ACOUSTIC CAVITIES DESIGN PROCEDURES | Zendy

A. Santana | Zendy; Marinete Santana da Silva | Zendy; Pedro Teixeira Lacava | Zendy; Luiz Carlos Sandoval Góes | Zendy

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ACOUSTIC CAVITIES DESIGN PROCEDURES

Author(s) -

A. Santana,

Marinete Santana da Silva,

Pedro Teixeira Lacava,

Luiz Carlos Sandoval Góes

Publication year - 2007

Publication title -

revista de engenharia térmica

Language(s) - English

Resource type - Journals

ISSN - 1676-1790

DOI - 10.5380/reterm.v6i2.61687

Subject(s) - baffle , propellant , rocket (weapon) , instability , combustion , aerospace engineering , combustion chamber , rocket engine , liquid propellant rocket , mechanical engineering , materials science , acoustics , engineering , mechanics , physics , chemistry , organic chemistry

Combustion instability is recogniz ed as one of the major problems frequently faced by engineers during the development of either liquid or solid propellant rocket engines. The performance of the engine can be highly affected by these high frequencies instabilities, possibly leading the rocket to an explosion. The main goal while studying combustion chambers instability, either by means of baffles or acoustic absorbers, is to achieve the stability needed using the simplest possible manner. This paper has the purpose of studying combustion chambers instabilities, as well as the design of acoustic absorbers capable of reducing their eigenfrequencies. Damping systems act on the chamber eigenfrequency, which has to be, therefore, previously known

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