IGTC-34 Film Cooling Behavior in Thin Rectangular Channel : Quick Prediction with k-ε Turulent Model(Session B-3 BLADE COOLING)

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概要

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• The present experiment showed that injected jets even from a two-dimensional slit in a thin rectangular channel generated a complex three-dimensional flow, in which flow reversal region existed partially near injection. Quick-prediction method by solving parabolic equations for a low Reynolds number k-ε model was applied to predict such a complex film cooling behavior in the thin rectangular channel. The separation bubbles just after the injection are considered to be a kind of large eddies in a turbulent duct flow. To simulate the bubbles just after the injection slit, the excess turbulent kinetic energy was superposed to the oncoming k profile at the injection slit. Predicted film cooling effectiveness were compared with experimental data and showed generally fairly good agreement.

• 公益社団法人日本ガスタービン学会の論文

著者

• Osakabe M.

  Tokyo University Of Mercantile Marine

• Miyazawa T.

  Tokyo University of Mercantile Marine

• Motoda T.

  Tokyo University of Mercantile Marine

• Wu Y.W.

  Tokyo University of Mercantile Marine

• Nakashima K.

  Hiroshima Technical College of Maritime Technology

関連論文

• IGTC-34 Film Cooling Behavior in Thin Rectangular Channel : Quick Prediction with k-ε Turulent Model(Session B-3 BLADE COOLING)

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