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Keywords: rotors
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Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. November 2011, 133(11): 111702.
Published Online: September 19, 2011
...Julien Pellé; Souad Harmand The present work relates to an experimental study of the local convective heat transfer over the rotor surface in the air-gap of a discoidal rotor–stator system. This configuration is of interest namely, in electrical machines or tubomachinery. Following precedent...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. July 2011, 133(7): 071707.
Published Online: April 4, 2011
...Julien Pellé; Souad Harmand The experimental work presented in this paper relates to the local convective heat transfer on the rotor surface in the airgap of a discoidal rotor stator system. The stator used in these experiments is a multiperforated disk in which an air suction due to the rotation...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. August 2009, 131(8): 081601.
Published Online: June 3, 2009
... of the initial wall heat flux into cooled rotor blades. During the spinning-up period, the rotor is spun up to nearly its nominal speed (from 0 rpm to 6200 rpm) resulting in preheating due to drag losses. The long duration of this experiment ( ∼ 450 s ) and the magnitude of the wall temperature increase result...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. February 2009, 131(2): 022202.
Published Online: January 5, 2009
...André Burdet; Reza S. Abhari The pulsation of film cooling jets in turbines is driven by the near hole pressure fluctuation caused by the deterministic interaction of stator/rotor blade rows. Jet pulsation is characterized by the coolant near hole reduced frequency Ω c and the pulsation amplitude...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. June 2008, 130(6): 061702.
Published Online: April 22, 2008
... considerably extended the previous experiences that offer practical applications to the trailing edge cooling of a gas turbine rotor blade. A selection of experimental data illustrates the individual and interactive influences of Re, Ro, and buoyancy number (Bu) on local heat transfer with and without bleeds...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. September 2006, 128(9): 879–888.
Published Online: April 22, 2006
... on the first-stage rotor blade of a three-stage axial turbine at 2400 rpm (positive off-design), 2550 rpm (design), and 3000 rpm (negative off-design), respectively. The effect of three blowing ratios is also studied. The blade Reynolds number based on the axial chord length and the exit velocity is 200,000...