Author(s)

Chen Jun ¹

Affiliation(s)

¹ Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, China

Corresponding Author

Chen Jun

ABSTRACT

The Airbus A330 with Trent 700 engines may form ground vortices during ground maintenance due to the small gap between the air inlet cowl and the ground, which affects engine performance. A three - dimensional model of the engine is established for numerical simulation. The computational domain, mesh, and boundary conditions are set, and the method is verified. Different wind speeds (1 - 9 m/s) and directions are calculated. Results show that under cross - wind, the ground vortex intensity first increases then decreases with wind speed, being stronger at 3 - 4 m/s and moving along the wind. At 4 m/s, the intensity peaks at about 210° wind direction, causing severe distortion at the inlet cowl outlet. This research is crucial for engine ground - test maintenance.

KEYWORDS

Ground vortex, Trent700 engine, Wind speed, Wind directon, Numerical simulation

CITE THIS PAPER

Chen Jun, Numerical simulation of the ground vortex of the Trent700 engine in ground idle: As a reference for the safe maintenance of the engine. Journal of Engineering Mechanics and Machinery (2025) Vol. 10: 157-170. DOI: http://dx.doi.org/10.23977/jemm.2025.100117.

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