38 citations · 103 across the 13 of their papers we have counts for
13 papers
Bow-shock instability in entry, descent, and landing vehicles under high-enthalpy conditions
Adrián Antón-Álvarez, Adrián Lozano-Durán
Laminar--turbulent transition remains a major uncertainty in the aerothermal design of entry, descent, and landing (EDL) vehicles. We show that, under high-enthalpy Mars-entry cond…
Toward a flow-structure-based wall-modeled large-eddy simulation paradigm
Ahmed Elnahhas, Adrián Lozano-Durán, Parviz Moin
A promising and cost-effective method for numerical simulation of high Re wall-bounded flows is wall-modeled large-eddy simulation. Most wall models are formulated from the Reynold…
Performance of wall-modeled LES for external aerodynamics in the NASA Juncture Flow
Adrián Lozano-Durán, Sanjeeb T. Bose, Parviz Moin
We investigate the performance of wall-modeled LES for external aerodynamics in the NASA Juncture Flow. We characterize the errors in the prediction of mean velocity profiles and p…
Self-critical machine-learning wall-modeled LES for external aerodynamics
Adrián Lozano-Durán, Hyunji Jane Bae
The prediction of aircraft aerodynamic quantities of interest remains among the most pressing challenges for computational fluid dynamics. The aircraft aerodynamics are inherently…
Information transfer between turbulent boundary layer and porous media
Wenkang Wang, Xu Chu, Adrián Lozano-Durán +2
The interaction between the flow above and below a permeable wall is a central topic in the study of porous media. While previous investigations have provided compelling evidence o…
On the evolution of the velocity gradient tensor in transitional boundary layers
Ahmed Elnahhas, Perry L. Johnson, Adrián Lozano-Durán +1
We study the transition to turbulence from the perspective of the velocity gradient tensor dynamics. Our work is motivated by the observation of nonlinear structures emerging durin…
Wall-modeled large-eddy simulation of non-equilibrium turbulent boundary layers
Minjeong Cho, George I. Park, Adrián Lozano-Durán +1
We conducted WMLES to examine the performance of a simple and widely used ODE-based equilibrium wall model in a spatially-developing 3D TBL inside a bent square duct (Schwarz and B…
Computational model discovery with reinforcement learning
Maxime Bassenne, Adrián Lozano-Durán
The motivation of this study is to leverage recent breakthroughs in artificial intelligence research to unlock novel solutions to important scientific problems encountered in compu…
Inter-scale energy transfer in turbulence from the viewpoint of subfilter scales
J. I. Cardesa, A. Lozano-Durán
This brief is organized as follows. In Section 2 we introduce the filter-scale energy equations that lead to the subfilter-scale dissipation term P. We discuss the properties of th…
Wall turbulence without modal instability of the streaks
Adrián Lozano-Durán, Marios-Andreas Nikolaidis, Navid C. Constantinou +1
Despite the nonlinear nature of wall turbulence, there is evidence that the mechanism underlying the energy transfer from the mean flow to the turbulent fluctuations can be ascribe…
Coherent structures and secondary flow in turbulent square duct
Marco Atzori, Ricardo Vinuesa, Adrián Lozano-Durán +1
The aim of the present work is to investigate the role of coherent structures in the generation of the secondary flow in a turbulent square duct. The coherent structures are define…
Turbulent windprint on a liquid surface
Stéphane Perrard, Adrián Lozano-Durán, Marc Rabaud +2
We investigate the effect of a light turbulent wind on a liquid surface, below the onset of wave generation. In that regime, the liquid surface is populated by small disorganised d…
The 3D structure of turbulent channels up to
Adrián Lozano-Durán, Javier Jiménez
Several time-resolved fluid dynamics videos of turbulent channels from to are presented. The videos show the temporal evolution of sweeps (…