Then the turbulence characteristics of the spur dike head and backflow region and the distributions law of flow and turbulence kinetic energy around spur dike are obtained in this paper.

利用三维超声学多普勒流速仪对丁坝坝头附近水流和回流区水流的紊动特性进行了系统的观测和分析，得到了丁坝坝头和回流区的水流特性及紊动动能的分布规律。

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Then the turbulence characteristics of the spur dike head and backflow region and the distributions law of flow and turbulence kinetic energy around spur dike are obtained in this paper.

利用三维超声学多普勒流速仪对丁坝坝头附近水流和回流区水流的紊动特性进行了系统的观测和分析，得到了丁坝坝头和回流区的水流特性及紊动动能的分布规律。

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