A method is presented for predicting the energy loss for a 2D turbine cascade blade operating in subsonic regions where the exit Mach number ≤ 0.8. A prediction method based on entropy creation was used to analyze the cascade profile loss mechanism. The basic profile loss model was introduced from the isentropic Mach number distribution along the blade surface and the trailing edge loss model was introduced from available test data, CFD results and available loss models. In addition, the Reynolds number correction curve was applied from previous research. Linear cascade test datasets which represent hub, mid-span and tip sections were used to validate this loss model.
- International Gas Turbine Institute
Profile Loss Prediction for High Pressure Steam Turbines
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Cheon, JH, Milčák, P, Pacák, A, Kang, CR, & Šťastný, M. "Profile Loss Prediction for High Pressure Steam Turbines." Proceedings of the ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines. Seoul, South Korea. June 13–17, 2016. V008T26A005. ASME. https://doi.org/10.1115/GT2016-56114
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