Acoustic Instabilities in Aerospace Propulsion

Sujith, R. I.

Modules / Lectures : Introduction to Thermoacoustic Instabilities ; Introduction to Acoustics, Conservation Equations ; Wave Equation and its Solution in Time Domain ; Harmonic Waves, Acoustic Energy Corollory ; Standing Waves ; Power Flow and Acoustic Admittance ; Impedance Tube Technique ; Admittance and Standing Waves ; Admittance,Stability and Attenuation ; Sound Propagation Through Inhomogeneous Media ; Multidimensional Acoustic Fields ; Interaction between Sound and Combustion ; Reference Books Derivation of Rayleigh Criteria ; Effect of Heat release on the Acoustic Field ; Modal Analysis of Thermoacoustic Instability ; Active Control of Thermoacoustic Instability ; Toy model for a Rijke tube in Time Domain ; Galerkin Technique for Thermoacoustics ; Evolution Equation for Thermoacoustics ; Non linear analysis of Thermoacoustic Instability ; Non-normality, Transient Growth and Triggering Instability ; Bifurcations ; Premixed Flame Acoustic Interaction ; Combustion instability due to Equivalence Ratio Fluctuation ; Role of Hydrodynamic Instabilities ; Active Control of Thermoacoustic Instability Revisited ; Solid Propellant Combustion Instability ; Response of a Diffusion Flame to Acoustic Oscillations ;

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National Programme on Technology Enhanced Learning (NPTEL)

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