Thermoacoustics, Prime over, Instability, Nonlinear acoustics, Stationary waves, Onset, Saturation
Complete title
Experimental study and modeling of the onset and saturation of the acoustic wave in thermoacoustic prime mover
Resume
Thermoacoustic prime mover is a system of acoustic energy conversion into thermical energy. In the simplest version, it is constitued of stack’s extremity). In this system, a big temperature difference creates an interaction between acoustic wave and the thermical flux. This interaction induces an acoustic wave with high level in the waveguide. Thermoacoustic prime mover has a lot of advantages which can have industrial application soon. The project’s objective is to make an experimental study and a comparaison with the numerical model of the dynamic trigger and saturation of the thermoacoustic’s instability in very simple systeme : the ”quarter-wave” thermoacoustic’s generator.
Thermoacoustic prime mover is a system of acoustic energy conversion into thermical energy. In the simplest version, it is constitued of waveguide in which a stack of solid plates is inserted and an important difference of temperatue is applicated on this stack (heating a stack’s extremity). In this system, a big temperature difference creates an interaction between acoustic wave and the thermical flux. This interaction induces an acoustic wave with high level in the waveguide. Thermoacoustic prime mover has a lot of advantages which can have industrial application soon. The project’s objective is to make an experimental study and a comparaison with the numerical model of the dynamic trigger and saturation of the thermoacoustic’s instability in very simple systeme : the ”quarter-wave” thermoacoustic’s generator. [PDF]
Context
Scientific project of my 1st year of M.sc Degree in Acoustics and Mechanis at University of Le Mans
Supervision
Guillaume Penelet, Assistant Professor at University of Le Mans
