Syllabus | Acoustic Instabilities in Aerospace Propulsion

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COURSE 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.

REFERENCES

L. E. Kinsler, A. R. Frey, A. B. Coppens and J. V. Sanders (2000) Fundamentals of Acoustics, 4th Edition, Wiley.

ADDITIONAL READINGS

1.CULICK, F. E. C. (2006) Unsteady motions in combustion chambers for propulsion systems. RTO AGARDograph AG-AVT-039.
2.Morse,P. M., and K. U. Ingard (1965) Theoretical Acoustics, New York, McGraw-Hill.

 

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