Trends in turbomachinery turbulence treatments

PG Tucker - Progress in Aerospace Sciences, 2013 - Elsevier
General forms of turbulence models are outlined along with their defects and palliatives for
these in relation to turbomachinery. The turbulence modelling hierarchy available in …

[HTML][HTML] Investigation on flow structure and aerodynamic characteristics over an airfoil at low Reynolds number—A review

T Xia, H Dong, L Yang, S Liu, Z Jin - AIP Advances, 2021 - pubs.aip.org
This Review summarizes the progress in research on the flow structure and aerodynamic
characteristics of an airfoil at a low Reynolds number encountered by near-space low-speed …

Features of laminar separation bubble subjected to varying adverse pressure gradients

R Kumar, S Sarkar - Physics of Fluids, 2023 - pubs.aip.org
This article describes the spatial development of a laminar separation bubble (LSB), its
transition, and eventual breakdown under the influence of adverse pressure gradients …

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) …

Separated boundary layer transition under pressure gradient in the presence of free-stream turbulence

HJ Li, Z Yang - Physics of Fluids, 2019 - pubs.aip.org
Large-eddy simulation (LES) has been carried out to investigate the transition process of a
separated boundary layer on a flat plate. A streamwise pressure distribution is imposed to …

The effect of leading-edge shape on separation-induced transition on the suction surface of a controlled-diffusion airfoil

X Tong, B Lian, P Yu, X Qiang, H Ouyang - Physics of Fluids, 2023 - pubs.aip.org
To investigate the effect of leading-edge shape on separation-induced transition on suction
surface, a large eddy simulation is performed on two compressor controlled-diffusion airfoils …

Excitation of a separated flow by a series of protuberances near the leading edge of a model aerofoil

P Singh, S Sarkar - Journal of Turbomachinery, 2023 - asmedigitalcollection.asme.org
This article documents the manifestation of a shear layer under the excitation of a series of
hemispherical protuberances near the leading edge of a constant-thickness airfoil. The …

Numerical investigations of the separated transitional flow over compressor blades with different loading distributions

M Wang, Z Li, C Yang, G Han, S Zhao, X Lu - Aerospace Science and …, 2020 - Elsevier
Large eddy simulations (LESs) were conducted to investigate the separated flow transition
process over two compressor blades with different loading distributions at Reynolds …

Numerical study of the primary instability in a separated boundary layer transition under elevated free-stream turbulence

M Langari, Z Yang - Physics of Fluids, 2013 - pubs.aip.org
Numerical studies of laminar-to-turbulent transition in a separation bubble subjected to two
free-stream turbulence levels (FST) have been performed using Large-Eddy Simulation …

[HTML][HTML] Vortex dynamics and entropy generation in separated transitional flow over a compressor blade at various incidence angles

W Mingyang, LI Ziliang, HAN Ge, Y Chengwu… - Chinese Journal of …, 2022 - Elsevier
The transition process within a Laminar Separation Bubble (LSB) that formed on a
compressor blade surface was investigated using Large Eddy Simulations (LESs) at a …