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中文摘要：
有圆形的嘴和挤的嘴的自由气流的湍流地比最小的骚乱 timescale.Wavelet 分析被采用执行即时骚乱波动 的多尺度的分解高与分辨率用热电线风力测定被测量速度信号，并且在规模上的狂暴的多尺度的旋涡结构的精力分发用小浪系数被学习。圆形的喷气和各种各样的挤的喷气的多尺度的旋涡结构的调查从轴在空格揭示这些挤的喷气的精力的运输到喷气的方面，作为与 circularjet.Furthermore 相比，在近的领域里的楔齿的旋涡结构不仅被砸碎，而且因为楔的存在，象旋涡结构联合和乘火车那样的相互作用与喷气的开发一起发生在不同纵、正常的地点。
英文摘要：
Turbulent flow field of the free jet with circular nozzle and wedged nozzles is measured using hot wire anemometry with resolution higher than the smallest turbulence time scale. Wavelet analysis is employed to perform multi-scale decomposition of instantaneous turbulence fluctuating velocity signals, and the energy distribution of the turbulent multi-scale eddy structures over scales is studied using wavelet coefficients. Investigation of the multi-scale eddy structures of circular jet and various wedged jets reveals the transport of the energy of these wedged jets in the space from the axis to the side of the jet, as compared with the circular jet. Furthermore, not only the eddy structures at the wedge tines in the near field are crashed, but also the interactions such as eddy structure union and entrainment take place at different longitudinal and normal locations along with the development of the jets because of the existence of wedges.
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