Course Objectives

  • To introduce the formal basis for the study of acoustic wave motion in fluids.
  • To impart an understanding of the basic physics of acoustic waves in 1- and 3- dimensions.
  • To introduce computational methods for acoustics.

Course Contents

The course starts with some topics on Acoustics:

  • Basic Concepts.
  • Fundamental Quantities.
  • Signal Analysis.

The contents of the advanced part are: 
  • Propagation of longitudinal acoustic disturbances in the form of plane waves.
  • Concepts: sound speed, frequency, wavelength, wavenumber and characteristic acoustic impedance.
  • Thermodynamics of acoustic compressions and isentropic assumption.
  • Single frequency fluctuations and the Helmholtz equation.
  • Acoustic wave propagation in 3 dimensions, including spherical waves and point sources.
  • The behavior of sound in enclosures including analytical descriptions at low and high frequencies.
  • Sound radiation from surface vibration.
  • Introduction to FE methods for acoustics

Course Work

Lectures:

  • Mondays at 6:00 pm (mostly) – Virtual Reality Lab

Exercises [5 marks]
  • At the end of each lecture
Lab work (Groups) – all labs [10 marks]
  • Sound Power Measurement
  • FEM problem using MATLAB
  • Same FEM problem using COMSOL
Research work (Groups) – 1 or 2 [10 marks]
  • Use of absorbing materials inside mufflers
  • Equivalent model for Diesel Particulate Filters
Final Examination [70 marks]

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