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Development and Validation of a New Boundary Condition for Intake Analysis with Distortion

Foad Mehdi Zadeh, Jean-Yves Trépanier and Eddy Petro

Article (2013)

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Abstract

The design of an intake for a gas turbine engine involves CFD-based investigation and experimental assessment in an intake test rig. In both cases, the engine is represented by a mass flux sink, usually positioned a few fan radii aft of the real fan face. In general, this approach is sufficient to analyze intake geometry for low distortion at the fan face, because in this case the interaction of the fan with the inlet flow can be neglected. Where there are higher levels of distortion at the fan face, the interaction could become more significant and a different approach would be preferable. One alternative that takes into account the interaction in such cases includes the fan in the analysis of the intake, using either a steady or unsteady flow model approach. However, this solution is expensive and too computationally intensive to be useful in design mode. The solution proposed in this paper is to implement a new boundary condition at the fan face which better represents the interaction of the fan with the flow in the air intake in the presence of distortion. This boundary condition includes a simplified fan model and a coupling strategy applied between the fan and the inlet. The results obtained with this new boundary condition are compared to full 3D unsteady CFD simulations that include the fan.

Subjects: 2100 Mechanical engineering > 2100 Mechanical engineering
2100 Mechanical engineering > 2108 Aerospace, aeronautical and automotive engineering
Department: Department of Mechanical Engineering
Funders: Pratt & Whitney Canada, J.-A. Bormbardier Foundation, CRSNG / NSERC
PolyPublie URL: https://publications.polymtl.ca/3433/
Journal Title: International Journal of Aerospace Engineering (vol. 2013)
Publisher: Hindawi
DOI: 10.1155/2013/284206
Official URL: https://doi.org/10.1155/2013/284206
Date Deposited: 06 Dec 2018 12:31
Last Modified: 01 Nov 2023 12:59
Cite in APA 7: Mehdi Zadeh, F., Trépanier, J.-Y., & Petro, E. (2013). Development and Validation of a New Boundary Condition for Intake Analysis with Distortion. International Journal of Aerospace Engineering, 2013, 284206 (12 pages). https://doi.org/10.1155/2013/284206

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