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Keywords: rotating orifice
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Proceedings Papers

Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 1899-1912, June 11–15, 2012
Paper No: GT2012-68209
... been presented regarding discharge coefficients of radial holes in rotating shafts [6 8]. Only two investigations of axial rotating orifices with pre-swirl [3, 9] can be found and none for rotating radial holes. Dittmann et al. [3] showed the discharge behaviour of rotating orifices with pre-swirl...
Proceedings Papers

Proc. ASME. GT2010, Volume 4: Heat Transfer, Parts A and B, 1051-1060, June 14–18, 2010
Paper No: GT2010-22691
... In modern multi shaft gas turbine engines the cooling air taken from the compressor passes through various stationary or rotating holes or orifices to the turbine stage. The discharge coefficient of rotating orifices may vary considerably depending on the operating point and the geometry...
Proceedings Papers

Proc. ASME. GT2008, Volume 4: Heat Transfer, Parts A and B, 1599-1612, June 9–13, 2008
Paper No: GT2008-50976
.... The influence of different geometric features is incorporated into a model for the calculation of discharge coefficients. Cross-flow discharge coefficient rotating orifice secondary air system SM NT C AL ü e A hu In an effort to provide usable further insight into flows Reax Axial Reynolds number...