Coupled Heat Transfer Simulations of Air-Cooled Turbines with an Algebraic Transition Model

Abstract:

The investigation was to study the effect of laminar-turbulent transition on predicting thermal load of vane. The Abu-Ghannam and Shaw (AGS) algebraic transition model was applied in the coupled solver, HIT3D. Then the solver was employed to carry out coupled heat transfer simulations, and the test case was 5411 run of NASA0-MARKⅡ vane, a high-pressure turbine vane. The results shown that AGS model was able to predict the transition process in the boundary layer near the vane, and that the simulation with such model leads to thermal load agreeing well the measured one. Then the developed solver was applied to predict a low-pressure vane, and the results shown that CHT simulation with full turbulence model would predict higher thermal load than that with transition model.

• Periodical: Advanced Materials Research (Volumes 455-456)
• Pages: 1153-1159
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.455-456.1153
• Online since: January 2012
• Authors: Qiang Wang, Zhao Yuan Guo, Guo Tai Feng
• Keywords: Boundary Layer Flows, Coupled Heat Transfer, Thermal Load, Transition Flow, Turbine

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