抄録
Change in pressure signals in single, open ends and closed ends connected types of thermoacousitc sound wave generators are discussed. Simultaneous measurements of pressure, velocity and temperature are performed. As a result, pressure signals in the open-ends connected one are different from the other's. They oscillate at fundamental frequency of f, which is based on resonance tube length and sound speed in the working fluid, near the closed ends, and oscillate at 2f near the connected region. And its amplitude is larger than those of the others. Simulation of pressure signals are also performed.
