Deep Learning-based Algebraic Reynolds Stress Closures for RANS Simulations of Turbulent FlowsTurbulence is ubiquitous in engineering and science, yet direct simulation is prohibitively expensive. The Reynolds-averaged Navier-Stokes (RANS) equations provide savings exceeding ten orders of…Daniel Dehtyriov, Jonathan F. MacArt, Justin Sirignano·Jun 10, 2026SaveLearn
Deep Learning of Solver-Aware Turbulence Closures from Nudged LES DynamicsThe differentiable physics paradigm may be leveraged as an a-posteriori approach for discovering turbulence closure models by embedding a neural network parameterization directly inside the solver…Ashwin Suriyanarayanan, Dibyajyoti Chakraborty, Romit Maulik·Jun 10, 2026SaveLearn
Lagrangian dispersion in experimental stratified turbulenceLagrangian measurements of tracer particle dispersion in stratified turbulence are presented from a large-scale experiment achieving both high buoyancy Reynolds numbers and low Froude numbers -- a…Maelys Magnier, Costanza Rodda, Clément Savaro et al.·Jun 10, 2026SaveLearn
Neural ensemble Kalman filter: Data assimilation for compressible flows with shocksData assimilation (DA) for compressible flows with shocks is challenging because many classical DA methods generate spurious oscillations and nonphysical features near uncertain shocks. We focus here…Xu-Hui Zhou, Lorenzo Beronilla, Michael K. Sleeman et al.·Jun 10, 2026SaveLearn
Effect of subgrid-scale anisotropy on wall-modeled large-eddy simulation of turbulent flow with smooth-body separationWe examine the role of anisotropic subgrid-scale (SGS) stress in wall-modeled large-eddy simulation (WMLES) of flow over a spanwise-uniform Gaussian-shaped bump, with emphasis on predicting flow…Di Zhou, H. Jane Bae·Jun 10, 2026SaveLearn
Machine-learning-based multipoint optimization of fluidic injection parameters for improving nozzle performanceFluidic injection offers a promising solution to improve the performance of the overexpanded single expansion ramp nozzles (SERNs) during vehicle acceleration. However, determining the injection…Yunjia Yang, Jiazhe Li, Yufei Zhang et al.·Jun 10, 2026SaveLearn
Translation dynamics of evaporating sessile binary-mixture droplet populationsThe translation dynamics of two binary mixture droplets is investigated theoretically and is corroborated with experiments. The proposed model accounts for the effects of Marangoni stresses generated…Debarshi Debnath, Anna Malachtari, George Karapetsas et al.·Jun 9, 2026SaveLearn
Linear stability analysis of particle-laden Couette-Poiseuille flows: effect of porous wallsThe current study presents a three-dimensional linear stability analysis of particle-laden Couette-Poiseuille flow suspended in a Newtonian fluid between two parallel plates, with the lower plate…Ananthapadmanabhan Ramesh, Abbas Moradi Bilondi, Mohammadreza Mahmoudian et al.·Jun 9, 2026SaveLearn
Inertial effects on the mechanical efficiency of a semi-passive oscillating hydrofoil energy harvesterOscillating-foil-based energy harvesters have demonstrated strong potential for low-speed hydrokinetic energy extraction; however, the actuator-level mechanical energy balance associated with…Zihan Zhang, Qimin Feng, Yuanhang Zhu et al.·Jun 9, 2026SaveLearn
Topological origin of flow distributions in disordered porous mediaWe investigate steady Stokes flow through porous media composed of two-dimensional disordered arrays of circular obstacles. We develop a theory for the statistics of flow rates based on a…Jose Arnal, Guillem Sole-Mari, Tomás Aquino·Jun 9, 2026SaveLearn
Far-field approximations for multi-timescale microswimmers near a boundaryHydrodynamic interactions with boundaries can significantly affect the trajectories of microscale swimmers. In simple swimmer models, a common assumption is that swimmer shape remains constant,…Sara Drummond-Curtis, Mohit P. Dalwadi, Benjamin J. Walker·Jun 9, 2026SaveLearn
Baroclinic wave dynamics in the Ekman-free rotating rectangular annulus with localized forced plumeWe report numerical simulations of a rotating rectangular annulus that isolates the Ekman-free bulk of the cylindrical baroclinic annulus, subjected to bi-directional temperature gradients imposed by…Shivam Swarnakar, Ayan Kumar Banerjee, Sridhar Balasubramanian et al.·Jun 9, 2026SaveLearn
