Results 31 to 40 of about 4,462 (234)

Combustion Modes and Unsteady Characteristics during the Condition Transition of a Scramjet Combustor

open access: yesEnergies, 2021
To investigate the combustion modes and unsteady characteristics during the condition transition of a scramjet combustor, a series of experiments were carried out under the condition of Mach 2.52 supersonic incoming flow, the corresponding stagnation ...
Dongpeng Jia   +4 more
doaj   +1 more source

Numerical Study on the Solid Fuel Rocket Scramjet Combustor with Cavity

open access: yesEnergies, 2019
Scramjet based on solid propellant is a good supplement for the power device of future hypersonic vehicles. A new scramjet combustor configuration using solid fuel, namely, the solid fuel rocket scramjet (SFRSCRJ) combustor is proposed.
Chaolong Li   +4 more
doaj   +1 more source

Simulation of Elliptical Liquid Jet Primary Breakup In Supersonic Crossflow

open access: yesInternational Journal of Aerospace Engineering, 2020
The study of elliptical liquid jets in supersonic flow in a Mach 2.0 is performed numerically. The primary breakup process of the elliptical liquid jet is simulated for a Weber number 223, liquid/gas flux momentum 4.0.
Yao-zhi Zhou   +3 more
doaj   +1 more source

Effects of Oxygen Enrichment on Supersonic Combustion in a Mach 10 Scramjet [PDF]

open access: yes, 2021
Scramjet engines are a suitable replacement for rockets in access-to-space systems, but, being air-breathing engines, their operational envelope is limited to altitudes where enough oxygen is available for combustion.
Wheatley, Vincent   +3 more
core   +1 more source

Large Eddy Simulation and Dynamic Mode Decomposition of Supersonic Combustion Instability in a Strut-Based Scramjet Combustor

open access: yesAerospace, 2023
Supersonic combustion instability studies are crucial for the future maturation of scramjet engines. In the present paper, the supersonic combustion instability in a strut-based scramjet combustor is investigated through large eddy simulation and dynamic
Yuwei Cheng   +3 more
doaj   +1 more source

The Combustion Characteristics of Double Ramps in a Strut-Based Scramjet Combustor

open access: yesEnergies, 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   +1 more source

A Mixing Process Influenced by Wall Jet-Induced Shock Waves in Supersonic Flow

open access: yesApplied Sciences, 2022
With the development of hypersonic air-breathing propulsion systems, such as the supersonic combustion ramjet (Scramjet) and rocket-based combined cycle (RBCC) engines, the mixing process of supersonic airstream with fuel in the engine combustor has been
Ji Zhang   +3 more
doaj   +1 more source

Effects of Sidewall Compression and Relaminarization in a Scramjet Inlet

open access: yes, 2013
This paper presents the numerical simulations and the performance analysis of a scramjet inlet as part of a combined experimental and numerical study.
Hohn, Oliver   +4 more
core   +1 more source

Numerical Investigations of the Effects of Sidewall Compression and Relaminarization in 3D Scramjet Inlet

open access: yes, 2011
This paper presents the numerical simulations and performance analysis of a 3D scramjet inlet with focus on the effects of sidewall compression and relaminarization. A well-validated finite volume flow solver was used to simulate a scramjet inlet with a
Marek Behr   +9 more
core   +1 more source

Numerical study of detonation wave propagation modes in annular channels

open access: yesAIP Advances, 2021
Modes of detonation wave propagation in annular channels were investigated numerically by using the adaptive mesh refinement technique. Two-dimensional, reactive Euler equations with a detailed hydrogen/oxygen reaction model were adopted in the ...
Duo Zhang   +6 more
doaj   +1 more source

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