| Combustion Instabilities In Solid Propellant Rocket Motors |
JAN 2004 |
179 pages |
| Authors:
F. E. Culick; CALIFORNIA INST OF TECH PASADENA
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 | These notes for two lectures are intended to provide the basic ideas for understanding and interpreting coherent oscillations is solid propellant rocket motors. The discussion is concerned mainly with the dynamics of a system consisting of two coupled sub-systems: the chamber containing combustion products; and the combustion processes con ned almost entirely to a thin region adjacent to the surface of burning propellant. Coupling between the sub-systems is always present ... |
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| Planar Laser Induced Fluorescence System for High Pressure Combustion Facility |
31 MAY 1999 |
23 pages |
| Authors:
F. E. Culick; CALIFORNIA INST OF TECH PASADENA
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| This report covers the expenditure of DURIP grant for the design fabrication and assembly of a state-of-the-art planar laser-induced fluorescent (PLIF) instrumentation system. The equipment will be used to acquire time- accurate and spatially resolved species concentrations of OH and NO in a combustor test rig operating at flow rates as high as 1 kgm/s and up to four atmospheres. Successful initial results have been ... |
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| The Influence of Comubstion Noise on Acoustic Instabilities |
06 NOV 1997 |
30 pages |
| Authors:
V. S. Burnely; F. E. Culick; AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE WEST
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| Although flows in combustors contain considerable noise, arising from several kinds of sources, there is a sound basis for treating organized oscillations as distinct motions. That has been an essential assumption incorporated in virtually all treatments of combustion instabilities. However, certain characteristics of the organized or deterministic motions seem to have the nature of stochastic processes. For example, the amplitudes in limit cycles always exhibit a random character and even ... |
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| Modeling and Active Control of Nonlinear Unsteady Motions in Combustion Chambers |
28 JUN 96 |
37 pages |
| Authors:
F. E. Culick; CALIFORNIA INST OF TECH PASADENA
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| This program is devoted to understanding fundamental process in actual combustion chambers through coordination of theory, analysis and experiment. Theoretical work has been carried out in the framework of an approach based on a form of Galerkin's method. General unsteady motions are synthesized of modes. Spatial averaging produces a representation of the unsteady behavior in a combustion chamber as the time evolution of a system of coupled nonlinear oscillators, one ... |
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| Electron-Cyclotron-Resonance Plasma Thruster Research |
31 AUG 91 |
18 pages |
| Authors:
F. E. Culick; Joel C. Sercel; CALIFORNIA INST OF TECH PASADENA GUGGENHEIM JET PROPULSION CENTER
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| This report summarizes the results of a three year program devoted to theoretical and experimental research on plasma acceleration by Electron- Cyclotron-Resonance (ECR). Theoretical work in the first year of this effort centered on simple analytical treatment of many of the phenomena which have a role in ECR plasma acceleration. These analytical studies pointed out which phenomena are sufficiently important to be incorporated in the more rigorous theoretical studies of ... |
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| Active Control of Pressure Oscillations in Liquid-Fueled Propulsion Systems |
89 |
4 pages |
| Authors:
F. E. Culick; CALIFORNIA INST OF TECH PASADENA
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| This program has been devoted to analytical work motivated and guided by experimental results obtained largely by other organizations. The three primary research objectives are representation of linear and nonlinear combustion instabilities, encompassing all contributions to energy gains and losses, including noise sources, in a form suitable for application of active control; modeling unsteady combustion processes and their coupling to unsteady flow fields; and application of control theory, analysis, and ... |
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| Mechanisms of Exciting Pressure Oscillations in Ramjet Engines |
18 SEP 85 |
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| Authors:
F. E. Culick; Frank E. Marble; E. E. Zukoski; CALIFORNIA INST OF TECH PASADENA
|
 | Analytical work devoted to the global acoustics has been concerned with both linear and nonlinear behavior. Good agreement has been found between calculations of the mode shapes and data taken at the Naval Weapons Center. Numerical calculations are in progress to provide representation of the nonlinear unsteady behavior of a normal shock wave in an inlet diffuser, including viscous effects. Experimental investigations of combustion have been carried out with pressure, ... |
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| Mechanisms of Exciting Pressure Oscillations in Ramjet Engines |
14 JUN 85 |
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| Authors:
F. E. Culick; F. E. Marble; E. E. Zukoski; CALIFORNIA INST OF TECH PASADENA
|
| Analytical work devoted to the global acoustics has been concerned with both linear and nonlinear behavior. Good agreement has been found between calculations of the mode shapes and data taken at the Naval Weapons Center. Numerical calculations are in progress to provide representation of the nonlinear unsteady behavior of a normal shock wave in an inlet diffuser, including viscous effects. Experimental investigations of combustion have been carried out with pressure, ... |
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