Zobrazeno 1 - 10
of 21
pro vyhledávání: '"James C. Sisco"'
Publikováno v:
Journal of Propulsion and Power. 28:876-887
An experimental study of spontaneous longitudinal high-frequency combustion instabilities in a high-pressure model rocket combustor is described. The experiment is designed to efficiently obtain stability data under variable resonance conditions in a
Publikováno v:
Journal of Sound and Vibration. 330:61-74
The coupling between the fluid dynamics, heat addition, and the acoustics of a combustor system determine whether it is prone toward combustion instability. This paper presents results from a benchmark study of the eigenmodes in an unstable experimen
Publikováno v:
Combustion Science and Technology. 182:739-776
The development of a Linearized Euler Equation (LEE) model for analyzing high frequency longitudinal combustion instability is described. The model includes mean flow effects and is generalized for multiple domains as well as natural boundary conditi
Publikováno v:
Journal of Propulsion and Power. 23:1102-1112
A single injector element liquid rocket combustion experiment was designed and conducted to investigate the combustion dynamics of a gas-centered, liquid-swirled coaxial injector element. The oxidizer was a mixture of superheated water and oxygen, an
Publikováno v:
Journal of Propulsion and Power. 21:942-953
Thermal decomposition is an important process in propulsion systems that use hydrogen peroxide (HP). Neither a combined vaporization-decomposition model nor a fundamental understanding of the way liquid HP vaporizes and decomposes in these rocket app
Publikováno v:
Journal of Propulsion and Power. 21:450-459
In staged-bipropellant rocket combustors that use decomposed hydrogen peroxide as the oxidizer, a liquid fuel is injected into the hot decomposition products comprising oxygen and water vapor. For a well-designed combustor, the oxidizer is at a suffi
Development of a Combustion Dynamic Stability Analysis Tool Using Commercial Finite Element Software
Publikováno v:
50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition.
Progress toward the development of an improved stability analysis tool, anchored by a combustion response model incorporating detailed flame-vortex dynamics, is presented through the modeling of a premixed, 2-D, rearward-facing step combustor. A glob
Publikováno v:
46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
The feasibility of an improved stability analysis framework, anchored by a combustion response model incorporating fundamental flame-vortex dynamics, is demostrated through the modeling of a premixed, 2-D, backward facing step combustor. A 1-D global
Publikováno v:
44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
An experiment has been developed to study combustion response over a wide range of acoustic resonance conditions. The developed experiment can be tested at fixed geometry or as a continuously variable resonance chamber (CVRC). The continuously variab
Publikováno v:
44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
Experimental testing of trans verse combustion instabilities from a gas -centered swirl coaxial injector are presented in this paper . Results show that the same time lag determined from longitudinal instability experiments can be used to design a n