Direct numerical simulation of complete H-type and K-type transitions with implications for the dynamics of turbulent boundary layers
The onset and development of turbulence from controlled disturbances in compressible (in
each transition scenario. Skin-friction maxima, organized hairpin vortices and the onset of …
each transition scenario. Skin-friction maxima, organized hairpin vortices and the onset of …
Importance of the nozzle-exit boundary-layer state in subsonic turbulent jets
To investigate the effects of the nozzle-exit conditions on jet flow and sound fields, large-
eddy simulations of an isothermal Mach 0.9 jet issued from a convergent-straight nozzle are …
eddy simulations of an isothermal Mach 0.9 jet issued from a convergent-straight nozzle are …
Unstructured large-eddy simulations of supersonic jets
Experience gained from previous jet noise studies with the unstructured large-eddy
simulation flow solver “Charles” is summarized and put to practice for the predictions of …
simulation flow solver “Charles” is summarized and put to practice for the predictions of …
An improved dynamic non-equilibrium wall-model for large eddy simulation
A non-equilibrium wall-model based on unsteady 3D Reynolds-averaged Navier-Stokes
(RANS) equations has been implemented in an unstructured mesh environment. The …
(RANS) equations has been implemented in an unstructured mesh environment. The …
Input-output analysis of high-speed axisymmetric isothermal jet noise
J Jeun, JW Nichols, MR Jovanović - Physics of Fluids, 2016 - pubs.aip.org
We use input-output analysis to predict and understand the aeroacoustics of highspeed
isothermal turbulent jets. We consider axisymmetric linear perturbations about Reynolds …
isothermal turbulent jets. We consider axisymmetric linear perturbations about Reynolds …
Transition to turbulence in hypersonic flow over a compression ramp due to intrinsic instability
In this work, a transition process in a hypersonic flow over a cold-wall compression ramp is
studied using direct numerical simulation (DNS) and global stability analysis (GSA). The free …
studied using direct numerical simulation (DNS) and global stability analysis (GSA). The free …
Unsteady effects in a hypersonic compression ramp flow with laminar separation
Direct numerical simulations (DNS) are performed to investigate a hypersonic flow over a
compression ramp with a free stream Mach number of 7.7 and a free stream Reynolds …
compression ramp with a free stream Mach number of 7.7 and a free stream Reynolds …
A database for reduced-complexity modeling of fluid flows
We present a publicly accessible database specifically designed to aid in the conception,
training, demonstration, evaluation, and comparison of reduced-complexity models for fluid …
training, demonstration, evaluation, and comparison of reduced-complexity models for fluid …
Stability and modal analysis of shock/boundary layer interactions
JW Nichols, J Larsson, M Bernardini… - … and Computational Fluid …, 2017 - Springer
The dynamics of oblique shock wave/turbulent boundary layer interactions is analyzed by
mining a large-eddy simulation (LES) database for various strengths of the incoming shock …
mining a large-eddy simulation (LES) database for various strengths of the incoming shock …
Amplification and regulation of periodic nanostructures in multipulse ultrashort laser-induced surface evolution by electromagnetic-hydrodynamic simulations
The formation of periodic structures in ultrafast laser-irradiated surfaces implies dynamic
coupling between the incoming light and the light-driven material. To capture the mutual …
coupling between the incoming light and the light-driven material. To capture the mutual …