Laser-Doppler anemometer measurements of air flow between cooling ribs of an electrical motor
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Journal Title
Journal ISSN
Volume Title
Helsinki University of Technology |
J Muu elektroninen julkaisu
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Authors
Date
2004
Department
Sovelletun termodynamiikan laboratorio
Laboratory of Applied Thermodynamics
Laboratory of Applied Thermodynamics
Major/Subject
Mcode
Degree programme
Language
en
Pages
23
Series
Abstract
Abstract: Two dimensional air flow velocities and turbulence parameters between cooling ribs of an electrical motor were measured using a laser-Doppler anemometer. Both the electrical motor and the air flow between the cooling ribs were approximately at the ambient temperature. Main result: The axial air velocity decreases substantially from 19 m/s to 8...9 m/s while flowing through the cooling rib channel. Also the kinetic energy of turbulence has a rapid decrease along the flow channel.Description
MEMO No CFD/THERMO-45-2004
DATE: 2nd February 2004
Keywords
cooling rib, electrical motor, laser-Doppler anemometer, velocity, turbulence