vibrating combustion
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Influence of Turbulent Combustion Noise on the Decrement Estimates of Gas Oscillations

2018 ◽  
Vol 140 (10) ◽  
Author(s):  
V. Karmalita
Keyword(s):  
Combustion Chamber ◽  
Linear Model ◽  
Natural Frequency ◽  
Turbulent Combustion ◽  
Logarithmic Decrement ◽  
Combustion Noise ◽  
Vibrating Combustion ◽  
The Impact ◽  
Oscillation Decrement

This paper deals with the autoregression method to determine the logarithmic decrement and natural frequency of gas oscillations in a combustion chamber. The proposed approach to quantify the impact of combustion noise on the estimates of oscillation decrement is based on a linear model of the vibrating combustion phenomena. An application of the proposed approach for afterburner tests is presented as well.

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