Acoustic Instabilities in Aerospace Propulsion

IIT Madras Course , Prof. R.I. Sujith

Lecture 1: Introduction to Thermoacoustic Instabilities

Download:    MP4,FLV & 3GP
Lecture Details :

Acoustic Instabilities in Aerospace Propulsion by Prof. R.I. Sujith, Department of Aerospace Engineering, IIT Madras. For more details on NPTEL visit

Course Description :

Introduction to acoustics and combustion driven oscillations - Derivation of the wave equation - Traveling wave solutions - Acoustic energy corollary - Impedance & admittance - Standing wave solutions - Reflection and transmission - Impedance tube technique.

Effect of area and temperature variation on wave propagation - Wave equation in cylindrical co-ordinates and its applications - Basic principles of combustion driven oscillations - Rayleigh criteria - Mechanisms for instability in solid and liquid rockets, ramjets, gas turbines - Pulse combustors and their analysis using Galerkin technique - Modal analysis - Nonmodal stability analysis - Passive and active control of combustion instability.

Other Resources

IITMadras delivers the above video lessons under NPTEL program, there are more than 6000+ nptel video lectures by other IIT's as well.

COURSE Reviews

5 Stars 3
4 Stars 2
3 Stars 1
2 Stars 0%
1 Stars 1
3.9 Overall Ratings