Study on Hydrogenerator´s Temperature Field through Coupled Field Computation Method

This paper presents a method to analyze the ventilation and heat rejection system of hydrogenerator. Firstly, coupled fields are identified. Then, a geometrical model through parametric analysis is established. Finally, the meshed model is input into FLUENT software to carry out a three dimensional numerical calculation, through which a temperature distribution can be obtained. In comparison with experiential calculations, the CFD result is proved feasible and effective. At last, through analyzing sensitive parameters and by adopting ISIGHT software the stator´s structure can be improved effectively by using optimized parameters. In addition, this paper will also benefit those who are in pursuit of designing complex product.