Pressure loss measurement in rotor-stator gap of radial flux electrical machines

Author

Chong, Y.C. ; Staton, D.A. ; Mueller, M.A. ; Chick, J.

Author_Institution

Motor Design Ltd., Ellesmere, UK

fYear

2014

fDate

2-5 Sept. 2014

Firstpage

2172

Lastpage

2178

Abstract

The present paper investigates the effects of rotation on flow resistance of the flow passing through the rotor-stator gap of radial flux electrical machine. Rotational pressure loss was measured and compared with the results predicted using computational fluid dynamic (CFD) methods. By using dimensional analysis, correlation for the shock loss coefficient is proposed. It provides a significant contribution to the field of thermal modelling of electrical machines, such as thermofluid modelling using Motor-CAD.

Keywords

computational fluid dynamics; electric machines; loss measurement; machine theory; pressure measurement; rotors; stators; CFD method; Motor-CAD modelling; computational fluid dynamic method; flow resistance rotation effect; radial flux electrical machine; rotational pressure loss measurement; rotor-stator gap; shock loss coefficient; thermal modelling; thermofluid modelling; Computational fluid dynamics; Electric shock; Friction; Lamination; Rotors; Stators; Correlation coefficient; cooling; electric machines; fans; fluid dynamics; friction; pressure measurement; rotating machines; rotors; thermal analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2014 International Conference on

Conference_Location

Berlin

Type

conf

DOI

10.1109/ICELMACH.2014.6960485

Filename

6960485