Results 11 to 20 of about 10,850 (227)
Progress of hydrogen subsonic commercial aircraft
Frontiers in Energy Research, 2023 Hydrogen may substitute traditional hydrocarbon fuels in propeller and jet aircraft. In the case of propeller propulsion, the use of combustion engines is preferable to fuel cells plus electric motors.
Alberto Boretti
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IEEE Access, 2022 There are serious among various components of the hypersonic vehicle at wide-range Mach numbers, and the coupling among aerodynamic shape, propulsion system, structure, and control system is remarkable.
Jiaxin Li +3 more
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Considerations and simulations about Pulse Detonation Engine [PDF]
MATEC Web of Conferences, 2019 PDE propulsion can work from a subsonic regime to hypersonic regimes; this type of engine can have higher thermodynamic efficiency compared to other turbojet or turbofan engines due to the removal of rotating construction elements (compressors and ...
Prisacariu Vasile +2 more
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Advances in Aerodynamics, 2020 Advanced sensing techniques are in big demand for applications in hypersonic wind tunnel harsh environments, such as aero(thermo)dynamics measurements, thermal protection of aircraft structures, air-breathing propulsion, light-weighted and high-strength ...
Huacheng Qiu, Fu Min, Yanguang Yang
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An Improved Method for Initial Sizing of Airbreathing Hypersonic Aircraft
Aerospace, 2023 One essential problem in aircraft conceptual design is initial sizing in which the aircraft primary parameters such as weight, size, and thrust are estimated for given design requirements.
Yalin Dai +3 more
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Feasibility and Performance Analysis of High-Energy-Density Hydrocarbon-Fueled Turboexpander Engine
Aerospace, 2023 With the in-depth research on hypersonic aerodynamics and hypersonic propulsion technology, humans are growing closer to space travel. Recent studies have shown that the pre-cooled air-turborocket (ATR) or turboexpander engines are some of the potential ...
Jin Gao +5 more
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Unsteady Oblique Detonation Waves in a Tunnel Induced by Inflow Mach Number Variation
Aerospace, 2023 Oblique detonation waves (ODWs) have been investigated widely aiming at facilitating their application in hypersonic engines. However, there is a lack of research on unsteady ODWs which are unavoidable in the hypersonic air-breathing scenario.
Shuzhen Niu +3 more
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Status of turbulence modeling for hypersonic propulsion flowpaths [PDF]
Theoretical and Computational Fluid Dynamics, 2011 This report provides an assessment of current turbulent flow calculation methods for hypersonic propulsion flowpaths, particularly the scramjet engine. Emphasis is placed on Reynolds-averaged Navier–Stokes (RANS) methods, but some discussion of newer methods such as large eddy simulation (LES) is also provided.
Nicholas Georgiadis +3 more
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Ramjet Nozzle Analysis for Transport Aircraft Configuration for Sustained Hypersonic Flight
Applied Sciences, 2018 For the past several decades, research dealing with hypersonic flight regimes has been restricted mainly to military applications. Hypersonic transportation could be a possible and affordable solution to travel in the medium term and there is renewed ...
Raman Baidya +2 more
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Thermal Protection System and Thermal Management for Combined-Cycle Engine: Review and Prospects
Energies, 2019 Combined-cycle engine is a potential propulsion system for hypersonic aircraft. To ensure long-term, normal operation of combined-cycle engine under the harsh environment of high thermal load, it is of great significance to study the thermal protection ...
Yiwei Dong +4 more
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