After successful completion of the course, students are able to understand the physical mechanism of flow induced sound and have mathematical models at hand for analytical estimations as well as for numerical simulation.

There are many application of flow induced sound in daily life: aircraft noise (jet engine), traffic noise (flow around cars, exhaust noise), musical instruments (wind instrument, organ pipe), etc. The course will concentrate on the following topics:

• Basic equations of flow dynamics and acoustics
• Aeroacoustic analogies: Lighthill-, Curle- sowie Ffowcs Williams & Hawkings Analogie, acoustic perturbation equations
• Sound propagation computation applying Green¿s functions
• Applications: edge tone, car side mirror, airfoil, rotor blades, human phonation

The course will be interactive and the knowledge will be communicated by multimedia-based presentation using practical examples. Thereby, a high priority is placed on the physical understanding.

Follow up course: 325.099 VO+UE Finite Element Methods for Multi-Physics II

Work out questions / exercises and perform an oral exam

Lecture notes can be downloaded.

• M. Kaltenbacher: Numerical Simulation of Mechatronic Sensors and Actuators, Springer 2015, 3nd edition.
  
  
• M. S. Howe: Theory of Vortex Sound. Cambridge Texts in Applied Mathematics, 2003

Basic knowledge in flow dynamics and acoustics