Rotation-to-translation conversion by geometric asymmetry in viscoelastic fluidsMicroscale locomotion in Newtonian fluids is constrained by kinematic reversibility. Here we show that viscoelasticity provides a distinct route: an achiral fore-aft asymmetric body rotating in a…Takuya Kobayashi, Hiroki Kitano, Ryoichi Yamamoto·Jun 9, 2026SaveLearn
Nonspherical gas bubble dynamics in viscoelastic soft materialsNonspherical gas bubble dynamics in viscoelastic materials influence the stress transmission and energy dissipation of their surroundings and are difficult to predict. Their accurate prediction is…Sawyer Remillard, Mauro Rodriguez·Jun 9, 2026SaveLearn
Designing single-layer PDMS devices for micron to millimeter-scale deformationsThe elasticity of PDMS has played a central role in advancing important microfluidic technologies, ranging from early valves to sophisticated organ-on-a-chip systems. However, most deformable…Leon V. Gebhard, Alexandre S. Avaro, Gabriel Amselem et al.·Jun 9, 2026SaveLearn
Dynamical hysteresis in the dissipation in turbulent flowsWe present evidence of the dynamical hysteretic nature of dissipation in unsteady turbulent flows. Wind tunnel experiments and direct numerical simulations in oscillating flows show that, at…M. Ahmad, P. D. Mininni, M. Obligado et al.·Jun 9, 2026SaveLearn
Effect of a magnetostatic field on laminar premixed hydrogen-air flamesMagnetic fields have shown potential to affect flame characteristics; however, the mechanisms of interaction are not fully understood. This paper investigates the effect of magnetic fields on…Tristan Lapaire, Sofiane Al Kassar, Antonio Attili et al.·Jun 8, 2026SaveLearn
Geometry-Aware Anisotropic Boundary Correction for Aerodynamic SimulationAerodynamic simulation is a key component of engineering shape design, where core quantities such as the surface pressure coefficient strongly depend on flow dynamics near solid boundaries. Neural…Xin Zhang, Yipeng Huang, Shu Jiang et al.·Jun 8, 2026SaveLearn
Scaling laws and local enhancements of buoyancy flux in stratified turbulent flowsIn the presence of stratification, turbulent flows exhibit intermittency not only at small scales but also at large scales, comparable to the mean flow, as observed in the atmosphere and oceans. We…Gyeongseob Song, Fabio Feraco, Raffaele Marino et al.·Jun 8, 2026SaveLearn
No need to stay positive: a practical approach to direct numerical simulations of elastic turbulenceSuccessfully performing direct numerical simulations of polymeric flows remains a major challenge in computational fluid mechanics. In addition to the velocity field, such simulations must resolve…Damiano Capocci, Moritz Linkmann, Alexander Morozov·Jun 8, 2026SaveLearn
Studies of PHP with CASCO code and its experimental validationWe discuss here two major issues related to the steady functioning of the pulsating (oscillating) heat pipe (PHP): the effect of the surface properties and stopovers. They are studied with the CASCO…Vadim Nikolayev, Slaven Bajić, Guillaume Boudier et al.·Jun 8, 2026SaveLearn
On the spatial statistics of free-surface turbulence and the complementarity of 'dimples' and 'scars'The air--water interface governs the exchange of heat and gas between natural water bodies and their surrounding environment. Turbulence beneath the free surface imprints characteristic features:…Daniel R. Kjellevold, Jørgen R. Aarnes, Omer M. Babiker et al.·Jun 8, 2026SaveLearn
A Hybrid Generative Reduced-Order Model for the Minimal Flow UnitA data-driven reduced-order modelling framework is proposed for wall-bounded turbulent flows to forecast the intermittent near-wall dynamics over extended time horizons from sparse sensor…Niccolò Tonioni, Lionel Agostini, Marcial Sanchis-Agudo et al.·Jun 8, 2026SaveLearn
Traveling surface wave propagation on shallow water with variable bathymetry and currentEnergy transmission over long distances by waves is a key mechanism for many natural processes. This possibility arises when an inhomogeneous medium is arranged in such a manner that it enables a…Semyon Churilov·Jun 8, 2026SaveLearn
Tuning Cross-stream Lift in Viscoelastic Shear: Distinct Hydrodynamic Signatures of Force-bearing and Force-free MechanismsWe investigate the lift and drag corrections acting on a particle suspended in a planar viscoelastic shear flow when the particle is tuned to translate relative to the flow by an external mechanism.…Soumyodeep Chowdhury, Kushagra Tiwari, Jitendra Dhakar et al.·Jun 8, 2026SaveLearn