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Numerical analysis of flow field inside a cooling duct of a marine generator rotor

Yao Shouguang,Liu Fei,Xiong Zhengqiang(School of Energy and Power Engineering,Jiangsu University of Science and Technology,Zhenjiang Jiangsu 212003,China)  
The paper focuses on the numerical analysis of the gas flow area inside a marine generator rotor cooling air duct.Geometric and mathematic model of solution domain is built by determining solution domain of the three-dimensional flow field.The boundary conditions are given in the solution domain and calculation and analysis are done by finite volume method,and then some useful conclusions are drawn.These conclusions lay a foundation for the analysis of flow and temperature field inside a marine generator rotor,and provides a theoretical basis of optimization of ventilation structure for motor designers.
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