Large-eddy simulation of 3-D corner separation in a linear compressor cascade

F Gao, W Ma, G Zambonini, J Boudet, X Ottavy, L Lu… - Physics of …, 2015 - pubs.aip.org
The increase of the thrust/weight ratio of aircraft engines is extremely restricted by different 3-
D flow loss mechanisms. One of them is the corner separation that can form at the junction …

Corner separation dynamics in a linear compressor cascade

G Zambonini, X Ottavy… - Journal of Fluids …, 2017 - asmedigitalcollection.asme.org
This paper considers the inherent unsteady behavior of the three-dimensional (3D)
separation in the corner region of a subsonic linear compressor cascade equipped of 13 …

Large eddy simulation of the separated flow transition on the suction surface of a high subsonic compressor airfoil

M Wang, Z Li, C Yang, S Zhao, Y Zhang, X Lu - Physics of Fluids, 2020 - pubs.aip.org
A large eddy simulation (LES) was conducted to investigate the separated flow transition on
the suction surface of a high subsonic compressor airfoil at two Reynolds number (Re) …

Modeling the wall shear stress in large-eddy simulation using graph neural networks

D Dupuy, N Odier, C Lapeyre… - Data-Centric …, 2023 - cambridge.org
As the Reynolds number increases, the large-eddy simulation (LES) of complex flows
becomes increasingly intractable because near-wall turbulent structures become …

Direct numerical simulation of supersonic turbulent flows around a tandem expansion-compression corner

J Fang, Y Yao, AA Zheltovodov, Z Li, L Lu - Physics of Fluids, 2015 - pubs.aip.org
The M= 2.9 supersonic turbulent flows over a tandem expansion-compression corner
configuration with a sharp deflection angle of 25 at three Reynolds numbers Re δ= 20 000 …

Review on the sensitization of turbulence models to rotation/curvature and the application to rotating machinery

X Huang, W Yang, Y Li, B Qiu, Q Guo… - Applied Mathematics and …, 2019 - Elsevier
The complex geometry of rotating machines makes the flows strongly affected by rotation
and curvature, which are challenging for turbulence modeling. During the development of …

Using graph neural networks for wall modeling in compressible anisothermal flows

D Dupuy, N Odier, C Lapeyre - Data-Centric Engineering, 2024 - cambridge.org
Compressible anisothermal flows, which are commonly found in industrial settings such as
combustion chambers and heat exchangers, are characterized by significant variations in …

Flow structure of a low aspect ratio wall-mounted airfoil operating in a low Reynolds number flow

M Awasthi, DJ Moreau, CJ Doolan - Experimental Thermal and Fluid …, 2018 - Elsevier
Measurements on a wall-mounted NACA 0012 airfoil with an aspect ratio (AR) of 0.5
operating in the low Reynolds number (274,000, based on chord) regime were performed …

Hybrid RANS/LES simulation of corner stall in a linear compressor cascade

G Xia, G Medic, TJ Praisner - Journal of …, 2018 - asmedigitalcollection.asme.org
Current design-cycle Reynolds-averaged Navier–Stokes (RANS) based computational fluid
dynamics (CFD) methods have the tendency to over-predict corner-stall events for axial-flow …

Large eddy simulation of boundary layer transition mechanisms in a gas-turbine compressor cascade

AD Scillitoe, PG Tucker… - Journal of …, 2019 - asmedigitalcollection.asme.org
Large eddy simulation (LES) is used to explore the boundary layer transition mechanisms in
two rectilinear compressor cascades. To reduce numerical dissipation, a novel locally …