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Based on the two-layer model suggested by Pekeris, a developed theory of the dispersionof the acoustic-gravity wave dealing with a constant wind speed in each layer is discussed in thispaper. From the basic wave equations of the acoustic-gravity wave,the confluent hypergeometic equa-tion for the two-layer model with a constant wind speed is derived,and its general solutions aregiven.We obtain the dispersive equation by utilizing the continuous condition of the vertical veloc-ity of air particle motion and the sound pressure on the boundary between the two layers,aswell as the stiffness condition on the ground.The analytical representations of the phase andgroup velocities are also given. The methods of the computation are given in detail.The results of numerical calculation onthe computer show that the wind speeds have a great effect on the propagation of the acoustic-gravity wave.The phase and group velocities depend on the wind speeds in two layer.Theexcited cutoff frequency of the acoustic-gravity wa 相似文献
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