Results 51 to 60 of about 139,373 (174)

Effect of Bluff Body Attributes on Afterburner Combustion Characteristics of a Boron Solid Rocket Scramjet

open access: yesInternational Journal of Aerospace Engineering, Volume 2024, Issue 1, 2024.
In order to improve the combustion efficiency of boron‐containing primary gas in the secondary combustion chamber of a solid rocket scramjet and improve engine performance, the effects of different types of blunt bodies, number of rear blunt bodies, and distance between front and rear blunt bodies on the combustion performance of the secondary ...
Jiang Ling   +4 more
wiley   +1 more source

Inlet conditions of the scramjet inlet isolator [22].

open access: yes, 2019
Inlet conditions of the scramjet inlet isolator [22].
Jaewon Lee (268736)   +1 more
core   +1 more source

Machine Learning‐Based Backpressure Unstart Prediction and Warning Method for Combined Cycle Engine Hypersonic Inlet‐Oriented Wide Speed Range

open access: yesInternational Journal of Aerospace Engineering, Volume 2024, Issue 1, 2024.
Inlet unstart prediction and warning are strictly crucial to the operation of hypersonic engines, especially for combined cycle engines where implementation across a wide speed range poses significant challenges. This paper proposes a realization method that involves constructing the conditions of critical backpressure ratios for the inlet unstart and ...
Ke Min   +6 more
wiley   +1 more source

Three-dimensional sidewall-compression scramjet inlet CFD simulation and experimental comparison

open access: yes, 2003
A combination of CFD simulation and experimental comparison has been conducted for a generic three-dimensional sidewall-compression scramjet inlet configuration at Mach 5.8 with total pressure 5 MPa and total temperature 2000 K. The computational studies
Chang XY(张新宇), Chen F, 陈立红
core   +1 more source

Dynamic fluid flow characteristics in the hydrogen-fuelled scramjet combustor with transverse fuel injection

open access: yesCase Studies in Thermal Engineering, 2019
The standard k- ε turbulence model, two dimensional NavierStokes equations along with eddy-dissipation/finite-rate reaction model has been applied to analyze the flow dynamics of the scramjet combustor with the cold-flow and ignited engine conditions. In
S.K. Gugulothu, Prabhu Kishore Nutakki
doaj   +1 more source

Aerodynamic Study of the NASA’s X-43A Hypersonic Aircraft

open access: yesApplied Sciences, 2020
A 2D aerodynamic study of the NASA’s X-43A hypersonic aircraft is developed using two different approaches. The first one is analytical and based on the resolution of the oblique shock wave and Prandtl–Meyer expansion wave theories supported by an in ...
Àlex Navó, Josep M. Bergada
doaj   +1 more source

Numerical Investigation on the Effect of Fuel‐Rich Degree in the RBCC Engine under the Ejector Mode

open access: yesInternational Journal of Aerospace Engineering, Volume 2024, Issue 1, 2024.
The ejector mode of the Rocket‐Based Combined‐Cycle (RBCC) engine is characterized by high fuel consumption. This study is aimed at investigating the influence of the rocket fuel‐rich degree on the RBCC engine’s performance under the ejector mode combined with simultaneous mixing and combustion (SMC).
Yizhi Yao   +10 more
wiley   +1 more source

Design of a Scramjet Nozzle with Streamline Tracing Technique and Reference Temperature Methode [PDF]

open access: yes, 2011
This study presents a method to find an optimal shape of a three-dimensional supersonic nozzle for a rectangular scramjet combustion chamber with rounded edges by taking into account the skin friction effects.
Gülhan, Ali, Riehmer, Johannes
core  

Schematic of the scramjet inlet isolator.

open access: yes, 2019
Schematic of the scramjet inlet isolator.
Jaewon Lee (268736)   +1 more
core   +1 more source

Numerical Study on Flow and Heat Transfer of Supercritical Hydrocarbon Fuel in Curved Cooling Channel

open access: yesApplied Sciences, 2022
The fluid flow and heat transfer of hydrocarbon fuel play a significant role in developing regenerative cooling technology for advanced aeroengines. Numerical simulations have been conducted to investigate the flow and heat transfer characteristics of ...
Ying Zhang   +5 more
doaj   +1 more source

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