High-amplitude oscillatory gas flow in interaction with solid boundaries (06668)

Project nummer: 06668

Omschrijving van het onderzoek

This 2PhD project is about the application of thermoacoustics as standing wave or traveling wave heat pumps for the industry. In thermoacoustic heat pumps the interaction between a sound wave and a solid wall is a key aspect that determines the coefficient of performance (COP) of such machines. In the current research, the fluid- and thermodynamic interaction between an oscillating flow and various types of solid obstructions or regenerators are studied mathematically and experimentally.
A model is derived to study the influence of steady streaming in the oscillating flow field and to investigate the effect of high amplitudes. With an acoustic windtunnel set-up and Particle Image Velocimetry (PIV) the acoustic flow field is studied in detail. Besides, the global pressure distribution and temperature field are investigated. Furthermore, numerical computations of the oscillatory flow field are made. These, will be compared with the mathematical work and with the experiments.
Finally, the mathematical model as well as the experimental techniques will be used to study the influence of the acoustic streaming in a realistic heat pump. With the results of this research the performance of these thermoacoustic heat pumps can be improved.

Gebruikers

Seven companies are involved in this project.

Projectleider

Dr.ir. J.C.H. Zeegers
Technische Universiteit Eindhoven
Technische Natuurkunde
Groep Lage temperaturen
Postbus 513
5600 MB Eindhoven

Status van het project

Gestart:	01-05-2005
Beëindigd:	01-08-2009

Trefwoorden

Energieonderzoek, geluid, numerieke modellering, stroming, stromingsonderzoek, thermo-akoestiek, turbulentie, wervelafschudding

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