Results 31 to 40 of about 34,664 (208)

Pseudo-shock waves and their interactions in high-speed intakes [PDF]

open access: yes, 2016
In an air-breathing engine the flow deceleration from supersonic to subsonic conditions takes places inside the isolator through a gradual compression consisting of a series of shock waves.
Gnani, F., Kontis, K., Zare-Behtash, H.
core   +1 more source

Experimental Study of Influence of Secondary Combustion on Combustion Characteristics of Axial Staged Combustor

open access: yesShanghai Jiaotong Daxue xuebao
In order to obtain the influencing rule of secondary combustion on emissions and combustion oscillation characteristics of gas turbine axial staged combustor in non-premixed combustion mode and explore a load increasing mode with stable low emission, an ...
SUI Yongfeng, ZHANG Yuming, ZANG Peng, JIA Yuliang, HENG Sijiang, FU Yanni, GE Bing
doaj   +1 more source

Servo-Stabilization of Low-Frequency Oscillations in a Liquid Bipropellant Rocket Motor [PDF]

open access: yes, 1953
The recent work of H. S. Tsien concerning the servostabilization of rocket motors is extended to the liquid bipropellant rocket motor. It is shown that by use of a feedback system containing a device to sense the combustion chamber pressure, a suitably ...
Cox, Dale W., Jr., Marble, Frank E.
core   +1 more source

Transient combustion responses of homogeneous propellants to acoustic oscillations in axisymmetric rocket motors [PDF]

open access: yes, 1997
A numerical analysis of unsteady motions in solid rocket motors has been conducted. The formulation considers a 2-D axisymmetric combustion chamber and a choke nozzle, and treats the complete conservation equations accounting for turbulence closure ...
Culick, F. E. C., Roh, T. S.
core   +1 more source

Effects of LOX Particle Diameter on Combustion Characteristics of a Gas-Liquid Pintle Rocket Engine

open access: yesInternational Journal of Aerospace Engineering, 2020
LOX/GCH4 pintle injector is suitable for variable-thrust liquid rocket engines. In order to provide a reference for the later design and experiments, three-dimensional numerical simulations with the Euler-Lagrange method were performed to study the ...
Xuan Jin   +3 more
doaj   +1 more source

Oscillating flames in micro-combustion

open access: yesCombustion and Flame, 2016
New experimental results that demonstrate the existence of oscillating flames in micro-combustion are reported here. The results showed the presence of oscillating regimes with different behaviors in the transition between the stable flames, FREI (Flame with Repetitive Extinction and Ignition), and weak flames.
Di Stazio, Annalisa   +3 more
openaire   +3 more sources

Modeling for Active Control of Combustion and Thermally Driven Oscillations [PDF]

open access: yes, 1991
Organized oscillations excited and sustained by high densities of energy release in combustion chambers have long caused serious problems in development of propulsion systems.
Culick, F. E. C.   +3 more
core   +1 more source

Physics of puffing and microexplosion of emulsion fuel droplets [PDF]

open access: yes, 2014
The physics of water-in-oil emulsion droplet microexplosion/puffing has been investigated using high-fidelity interface-capturing simulation. Varying the dispersed-phase (water) sub-droplet size/location and the initiation location of explosive boiling ...
A. Megaritis   +6 more
core   +1 more source

Energy attenuation behavior on propane–air premixed combustion on account of nonmetallic spherical spacers in confined space with two perforated plates

open access: yesEnergy Science & Engineering, 2023
Energy attenuation behavior on propane premixed combustion on account of nonmetallic spherical spacers (NSSs) was investigated in a constant volume combustion bomb with two accelerative perforated plates.
Huwei Dai   +4 more
doaj   +1 more source

Large-Scale Vortical Motion and Pressure Fluctuation in Noise-Controlled, Swirl-Stabilized Combustor

open access: yesJournal of Thermal Science and Technology, 2009
To clarify the mechanisms of combustion oscillation, combustion noise and their suppression by secondary fuel injection, simultaneous measurements of stereoscopic particle image velocimetry (SPIV) and pressure fluctuation in combustion chamber were ...
Masayasu SHIMURA   +3 more
doaj   +1 more source

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