Evaluation of Predicted Heat Transfer on a Transonic Blade Using v2-f Models

The v2 –f models of Durbin and the new v2 –f model of Jones et al. were used to compute the blade heat transfer for the transonic cascade of Giel et al.. Three different experimental cases were considered. Calculations were performed using the Glenn-HT code modified so that it solves these turbulence model equations using an implicit scheme. An iterative matrix solver, namely GMRES was used for this purpose. Comparisons were made with previously published results using the SST model and a simple algebraic model modified for the stagnation heat transfer effects and transition effects. The results, albeit limited to the present case, show that the v2 –f model of Durbin provides good predictions on the pressure surface. But there is some discrepancy between the suction surface heat transfer predictions and experimental measurements. The newer model of Jones et al. requires further modification before it can be routinely used for blade heat transfer.Copyright © 2004 by ASME