Wall-modeled LES of shock-wave/boundary layer interaction

F De Vanna, M Bernardini, F Picano, E Benini - International Journal of …, 2022 - Elsevier
The present paper discusses the physical reliability of turbulence modeling in an adverse
pressure gradient wall flow setup at moderate/high Reynolds number by comparing wall …

[HTML][HTML] URANOS: A GPU accelerated Navier-Stokes solver for compressible wall-bounded flows

F De Vanna, F Avanzi, M Cogo, S Sandrin… - Computer Physics …, 2023 - Elsevier
URANOS, a massively parallel GPU-accelerated compressible flow solver for high-fidelity
modeling of compressible wall flows, is presented. URANOS is based on modern high …

[HTML][HTML] On the coupling between wall-modeled LES and immersed boundary method towards applicative compressible flow simulations

F De Vanna, G Baldan, F Picano, E Benini - Computers & Fluids, 2023 - Elsevier
The current work presents an innovative numerical technique for high-Reynolds/high-Mach
number compressible flow simulations in complex configurations. In particular, the research …

[HTML][HTML] A deep neural network reduced order model for unsteady aerodynamics of pitching airfoils

G Baldan, A Guardone - Aerospace Science and Technology, 2024 - Elsevier
A machine learning framework is developed to compute the aerodynamic forces and
moment coefficients for a pitching NACA0012 airfoil incurring in light and deep dynamic …

A wave appropriate discontinuity sensor approach for compressible flows

AS Chamarthi, N Hoffmann, S Frankel - Physics of Fluids, 2023 - pubs.aip.org
In this work, we propose a novel selective discontinuity sensor approach for numerical
simulations of the compressible Navier–Stokes equations. Since transformation to …

DNS study on turbulent transition induced by an interaction between freestream turbulence and cylindrical roughness in swept flat-plate boundary layer

K Nakagawa, T Tsukahara, T Ishida - Aerospace, 2023 - mdpi.com
Laminar-to-turbulent transition in a swept flat-plate boundary layer is caused by the
breakdown of the crossflow vortex via high-frequency secondary instability and is promoted …

The effects of turbulence modeling on dynamic stall

G Baldan, F Manara, G Frassoldati… - arXiv preprint arXiv …, 2024 - arxiv.org
A numerical investigation of the flow evolution over a pitching NACA 0012 airfoil incurring in
deep dynamic stall phenomena is presented. The experimental data at Reynolds number …

[HTML][HTML] URANOS-2.0: Improved performance, enhanced portability, and model extension towards exascale computing of high-speed engineering flows

F De Vanna, G Baldan - Computer Physics Communications, 2024 - Elsevier
Abstract We present URANOS-2.0, the second major release of our massively parallel, GPU-
accelerated solver for compressible wall flow applications. This latest version represents a …

A modified shielding and rapid transition DDES model for separated flows

D Lei, H Yang, Y Zheng, Q Gao, X Jin - Entropy, 2023 - mdpi.com
In this paper, the major problems associated with detached eddy simulation (DES)(namely,
modeled stress depletion (MSD) and slowing of the RANS to LES transition (RLT)) are …

Characterization of very-large-scale motions in supersonic and hypersonic turbulent boundary layers

M Yu, SW Dong, QL Guo, ZG Tang… - Journal of Fluid …, 2024 - cambridge.org
Very-large-scale motions are commonly observed in moderate-and high-Reynolds-number
wall turbulence, constituting a considerable portion of the Reynolds stress and skin friction …