Title :
Investigating the air flow rate of self-ventilated traction motors by means of Computational Fluid Dynamics
Author :
Streibl, B. ; Neudorfer, H.
Author_Institution :
Traktionssysteme Austria GmbH, Wiener Neudorf, Austria
Abstract :
A self-ventilated traction motor was investigated by means of Computational Fluid Dynamics (CFD) with special emphasis on the prediction of its cooling air flow rate. This investigation was suggested by the fact that the motor had to be designed in a non usual way as far as air flow is concerned and the subsequent thermal design of the motor had to be based on a well predicted flow rate. The cooling flow through the investigated motor is driven by an axis-mounted radial-blade centrifugal fan. Two variants of the motor differing in its fan wheel were analyzed by means of CFD. One of the two fan variants employs a two-fans-in-one-wheel configuration. The results together with analytical fluid-mechanical considerations helped to judge between these variants under the premise of maximum flow rate.
Keywords :
air; blades; computational fluid dynamics; cooling; fans; traction motors; ventilation; wheels; CFD; air flow rate; axis-mounted radial-blade centrifugal fan; computational fluid dynamics; cooling; fan wheel; self-ventilated traction motors; Computational fluid dynamics; Cooling; Electrical resistance measurement; Energy management; Fluid flow measurement; Heat transfer; Navier-Stokes equations; Synchronous motors; Thermal management; Traction motors; Computational Fluid Dynamics; cooling air flow; thermal management; traction motors;
Conference_Titel :
Power Electronics Electrical Drives Automation and Motion (SPEEDAM), 2010 International Symposium on
Conference_Location :
Pisa
Print_ISBN :
978-1-4244-4986-6
Electronic_ISBN :
978-1-4244-7919-1
DOI :
10.1109/SPEEDAM.2010.5542108