Detremmerie, Mathieu
[UCL]
Bartosiewicz, Yann
[UCL]
Due to environmental challenges, the European aviation sector will be inextricably linked to its environmental sustainability for the coming years. The secondary air system in an aircraft engine extracts the air from the primary air system, part of the air that participates to the thrust, to provide cooling air for different engine’s parts. One of the most important task during the secondary air system design is to determine the right amount of the air to guarantee a safe operation without detrimental effects on the engine’s performance. A comprehensive knowledge of the flow inside the secondary air system such as the evaluation of the pressure losses through rotating holes is then necessary. Pressure losses through rotating holes are quantified using the discharge coefficient, the actual to ideal mass flow ratio. This work provides the validation based on the experimental results of a numerical model in order to assess the pressure losses through different types of holes. The numerical model is then used to evaluate the flow of a rotating orifice into a high-pressure compressor cavity system. Due to the high computing resource required to run the simulation a numerical strategy is setting up in order to decrease the computational time necessary while maintaining a good agreement with the discharge coefficient values of the high-fidelity resolution.
Bibliographic reference |
Detremmerie, Mathieu. Numerical evaluation of pressure losses through rotating holes. Ecole polytechnique de Louvain, Université catholique de Louvain, 2019. Prom. : Bartosiewicz, Yann. |
Permanent URL |
http://hdl.handle.net/2078.1/thesis:22706 |