used in engineering to solve such problems. However, the SDR also has strong nonlinearity, which brings a great challenge to the application of the LADRC in the gas flow ...
Hongfu Wang +4 more
wiley +1 more source
Comparative performance analysis of combined-cycle pulse detonation turbofan engines (PDTEs)
Propulsion and Power Research, 2013 Combined-cycle pulse detonation engines are promising contenders for hypersonic propulsion systems. In the present study, design and propulsive performance analysis of combined-cycle pulse detonation turbofan engines (PDTEs) is presented.
Sudip Bhattrai, Hao Tang
doaj +1 more source
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
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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
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
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Numerical Simulation on Aerodynamics of Ramjet Projectiles [PDF]
, 2011 Three-dimensional Reynolds-averaged Navier-Stokes simulations have been performed to explore the aerodynamic characteristics of ramjet projectiles. The turbulence model used is the RNG k-ε model.
Rui Min Liu, Jia Xian Zhang, Yan Na Wang
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PRELIMINARY ANALYSIS OF SUPERCHARGED NUCLEAR RAMJET PROPULSION SYSTEM [PDF]
, 1957 A preliminary analysis has been made to compare the performance.of a ceramic ramjet reactor powerplant, such as described in General Electric Report No.
Boppart, J. A.
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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
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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