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Film Cooling Performance on the Trailing Edge Cutback of Turbine Blade with Various Slot Inner Angles

Published: 08 January 2018 Publication History

Abstract

In order to study the impact of the slot inner angle on the film cooling performance of the trailing edge cutback for turbine blade, physical model and the three-dimensional mathematical model were established. The temperature distribution on the pressure side close to the wall was obtained through numerical simulation method, and the adiabatic temperature difference ratio and actual temperature difference ratio on the trailing edge cutback with various slot inner angles were analyzed. The results showed that, as slot inner angle increases, the average adiabatic temperature difference ratio on the trailing edge cutback and the effect of thermal insulation of gas film are increased. The impact of actual temperature difference ratio on the trailing edge cutback suffers slot inner angle is small, and it is conducive to lower the wall temperature of trailing edge when reduces the slot inner angle. For the study of film cooling performance on the trailing edge cutback of turbine blade, in addition to evaluate the adiabatic temperature difference ratio, it should also assess the actual temperature difference ratio.

References

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  1. Film Cooling Performance on the Trailing Edge Cutback of Turbine Blade with Various Slot Inner Angles

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    ICCMS '18: Proceedings of the 10th International Conference on Computer Modeling and Simulation
    January 2018
    310 pages
    ISBN:9781450363396
    DOI:10.1145/3177457
    © 2018 Association for Computing Machinery. ACM acknowledges that this contribution was authored or co-authored by an employee, contractor or affiliate of a national government. As such, the Government retains a nonexclusive, royalty-free right to publish or reproduce this article, or to allow others to do so, for Government purposes only.

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    • University of Canberra: University of Canberra
    • University of Technology Sydney

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    Published: 08 January 2018

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    Author Tags

    1. Film cooling
    2. Numerical simulation
    3. Slot inner angle
    4. Trailing edge cutback
    5. Turbine blade

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