Structure tensor Reynolds-averaged Navier-Stokes turbulence models with equivariant neural networksAccurate and generalizable Reynolds-averaged Navier-Stokes (RANS) models for turbulent flows rely on effective closures, but currently available closures are notoriously unreliable. Kassinos et al.…Aaron Miller, Sahil Kommalapati, Robert Moser et al.·Nov 12, 2025SaveLearn
Novel mixed approximate deconvolution subgrid-scale models for large-eddy simulationApproximate Deconvolution (AD) has emerged as a promising closure for Large-Eddy Simulation (LES) in complex multi-physics flows, where the conventional pure Dynamic Eddy-Viscosity (DEV) models…Ehsan Amani, Mohammad Bagher Molaei, Morteza Ghorbani·Nov 12, 2025SaveLearn
Dynamic subgrid-scale LES model for turbulent non-Newtonian flows: A priori and a posteriori analyses of Burgers turbulenceLarge Eddy Simulation (LES) of turbulent non-Newtonian flows involves two additional closures, namely the Non-Newtonian SubGrid-Scale (NNSGS) stress tensor and filtered viscosity. Here, dynamic…E. Amani, A. Ahmadpour, M. J. Aghajari·Nov 12, 2025SaveLearn
Conservation of magnetic-helicity fluctuations due to spatial decorrelation of fluxes in decaying MHD turbulenceHosking & Schekochihin (2021, Phys. Rev. X 11, 041005) have proposed that statistically isotropic decaying MHD turbulence without net magnetic helicity conserves the mean square fluctuation level of…Justin Kin Jun Hew, David N. Hosking, Christoph Federrath et al.·Nov 12, 2025SaveLearn
Local chemotactic response of Escherichia coli in fluid and near surfacesBacteria can adjust their swimming behaviour in response to chemical variations, a phenomenon known as chemotaxis. This process is characterised by a drift velocity that depends non-linearly on the…Adam Gargasson, Julien Bouvard, Carine Douarche et al.·Nov 12, 2025SaveLearn
Diffuse-interface modeling and simulation of the freezing of binary fluids with the Marangoni effectThis paper proposes a diffuse-interface model for simulating gas-liquid-solid multiphase flows involving solid-liquid phase change, solute transport, and the Marangoni effect. In this model, a…Jiangxu Huang, Zhenhua Chai, Xi Liu et al.·Nov 12, 2025SaveLearn
Active bacterial pattern formation in evaporating dropletsBacteria living on surfaces are often confined to droplets. When these droplets evaporate, the motion of the liquid-air interface and the associated internal capillary flow confine the bacteria. Here…Twan J. S. Wilting, Adriana W. B. P. Reijnier, Michiel H. M. Brebels et al.·Nov 12, 2025SaveLearn
Effect of submerged vegetation on water surface geometry and air-water momentum transferUnderstanding how submerged vegetation modifies the water surface is crucial for modeling momentum exchange between shallow waters and the atmosphere. In particular, quantifying its impact on the…Giulio Foggi Rota, Alessandro Chiarini, Marco Edoardo Rosti·Nov 12, 2025SaveLearn
Prediction of bypass transition in hypersonic blunt-plate boundary layers subject to noisy conditionsIn hypersonic boundary-layer flows over blunt bodies, laminar-turbulent transition exhibits two distinct regimes: for small nose radii, increased bluntness delays transition; beyond a critical…Qinyang Song, Ming Dong, Lei Zhao·Nov 12, 2025SaveLearn
Numerical Investigation of Boundary-Layer Height and Actuation-Parameter Effects of a Circular Synthetic Jet Actuator in CrossflowThree-dimensional unsteady numerical simulations are performed to investigate the effects of blowing ratio CB (0.85 < Uj/U∞ < 1.7), stroke ratio L+ ($10.6 < Uj…Howard Ho, Ebenezer Essel, Pierre Sullivan·Nov 12, 2025SaveLearn
Physics-based localization methodology for Data Assimilation by Ensemble Kalman FilterA physics-based methodology for the determination of the localization function for the Ensemble Kalman Filter (EnKF) is proposed. The spatial features of such function evolve dynamically over time…Sarp Er, Marcello Meldi·Nov 11, 2025SaveLearn
Patient-Scale Blood Flow Analysis in Artery Stent Implantation via Smoothed-Particle HydrodynamicsA unified Smoothed Particle Hydrodynamics (SPH) simulation framework for coronary stent implantation is developed, which unifies weakly compressible hemodynamics, Neo-Hookean solids, and stent-artery…Jinlei Zhou, Sukang Peng, Yongchuan Yu et al.·Nov 11, 2025SaveLearn
