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

fYear

2008

fDate

6-9 Sept. 2008

Firstpage

1

Lastpage

5

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICELMACH.2008.4799884

Filename

4799884