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Faculté des Sciences appliquées
Faculté des Sciences appliquées
MASTER THESIS

Assessment of Turbulence Models for S-Duct Flows: A Comparison of SA and SST Approaches Cenaero

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Peters, Carmine ULiège
Promotor(s) : Arnst, Maarten ULiège ; Boxho, Margaux
Date of defense : 29-Jun-2026/30-Jun-2026 • Permalink : http://hdl.handle.net/2268.2/26127
Details
Title : Assessment of Turbulence Models for S-Duct Flows: A Comparison of SA and SST Approaches Cenaero
Translated title : [fr] Évaluation des modèles de turbulence pour les écoulements dans les conduits en S : comparaison des approches SA et SST
Author : Peters, Carmine ULiège
Date of defense  : 29-Jun-2026/30-Jun-2026
Advisor(s) : Arnst, Maarten ULiège
Boxho, Margaux 
Committee's member(s) : Hillewaert, Koen ULiège
Goffart, Nicolas 
Language : English
Number of pages : 62
Keywords : [en] S-duct
[en] CFD
[en] Aerodynamics
[en] Propulsion
[en] Turbulent models
[en] SA
[en] SST
Discipline(s) : Engineering, computing & technology > Aerospace & aeronautics engineering
Commentary : Conducted within the framework of the Costeo project in Cenaero.
Funders : Fédération Wallonie-Bruxelles
Research unit : Cenaero
Name of the research project : Costeo
Target public : Researchers
Professionals of domain
Student
Institution(s) : Université de Liège, Liège, Belgique
Degree: Master en ingénieur civil en aérospatiale, à finalité spécialisée en "aerospace engineering"
Faculty: Master thesis of the Faculté des Sciences appliquées

Abstract

[en] Aircraft S-ducts are prone to flow distortion, which can significantly affect downstream compressor performance. This work aims to assess the capability of several turbulence models to predict such distortions. Numerical simulations were performed using SU2 on structured and unstructured meshes, based on AIAA benchmark conditions. Results show that the Spalart–Allmaras model provides the best compromise between accuracy and robustness, while more advanced models do not significantly improve predictions. These findings highlight the limitations of RANS models for separated flows and suggest the need for higher–fidelity approaches.


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Access MasterThesis_PetersCarmine_s2307009.pdf
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Author

  • Peters, Carmine ULiège Université de Liège > Master ing. civ. aéro., fin. spéc. aer. eng.

Promotor(s)

Committee's member(s)

  • Hillewaert, Koen ULiège Université de Liège - ULiège > Département d'aérospatiale et mécanique > Design of Turbomachines and Propulsors (DoTP)
    ORBi View his publications on ORBi
  • Goffart, Nicolas








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