Experimental investigation on the dynamic character of thermoacoustic engine and parameters of regenerator

As a result of temperature difference and self-organization of regenerator, some oscillatory fluid is filtered whose oscillatory frequency is far from thermoacoustic engine intrinsic frequency in regenerator. And someone is maintained which is close to the engine intrinsic frequency, thus part energy is concentrated on the band of close to the engine intrinsic frequency. Effect of heat conduction and fluid viscosity between the oscillatory fluid and solid interface of regenerator, magnification and attenuation of amplitude of oscillatory fluid simultaneously take place. The dynamic character is achieved with the actions of heat conduction, viscosity and oscillation between the oscillatory fluid and the solid interface, so it is significance to find out the transforming rules of the three objects.