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本文采用实验与理论相结合的办法对同心圆柱套筒实验装置内的流场进行了分析研究。数值模拟采用柱坐标系下三维ｋε紊流模型和 Ｂｏｕｓｓｉｎｅｓｑ 假设，使模型充分考虑了流动的曲率效应。从计算结果与多普勒激光测速仪的测量资料的分析比较看出，计算结果是可靠的。这一研究对于探索紊动等水动力学特性对水体复氧及有机物降解规律的影响奠定了基础。
In this paper, the experimental and theoretical methods are used to analyze the flow field in the concentric cylindrical sleeve experimental device. The three-dimensional k-ε turbulence model and the Boussinesq assumption in the cylindrical coordinate system are adopted in the numerical simulation. The model fully considers the curvature effect of the flow. From the calculation results and Doppler laser velocimeter measurement data analysis shows that the calculation results are reliable. This study lays the foundation for exploring the influence of hydrodynamic characteristics such as turbulence on the reoxygenation and degradation of organic matter in water bodies.