同轴圆柱间的Taylor-Couette流动广泛存在于电机、旋转叶片耦合器、离合器等装置中，提升该流动的传热能力，是改善此类设备性能的关键。本项目研究壁面几何结构对Taylor-Couette流场转捩及传热过程的影响机制。利用PIV结合折射率匹配法完成不同模型内的流场测试工作，对数据处理所得结果，应用本征正交分解方法分析不同模态的流场信息，确定各个流态转捩过程的临界点，探索壁面几何参数与临界雷诺数之间的关系；采用数值模拟的方法获得环形间隙内温度场分布，分析流场和温度场之间的关联性，阐明温度梯度和壁面结构对流场转捩过程的影响机制；根据实验数据计算不同工况下环形间隙内的热流通量、对流换热系数以及Nu数，以此为基础建立传热准则关联式，揭示壁面结构对传热过程的影响规律。项目研究能够为复杂条件下Taylor-Couette流动的研究提供新思路，所取得的成果也可以为相关装置的传热优化设计提供依据。

Taylor-Couette flow exists in co-axial rotating electrical equipment such as electric motor， clutch and rotary blade coupling in vehical.The key to increase the performance of these machines is to improving the heat transfer ability in this flow.The influence mechanism of wall geometry structure on the flow transition and heat transfer process is studied by experimental and numerical calculation method.To study the transition process between different flow regime and the relationship between wall geometric parameters and critical Reynolds number, Particle Image Velocimetry combines with index matching method is applied in the flow measurement, and the date is analyzed by Proper Orthogonal Decomposition method .The effect of temperature gradient and wall geometry on the flow transition process is studied by analyzed the flow and temperature distribution, which is obtained by numerical calculation method. In this study, the heat transfer experimental setup is also designed to study the wall geometry effect on the heat transfer process, and the heat flux in the annular gap, the heat transfer coefficient and the Nusselt number is calculated by the experimental data, the empirical formulas about heat transfer is obtained based on these data. The study in this project can provides a new method to the study of the Taylor-Couette flow under complex conditions, and the result achieves in the study can provide basis for the designing of the relevant machinery.