7月28日～8月1日サンフランシスコで開催されたASME – JSME – KSME Joint Fluids Engineering Conference 2019にて、スペースQOL・システムデザインチーム山本誠教授が総会講演を行いました。
Multi-Physics CFD Simulation of Particle Deposition With a Hybrid Grid- and Particle-Based Method
Prof. Makoto Yamamoto
Particle deposition occurs in a jet engine, when a jet engine is operated in a particulate environment like volcanic ash clouds. The ingested ash is melted in a combustion chamber and becomes a small droplet because the temperature exceeds the melting point of ash. Since turbine components are colder than the droplet, some droplets adhere and accrete on the surfaces. The particle deposition does not only leads to deterioration of the turbine performance, but also shorten the life time of the turbine. Therefore, the prediction and understanding of the particle deposition phenomena are of importance from the engineering viewpoint. The objectives of the present study are to model the particle deposition phenomenon with a hybrid grid- and particle-based method, and to investigate the particle deposition around the leading edge of a modeled high-pressure turbine vane. The finite difference method was used as the grid-based method to simulate the flow field, the E-MPS method was employed as the particle-based method to simulate the solidification of droplets, and these two methods were effectively coupled. In the presentation, the detail of numerical procedures will be explained, and then some typical results will be introduced.
Numerical Simulation of Deposition Phenomena on High-Pressure Turbine Vane Using UPACS
Technical Paper Publication (JSME). AJKFLUIDS2019-5612
Kenta Mizutori, Koji Fukudome, Makoto Yamamoto, Tokyo University of Science, Tokyo, Japan, Masaya Suzuki, Japan Aerospace Exploration Agency, Tokyo, Japan
■ASME-JSME-KSME2019 Joint Fluids Engineering Conference サイトはこちら