[en] This work presents DNS simulations of a wake generator to reproduce tests carried out by the von Karman Institute for Fluid Dynamics (VKI) in collaboration with Safran Aircraft Engines as part of the SPLEEN project. However, due to the difficult conditions encountered in this type of simulation, rather invasive stabilisation techniques had to be used
to perform the calculations. In order to reduce the impact of stabilisation on subsequent simulations, this contribution aims to compare stabilisation strategies, in particular ESDGSEM, positivity preserving and AV, taking into account the topology of the flow around wake generators. The objective is to identify the trade-offs between accuracy, robustness, physical fidelity and computational efficiency, in order to provide guidance for the choice of stabilisation strategies in industrial simulations of compressible turbulent flows.
Research Center/Unit :
DoTp - Design of turbomachines and propulsors
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Reuter, Antoine ; Université de Liège - ULiège > Aérospatiale et Mécanique (A&M)
Borbouse, Maxime ; Université de Liège - ULiège > Aérospatiale et Mécanique (A&M) ; UCL - Catholic University of Louvain > Institute of Mechanics, Materials and Civil Engineering ; The von Karman Institute for Fluid Dynamics > Aerospace department
Thys, Mars ; Université de Liège - ULiège > Aérospatiale et Mécanique (A&M)
Bilocq, Amaury; ULiège - Université de Liège > Aerospace and mechanical engineering ; Cenaero > Hypersonic flows and phase-changing materials
Henneaux, David; Cenaero > Hypersonic flows and phase-changing materials
Hillewaert, Koen ; Université de Liège - ULiège > Aérospatiale et Mécanique (A&M) ; the von Karman Institue of fluid dynamics > Aerospace ; Cenaero > Hypersonic flows and phase-changing materials
Language :
English
Title :
High-order simulation of the SPLEEN cascade wake generator: impact of the stabilisation method
Publication date :
2026
Number of pages :
18
Event name :
The 15th ERCOFTAC workshop on Direct and Large Eddy Simulation
The present research benefited from computational resources made available on Lucia, the Tier-1 supercomputer of the Walloon Region, infrastructure funded by the Walloon Region under the grant agreement n°1910247.
