This paper analyses the sound decay in an acoustically treated rectangular space from the view point of wave acoustics. and a new method of calculating complex eigenvalue is given.

本文从波动声学观点出发，分析了矩形水池中声能的衰变，给出了一种解算复本征值的新方法。

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Starting with the operation of probable events, the cascade-coincidence effects with complex decay scheme are investigated in detail.

本文从概率事件运算着手，对复杂级联符合效应进行了研究。

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The large eddy simulation methods can be used to analysis and calculate the decay and transport rules of wake vortex in near ground phases, but it′s too complex and difficult to use.

采用大涡模拟方法可以分析和计算近地阶段尾涡消散和运动规律，但模型繁琐、计算复杂。

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