热声谐振管压比影响因素的数值模拟

Numerical simulation and analysis on pressure ratio Parameters of thermoacoustic resonator

通过比较等直径管,分析了锥度管对压比的影响.采用Fluent模拟计算了管型对压比的影响,结果表明渐缩型锥管能强化声振动,可提高谐振管的压比.并研究了工作压力对热声异型谐振管压比的影响,结果表明高的工作压力有利于提高热声谐振管的压比.

Compared with the straight resonator,the influence of taper on the pressure ratio was discussed.The influence of shapes on the pressure ratio was studied with Fluent 6.2,the results indicate that tapered type could strengthen oscillation and enhance the pressure ratio of the resonator.At the same time,the pressure distribution along the different structural tubes under different operating pressure is calculated,the results show that the higher operating pressure is helpful to pressure ratio of the resonator.