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97/04921 Comparison of predicted and experimental Nusseit number for a film-cooled rotating blade : Garg, V. K. and Abhari, R. S. Heat and Fluid Flow, 1997, 18, (5), 452–460

Author:
Garg, V. K.   Abhari, R. S.  


Journal:
Fuel and Energy Abstracts


Issue Date:
1997


Abstract(summary):

A comparison was made between the predictions from a three-dimensional Navier-Stokes code and the Nusselt number data obtained on a film-cooled, rotating turbine blade. The blade chosen is the ACE rotor with five rows containing 93 film-cooling holes covering the entire span. The present work appears to be the first comparison of the prediction of surface heat transfer using a 3-D Navier-Stokes code with film injection and the measured heat flux on a fully film-cooled rotating transonic turbine blade. Fairly good agreement with measured data was obtained on the suction surface, particularly near the hub section. Yet prediction was poor on the pressure surface, perhaps due to the presence of unsteady effects caused by stator-rotor interaction in the experiments, which are not modelled in the present numerical computations.


Page:
426-427


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