Acoustic Instabilities in Aerospace Propulsion

Explore the complex world of acoustic instabilities in aerospace propulsion through this comprehensive course. Delve into thermoacoustic instabilities, wave equations, and acoustic energy principles. Examine standing waves, impedance tube techniques, and sound propagation through inhomogeneous media. Investigate multidimensional acoustic fields and the interaction between sound and combustion. Learn about modal analysis, active control methods, and non-linear analysis of thermoacoustic instability. Study non-normality, transient growth, and triggering instability concepts. Explore bifurcations, premixed flame acoustic interactions, and combustion instability due to equivalence ratio fluctuations. Investigate the role of hydrodynamic instabilities and solid propellant combustion instability. Conclude with an in-depth look at the response of diffusion flames to acoustic oscillations, providing a thorough understanding of acoustic phenomena in aerospace propulsion systems.

Mod-01 Lec-01 Lecture 1 : Introduction to Thermoacoustic Instabilities.
Mod-01 Lec-02 Lecture 2 : Part I : Introduction to Acoustics Part II : Conservation Equations.
Mod-01 Lec-03 Lecture 3 : Wave Equation and its Solution in Time Domain.
Mod-01 Lec-04 Lecture 4 : Part I : Harmonic Waves Part II : Acoustic Energy Corollory.
Mod-01 Lec-05 Lecture 5 : Standing Waves.
Mod-01 Lec-06 Lecture 6 : Standing Waves -- 2.
Mod-01 Lec-07 Lecture 7 : Power Flow and Acoustic Admittance.
Mod-01 Lec-08 Lecture 8 : Impedance Tube Technique.
Mod-01 Lec-09 Lecture 9 : Admittance and Standing Waves.
Mod-01 Lec-10 Lecture 10 : Admittance,Stability and Attenuation.
Mod-01 Lec-11 Lecture 11 : Attenuation : Continued Sound Propagation Through Inhomogeneous Media - 1.
Mod-01 Lec-12 Lecture 12 : Sound Propagation Through Inhomogeneous Media - 2.
Mod-01 Lec-13 Lecture 13 : Sound Propagation Through Inhomogeneous Media - 3.
Mod-01 Lec-14 Lecture 14 : Multidimensional Acoustic Fields - 1.
Mod-01 Lec-15 Lecture 15 : Multidimensional Acoustic Fields - 2.
Mod-01 Lec-16 Lecture 16 : Interaction between Sound and Combustion.
Mod-01 Lec-17 Lecture 17 : Reference Books Derivation of Rayleigh Criteria.
Mod-01 Lec-18 Lecture 18 : Effect of Heat release on the Acoustic Field.
Mod-01 Lec-19 Lecture 19 : Modal Analysis of Thermoacoustic Instability - 1.
Mod-01 Lec-20 Lecture 20 : Modal Analysis of Thermoacoustic Instability - 2.
Mod-01 Lec-21 Lecture 21 : Active Control of Thermoacoustic Instability.
Mod-01 Lec-22 Lecture 22 : Toy model for a Rijke tube in Time Domain.
Mod-01 Lec-23 Lecture 23 : Galerkin Technique for Thermoacoustics.
Mod-01 Lec-24 Lecture 24 : Evolution Equation for Thermoacoustics.
Mod-01 Lec-25 Lecture 25 : Non linear analysis of Thermoacoustic Instability.
Mod-01 Lec-26 Lecture 26 : Non-normality, Transient Growth and Triggering Instability - 1.
Mod-01 Lec-27 Lecture 27 : Non-normality, Transient Growth and Triggering Instability - 2.
Mod-01 Lec-28 Lecture 28 : Non-normality, Transient Growth and Triggering Instability - 3.
Mod-01 Lec-29 Lecture 29 : Bifurcations.
Mod-01 Lec-30 Lecture 30 : Premixed Flame Acoustic Interaction - 1.
Mod-01 Lec-31 Lecture 31 : Premixed Flame Acoustic Interaction - 2.
Mod-01 Lec-32 Lecture 32 : Combustion instability due to Equivalence Ratio Fluctuation.
Mod-01 Lec-33 Lecture 33 : Role of Hydrodynamic Instabilities - 1.
Mod-01 Lec-34 Lecture 34 : Role of Hydrodynamic Instabilities - 2.
Mod-01 Lec-35 Lecture 35 : Role of Hydrodynamic Instabilities - 3.
Mod-01 Lec-36 Lecture 36 : Active Control of Thermoacoustic Instability Revisited.
Mod-01 Lec-37 Lecture 37 : Solid Propellant Combustion Instability - 1.
Mod-01 Lec-38 Lecture 38 : Solid Propellant Combustion Instability - 2.
Mod-01 Lec-39 Lecture 39 : Response of a Diffusion Flame to Acoustic Oscillations -1.
Mod-01 Lec-40 Lecture 40 : Response of a Diffusion Flame to Acoustic Oscillations - 2.
Mod-01 Lec-41 Lecture 41 : Response of a Diffusion Flame to Acoustic Oscillations - 3.