Results 61 to 70 of about 4,462 (234)
Large-eddy simulation of kerosene spray combustion in a model scramjet chamber
, 2010 Large-eddy simulation (LES) of kerosene spray combustion in a model supersonic combustor with cavity flame holder is carried out. Kerosene is injected through the ceiling of the cavity.
Zhang, Man +3 more
core +1 more source
International Journal of Aerospace Engineering, Volume 2025, Issue 1, 2025.The choice of turbulence model significantly impacts the prediction of the supersonic combustion flow field. In this study, the transient autoignition process and steady supersonic combustion performance of methane fuel with adjustable reactivity in a scramjet combustor were numerically investigated, employing different turbulence models including ...
Zihan Wang +6 more
wiley +1 more source
CFD Analysis of Supersonic Exhaust in a Scramjet Engine [PDF]
, 2013 When pressures and temperatures become so high in supersonic flight that it is no longer efficient to slow the oncoming flow to subsonic speeds for combustion, a scramjet (supersonic combustion ramjet) is used in place of a ramjet. This
Rudra Murthy, . +2 more
core
Structural evolution and oxidation resistance of polysilazane‐derived SiCN–HfO2 ceramics
Journal of the American Ceramic Society, Volume 107, Issue 3, Page 1657-1668, March 2024.Abstract Polymer‐derived SiCN materials have great application potential in high‐temperature environments. In the current work, SiCN ceramics were tailored with Hf incorporation through doping of a molecular precursor in the preceramic polymer. The ceramics remained in a single amorphous phase up to 900°C.
Rahul Anand +3 more
wiley +1 more source
Development of the facility for model scramjet testing [PDF]
, 2001 A hypersonic propulsion test facility has been constructed in IMCAS (Institute of Mechanics, Chinese Academy of Sciences) in order to provide a high enthalpy hypersonic flow for a model scramjet testing. The vitiated air is produced by a hydrogen/air and
俞刚 +3 more
core +1 more source
International 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
International 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
, 2011 This paper reports the simultaneous measurements of multiple flow parameters in a scramjet facility operating at a nominal Mach number of 2.5 using a sensing system based on tunable diode-laser absorption spectroscopy (TDLAS).
李智 +8 more
core +1 more source
Theoretical analysis of effects of boundary layer bleed on scramjet thrust [PDF]
, 2013 The effects of boundary layer bleed on the scramjet thrust are studied in the present paper. A theoretical model is developed to evaluate the thrust increment and influencing factors. The thrust increment resulting from the bleed is dominated by the rise
Yue LJ(岳连捷) +3 more
core +1 more source
AerospaceA micro-pulse detonation engine (μPDE) was designed and installed to a direct-connect scramjet combustor of Pusan National University (PNU-DCSC). The active excitation on the scramjet combustor was experimentally studied using the μPDE operating at ...
Keon-Hyeong Lee +3 more
doaj +1 more source