@article{Howey:2009:10.1016/j.ijheatmasstransfer.2009.09.006,
author = {Howey, DA and Pullen, KR and Holmes, AS},
doi = {10.1016/j.ijheatmasstransfer.2009.09.006},
journal = {International Journal of Heat and Mass Transfer},
pages = {491--501},
title = {Radially resolved measurement of stator heat transfer in a rotor-stator disc system},
url = {http://dx.doi.org/10.1016/j.ijheatmasstransfer.2009.09.006},
volume = {53},
year = {2009}
}

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TY  - JOUR
AB  - This paper describes a new experimental method for measuring stator heat transfer in a rotor–stator disc system using an electrical heater array. The system is partially blocked at the periphery, with radial outflow of rotor-pumped air from an inlet at stator centre. The aim is to improve thermal performance prediction for air-cooled disc type electrical machines. Local Nusselt numbers were measured for 0.6<r/R<1 at three non-dimensional gap ratios G=g/R=(0.0106,0.0212,0.0297) and rotational Reynolds numbers 3.7e4less-than-or-equals, slantReθless-than-or-equals, slant5.6e5. Transition at the stator is observed to occur at Reθ>3e5 for all gap ratios. Increased Nusselt numbers at the periphery are observed for all Reθ and G because of the ingress of ambient air along the stator due to the rotor pumping effect.
AU  - Howey,DA
AU  - Pullen,KR
AU  - Holmes,AS
DO  - 10.1016/j.ijheatmasstransfer.2009.09.006
EP  - 501
PY  - 2009///
SN  - 0017-9310
SP  - 491
TI  - Radially resolved measurement of stator heat transfer in a rotor-stator disc system
T2  - International Journal of Heat and Mass Transfer
UR  - http://dx.doi.org/10.1016/j.ijheatmasstransfer.2009.09.006
UR  - http://hdl.handle.net/10044/1/4298
VL  - 53
ER  - 

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