Results 1 to 10 of about 8,406 (224)
International Journal of Aerospace Engineering, 2023 Liquid oxygen chill-down in a straight horizontal pipe was studied experimentally. The effect of the entrance corner was excluded, and much denser wall temperature sensors along the pipe have been set compared to the present studies.
Lanwei Chen, Jiaqi Zhang
doaj +2 more sources
Aerospace, 2023 Vitiation air heater (VAH) combustion characteristics for a direct-connect scramjet combustor (DCSC) were experimentally studied. The VAH consists of a head, modular chamber, and circular-to-rectangular shape transition (CRST) nozzle.
Jeong-Yeol Choi +2 more
exaly +2 more sources
Supersonic Combustion Mode Analysis of a Cavity Based Scramjet
Aerospace, 2022 Since flame stability is the key to the performance of scramjets, scramjet combustion mode and instability characteristics were investigated by using the POD method based on a cavity-stabilized scramjet. Experiments were developed on a directly connected
Yu Meng +4 more
doaj +2 more sources
Numerical Investigation on the Effect of Fuel-Rich Degree in the RBCC Engine under the Ejector Mode
International Journal of Aerospace EngineeringThe 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 ...
Yizhi Yao +9 more
doaj +2 more sources
Comparison of Dual-Combustion Ramjet and Scramjet Performances Considering Combustion Efficiency
Applied Sciences, 2022 The performances of a dual-combustion ramjet (DCR) and a scramjet were compared via computational fluid dynamics numerical simulation to provide theoretical guidance for engine selection for a hypersonic vehicle.
Xianju Wu, Zhijun Wei
doaj +2 more sources
The Combustion Characteristics of Double Ramps in a Strut-Based Scramjet Combustor
Energies, 2021 This paper focuses on the influence of ramp locations upstream of a strut-based scramjet combustor under reacting flow conditions that are numerically investigated. In contrast, a computational study is adopted using Reynolds Averaged Navier Stokes (RANS)
A. Antony Athithan +4 more
doaj +2 more sources
Rate Constants and Energetics of the H<sub>2</sub>SiO + H Reaction System: RP-VTST/MT and VRC Calculations. [PDF]
J Comput ChemThe decomposition of Silaformaldehyde (H2SiO) involves three reactions: H + H2SiO → H2 + HSiO (R1), H + H2SiO → H2SiOH (R2), and H + H2SiO → H3SiO (R3). Accurate energetics were calculated using ωB97X‐D and CCSD(T), and rate constants using CVT methods with multidimensional tunneling.
Pontes MAP +4 more
europepmc +2 more sources
Direct-Connect Test of Solid Scramjet with Symmetrical Structure
Energies, 2021 The solid scramjet has become one of the most promising engine types. In this paper, we report the first direct-connect test of a solid scramjet with symmetrical structure, carried out using boron-based fuel-rich solid propellant as fuel. During the test,
Pengnian Yang +6 more
doaj +1 more source
The Physics of Fluids, 2023 Well-known analytical approaches are commonly adopted for the preliminary design of scramjet engines. In this context, the combustion process in the combustion chamber can be modeled by considering heat addition to the airflow at supersonic speed.
semanticscholar +1 more source
Numerical Investigation of Contact Burning in an Air-Breathing Continuous Rotating Detonation Engine
International Journal of Aerospace Engineering, 2022 Three-dimensional (3D) numerical simulations of a continuous rotating detonation engine are carried out with an unsteady Reynolds-averaged Navier-Stokes solver.
Dapeng Xiong +7 more
doaj +1 more source