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International Journal of Turbomachinery, Propulsion and Power, Volume 5, Issue 2
June 2020 - 7 articles
Cover Story: The understanding of turbine trailing edge flow characteristics is of great importance for transonic high pressure turbine stages, with respect to both the evaluation of the aerodynamic performance of the blade and the interaction with the downstream blade row. The paper presents a thorough literature review of 50 years of both experimental and numerical research work. Combination of large scale tests and high-resolution time resolved data explains the unsteady flow separation mechanism dominated by von Kàrmàn vortices and their effect on both the trailing edge and the rear suction side pressure distribution, as well as the energy separation phenomenon in the blade wake. Code-to-code and code-to-experiments validation process is presented and discussed, on account of the adopted numerical method and turbulence closure. View this paper.
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Int. J. Turbomach. Propuls. Power - ISSN 2504-186X