Title :
Comparison of CFD analyzing strategies for hydro generators
Author :
Klomberg, S. ; Farnleitner, E. ; Kastner, G. ; Biro, O.
Author_Institution :
Inst. for Fundamentals & Theor. in Electr. Eng., Graz Univ. of Technol., Graz, Austria
Abstract :
This work presents different methods of analyzing a large hydro generator with computational fluid dynamics, respectively two transient and two steady-state approaches. It also shows the evaluation of a new modelling method compared to the state-of-the-art pole sector models. The focus is on the end winding area and the influence of different ventilation schemes on heat transfer and fluid flow. The results of the simulations are compared to show the advantages of the new reduced model.
Keywords :
computational fluid dynamics; heat transfer; hydroelectric generators; synchronous generators; CFD analyzing strategies; computational fluid dynamics; fluid flow; heat transfer; hydro generators; state-of-the-art pole sector models; ventilation scheme; Bars; Computational modeling; Generators; Heat transfer; Mathematical model; Numerical models; Windings; CFD; Cooling; Heat transfer; Stator bars; Stator windings; Synchronous generators; Thermal analysis;
Conference_Titel :
Electrical Machines (ICEM), 2014 International Conference on
Conference_Location :
Berlin
DOI :
10.1109/ICELMACH.2014.6960457
