Title :
Numerical modelling of the coolant flow in a high-speed electrical machine
Author :
Kolondzovski, Zlatko
Author_Institution :
Dept. of Electr. Eng., Helsinki Univ. of Technol., Helsinki
Abstract :
In the paper, a numerical modelling of the air-flow in a high-speed permanent-magnet electrical machine is presented. The method couples computational fluid dynamics and heat-transfer equations in order to estimate the turbulent and thermal properties of the flow. The machine under consideration is a high-speed PM motor that is designed for speed n = 31500 rpm and power P = 130 kW. The geometry of the fluid domain in this method is considered to be 2D axi-symmetric. At the end, results for the turbulent properties as well as for the temperature rises of the cooling fluid are presented.
Keywords :
computational fluid dynamics; flow simulation; heat transfer; permanent magnet machines; turbulence; air-flow numerical modelling; computational fluid dynamics; coolant flow numerical modelling; cooling fluid; flow thermal properties; heat-transfer equations; high-speed electrical machine; high-speed permanent-magnet electrical machine; turbulent properties; Computational fluid dynamics; Coolants; Cooling; Couplings; Equations; Induction machines; Magnets; Numerical models; Stators; Temperature distribution;
Conference_Titel :
Electrical Machines, 2008. ICEM 2008. 18th International Conference on
Conference_Location :
Vilamoura
Print_ISBN :
978-1-4244-1735-3
Electronic_ISBN :
978-1-4244-1736-0
DOI :
10.1109/ICELMACH.2008.4799884
