The use of computational fluid dynamics to model the air flow in the end region of a TEFC induction motor

This paper describes how computational fluid dynamics (CFD) can be used to model the ventilation of the end windings in TEFC electric motors. The problems in modelling the complex air flows in the end region of induction motors are described. Suitable approaches to the CFD modelling are then described. The results reveal large variations in the flow patterns and thus identify significant features that affect the thermal behaviour of the machine.