Open Access

ABSTRACT

Numerical Simulation of Particulate Erosion in a Single-Stage Turbine for Jet Engines

Masaya Suzuki^1,*, Manabu Ueno², Koji Fukudome², Yoji Okita¹, Makoto Yamamoto²

1 Japan Aerospace Exploration Agency, 7-44-1 Jindaiji Higashi-machi, Chofu-shi, Tokyo, 182-8522, Japan.
2 Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, 125-8585, Tokyo.

* Corresponding Author: Masaya Suzuki. Email:

The International Conference on Computational & Experimental Engineering and Sciences 2021, 23(1), 14-14. https://doi.org/10.32604/icces.2021.08337

Abstract

Recently, ceramic matrix composites (CMCs) are expected to utilize for the components of gas turbine engines due to its low density, high strength, and high rigidity in the high-temperature condition. The environmental barrier coating (EBC) is a key technology for the practical application of CMC to prevent surface regression from particulate and water vapor environments. However, the anti-erosion characteristics of CMC and EBC have not been clarified. In the present study, the authors performed numerical simulations of particulate erosion phenomena in a high-pressure turbine first stage to investigate the differences in the damage pattern and the performance between particle sizes. The numerical method was based on a weakly coupling for flow-wall interaction and one-way coupling for gas-solid twophase flow [1]. The computational target was a high-pressure turbine vane designed by JAXA [2]. The turbine material was CMC with EBC. The results showed that the small particles damage the stator vanes, but the large particles significantly erode the rotor blades, and the deterioration of the aerodynamic performance is the most severe due to small particles.

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Keywords

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