A consistent δ-Plus-ULPH model towards higher accuracy and lower numerical dissipation with fewer neighboring particlesThis paper proposes a novel consistent δ+- Updated Lagrangian Particle Hydrodynamics (ULPH) model. Although the Smoothed Particle Hydrodynamics (SPH) model has gained recognized achievements,…Shi-Xian Wu, Peng-Nan Sun, Xiao-Ting Huang et al.·Nov 11, 2025SaveLearn
Wall-Modeled Large-Eddy Simulation of Turbulent Non-Newtonian Power-Law Fluid FlowsFor high-fidelity predictions of turbulent flows in complex practical engineering problems, the Wall-Modeled (WM) Large-Eddy Simulation (LES) has aroused great interest. In the present study, we…Mohammad Taghvaei, Ehsan Amani·Nov 11, 2025SaveLearn
Coarse-graining Algorithms for the Eulerian-Lagrangian Simulation of Particle-laden FlowsIn the present article, novel Coarse-Graining (CG) algorithms for the Eulerian-Lagrangian (EL) simulation of particle-laden flows are proposed. These include different variants of Reproducing Kernel…H. Eshraghi, E. Amani, M. Saffar-Avval·Nov 11, 2025SaveLearn
Numerical Methods for a 2D "Bad" Boussinesq Equation: RK4, Strang Splitting, and High-frequency Fourier ModesNumerical methods for a two-dimensional ``bad'' Boussinesq equation: utt = uxx + uxxxx + uyy - 3 (u2)xx are presented with good accuracy. The methods mainly depend on…Arief Anbiya·Nov 11, 2025SaveLearn
Stochastic Backscatter for Grey-Area Mitigation in Hybrid RANS-LES SimulationsA scale-resolving simulation methodology that includes stochastic energy backscatter is incorporated into a proprietary block-structured compressible flow solver. Particular attention is devoted to…Angelo Passariello, Pietro Catalano, Carmine De Lucia et al.·Nov 11, 2025SaveLearn
Lagrangian chaos and the enstrophy cascade in Ekman-Navier-Stokes two-dimensional turbulenceTwo-dimensional turbulence with linear (Ekman) friction exhibits spectral properties that deviate from the classical Kraichnan prediction for the direct enstrophy cascade. In particular, for…Francesco Michele Ventrella, Victor de Jesus Valadão, Guido Boffetta et al.·Nov 11, 2025SaveLearn
Soap Film Drainage Using a Centrifugal Thin Film BalanceSurface bubbles are an abundant source of aerosols, with important implications for climate processes. In this context, we investigate the stability and thinning dynamics of soap films under…Antoine Monier, Kévin Gutierrez, Cyrille Claudet et al.·Nov 11, 2025SaveLearn
Comments on the paper `Modelling and nonclassical symmetry analysis of a complex porous media flow in a dilating channel'The Comments are devoted to the recently published paper 'Modelling and nonclassical symmetry analysis of a complex porous media flow in a dilating channel' (Physica D. 481 (2025) 134834), in which a…Roman Cherniha·Nov 11, 2025SaveLearn
Wave-crests around obstacles in odd viscous liquidsThe values of liquid odd-viscosity coefficients remain largely unknown, with only a single experimental measurement reported to date [Nature Physics 15, 1188 (2019)]. In this work, inspired by the…E. Kirkinis, A. Levchenko·Nov 11, 2025SaveLearn
Resonant spectral cascade in Womersley flow triggered by arterial geometryAge-related arterial remodeling is dominated by progressive loss of elastic-fiber function and concomitant stiffening, and in many vascular beds it is also accompanied by measurable geometric…Khalid M. Saqr·Nov 10, 2025SaveLearn
Shocks Under Control: Taming Transonic Compressible Flow over an RAE2822 Airfoil with Deep Reinforcement LearningActive flow control of compressible transonic shock-boundary layer interactions over a two-dimensional RAE2822 airfoil at Re = 50,000 is investigated using deep reinforcement learning (DRL). The flow…Trishit Mondal, Ricardo Vinuesa, Ameya D. Jagtap·Nov 10, 2025SaveLearn
Modeling Unsteady Aircraft Aerodynamics Using Lorenz Attractor: A Reduced-Order Approach for Wing RockThis paper presents a novel modeling approach for unsteady aircraft airflow, leveraging the Lorenz attractor framework. The proposed model is based on the force distribution exerted by a…Marcel Menner, Eugene Lavretsky·Nov 10, 2025SaveLearn
Gravity current propagating against constant and pulsating counter flowsThis paper describes the evolution of two-dimensional (2D) gravity currents that flow against a horizontally uniform laminar pulsating flow. We study the effect of opposing mean flow amplitude and…Cem Bingol, Matias Duran-Matute, Eckart Meiburg et al.·Nov 10, 2025SaveLearn