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讨论了热声发动机在驻波和行波两种不同工作状态下， 其声功率产生的临界温度梯度与流道尺寸和工作介质的关系， 提出了基于行波工作模式的热声发动机新方案。
The relationship between the critical temperature gradient of acoustic power and the flow channel size and working medium under two different operating states of standing wave and traveling wave are discussed. A new scheme of thermoacoustic engine based on traveling wave mode is proposed.