Active Control of Thermoacoustic Instability Revisited 
Active Control of Thermoacoustic Instability Revisited
by IIT Madras
Video Lecture 36 of 41
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Date Added: March 5, 2015

Lecture Description

This video lecture, part of the series Acoustic Instabilities in Aerospace Propulsion by Prof. , does not currently have a detailed description and video lecture title. If you have watched this lecture and know what it is about, particularly what Aerospace Engineering topics are discussed, please help us by commenting on this video with your suggested description and title. Many thanks from,

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Course Index

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

Course Description

Topics outline:
- Introduction to acoustics and combustion driven oscillations.
- Derivation of the wave equation.
- Traveling wave solutions.
- Standing wave solutions.
- Effect of inhomogeneous media on sound propagation.
- Multi-dimensional acoustics.
- Fundamentals of combustion instability.
- Basic principles.
- Rayleigh criteria.
- Instability in solid and liquid rockets, ramjets, gas turbines.
- Pulse combustors.
- Passive and active control of combustion instability.
Theoretical analysis of combustion instability.
- Modal stablility analysis.
- Nonmodal stability analysis.

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