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

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 a...

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Main Authors: Foad Mehdi Zadeh, Jean-Yves Trépanier, Eddy Petro
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:International Journal of Aerospace Engineering
Online Access:http://dx.doi.org/10.1155/2013/284206
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author Foad Mehdi Zadeh
Jean-Yves Trépanier
Eddy Petro
author_facet Foad Mehdi Zadeh
Jean-Yves Trépanier
Eddy Petro
author_sort Foad Mehdi Zadeh
collection DOAJ
description 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.
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institution Kabale University
issn 1687-5966
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publishDate 2013-01-01
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spelling doaj-art-b3231b4bb4c3489ebce93e8c1beaf7902025-02-03T01:25:06ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742013-01-01201310.1155/2013/284206284206Development and Validation of a New Boundary Condition for Intake Analysis with DistortionFoad Mehdi Zadeh0Jean-Yves Trépanier1Eddy Petro2Department of Mechanichal Engineering, École Polytechnique de Montréal, 2500, Chemin de Polytechnique, Montréal, QC, H3T 1J4, CanadaDepartment of Mechanichal Engineering, École Polytechnique de Montréal, 2500, Chemin de Polytechnique, Montréal, QC, H3T 1J4, CanadaDepartment of Mechanichal Engineering, École Polytechnique de Montréal, 2500, Chemin de Polytechnique, Montréal, QC, H3T 1J4, CanadaThe 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.http://dx.doi.org/10.1155/2013/284206
spellingShingle Foad Mehdi Zadeh
Jean-Yves Trépanier
Eddy Petro
Development and Validation of a New Boundary Condition for Intake Analysis with Distortion
International Journal of Aerospace Engineering
title Development and Validation of a New Boundary Condition for Intake Analysis with Distortion
title_full Development and Validation of a New Boundary Condition for Intake Analysis with Distortion
title_fullStr Development and Validation of a New Boundary Condition for Intake Analysis with Distortion
title_full_unstemmed Development and Validation of a New Boundary Condition for Intake Analysis with Distortion
title_short Development and Validation of a New Boundary Condition for Intake Analysis with Distortion
title_sort development and validation of a new boundary condition for intake analysis with distortion
url http://dx.doi.org/10.1155/2013/284206
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AT eddypetro developmentandvalidationofanewboundaryconditionforintakeanalysiswithdistortion