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NPTEL

Acoustic Instabilities in Aerospace Propulsion

NPTEL via YouTube

Overview

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This advanced course examines thermoacoustic instabilities through acoustic theory, combustion interactions, modal and nonlinear analysis, hydrodynamic effects, and active control. It includes models such as the Rijke tube and studies flame and solid-propellant responses to acoustic oscillations.

Syllabus

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.

Taught by

aerospace engineering

Reviews

5.0 rating, based on 1 Class Central review

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  • This course was really cool to dive into!, I Learned so much stuff about rocket engines, gas turbines, thermoacoustic instabilities. It would be helpful for my Aerospace & rocket engines company.

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