%0 Journal Article %A Chen, Shengtao %A Hu, Dapeng %A Chen, Zuzhi %A Dai, Yuqiang %A Liu, Runjie %A Zhu, Che %D 2007 %I Begell House %N 2 %P 115-128 %R 10.1615/InterJFluidMechRes.v34.i2.20 %T Theoretical and Numerical Investigation of Oscillation and Switch in a Sonic Oscillator %U https://www.dl.begellhouse.com/journals/71cb29ca5b40f8f8,51cd07171f116855,330a115b0842fc6e.html %V 34 %X A periodic and oscillatory flow state in a sonic oscillator is studied in detail. In this paper, the physical model of a sonic oscillator is set up to demonstrate the flow state. Detailed theoretical analysis is made. Numerical simulation of the switch of the jet flow in a sonic oscillator is also done. Emphasis is placed on the factors affecting the switch of the jet flow. Both the momentum supplement to the low-pressure vortex area and the pressure wave in the controlling pipe are contributing. %8 2007-04-23