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本文研究了利用热膜技术量测掺气水流的时均流速和紊动结构有关的技术问题，首次成功地量测了三峡溢流坝模型冲坑中掺气水流的时均流速与脉动流速，并对脉动流速和脉动压强的相关关系作了分析研究，把目前冲坑水流特性的研究推进了一步，对研究冲刷过程和探讨消能机理有重要的理论价值与实际意义
In this paper, the technical problems related to the time-average velocity and the turbulent structure of the aerated flow measured by the hot-film technique are studied. The mean velocity and the pulsatile flow velocity of the aerated flow in the scouring pit of the Three Gorges spillway dam are measured for the first time. The relationship between the pulsating flow velocity and the pulsating pressure is analyzed and studied. The present research on the characteristics of the flow in the pit is advanced by one step. It has important theoretical and practical significance for studying the erosion process and discussing the energy dissipation mechanism