Acoustic radiation force on a liquid particle in a standing surface acoustic wave fieldWe develop a theory for the acoustic radiation force on a liquid particle in a 2D standing-wave field beyond the Rayleigh limit. The theory is valid for any frequency, includes the traveling-wave…Shuo Huang, Hemin Pan, Daniel Ahmed et al.·May 26, 2026SaveLearn
Asymmetric particle transport in turbulent flows within concentric annular ductsWe present the first direct numerical simulations of particle-laden turbulent flow in concentric annuli to investigate the effects of transverse curvature over a range of Stokes numbers. The results…Taiyang Wang, Chi Zhang, Yaomin Zhao·May 26, 2026SaveLearn
Supervised machine learning of compressible flow past a rotating cylinderHigh-fidelity numerical simulations of compressible flow past a rapidly rotating cylinder are used to investigate the evolution of aerodynamic loads and flow instability over a wide range of Reynolds…Sanjeev Kumar, Santosh Kumar, Aditi Sengupta·May 26, 2026SaveLearn
Sub-surface turbulence and free-surface featuresMany turbulent flows encountered in nature -- seas, oceans and rivers -- are bounded by a deformable free surface. A question that remained to be fully explored is to what extent the underlying…Amélie Ferran, Ali Semati, Anaïs Rouaud et al.·May 26, 2026SaveLearn
Vibroacoustic Underwater Noise from Fixed and Floating Offshore Wind TurbinesAnthropogenic underwater noise from offshore wind turbines is a growing environmental concern, particularly with the large-scale deployment of bottom-fixed and floating devices. This study presents a…Raúl Sanz-Ramírez, Martín de Frutos, Guillén Campaña-Alonso et al.·May 26, 2026SaveLearn
A total-Lagrangian vectorial lattice Boltzmann method for finite-strain hyperelastic dynamicsInspired by the vectorial lattice Boltzmann method for linear elastodynamics boolakee2025linear, we construct a total-Lagrangian vectorial lattice Boltzmann formulation for two-dimensional…Jingsen Feng, Xu Chu·May 26, 2026SaveLearn
A Compression-Directional Entropic Stress Method for Shock-Regularized Compressible FlowWe introduce the Compression-Directional Entropic Stress (CoDeS) method inspired by information geometric regularization. CoDeS replaces scalar multidimensional entropic pressure with a tensor stress…Bonan Xu, Chihyung Wen, Peixu Guo·May 26, 2026SaveLearn
Pressure-equilibrium-preserving and fully conservative discretization of compressible flow equations for real and thermally perfect gasesNumerical simulations of compressible real-fluid flows are notoriously plagued by spurious pressure oscillations arising in regions of abrupt flow variations. As a possible remedy, several numerical…Gennaro Coppola, Alessandro Aiello, Carlo De Michele·May 26, 2026SaveLearn
AI-based separation of turbulence from coherent background flows in decaying hydrodynamic turbulenceSeparating turbulent fluctuations from coherent large-scale background flows is a longstanding challenge in the analysis of numerical simulations and astronomical observations. Traditional approaches…Ji-Hoon Ha, Elena S. Volnova·May 26, 2026SaveLearn
A gauge identity for interscale transfer in inhomogeneous turbulenceLocal interscale energy transfer in Large Eddy Simulation (LES) is typically diagnosed using the subgrid-scale (SGS) production, ΠSGS. In this work, an exact algebraic gauge identity is derived,…Khalid M. Saqr·May 26, 2026SaveLearn
Perturbative anomalous exponents from Kolmogorov multipliersWe introduce a perturbative framework for anomalous scaling in turbulent transport based on multiplier statistics, rather than zero-mode calculations. We illustrate the approach using a shell model…Alexei A. Mailybaev, Simon Thalabard·May 25, 2026SaveLearn
Accelerating Bayesian inverse design in computational fluid dynamics using neural operatorsBayesian inverse design provides a principled framework for inferring aerodynamic geometries from sparse flow observations while quantifying uncertainty. However, its practical use in computational…Bipin Tiwari, Omer San·May 25, 2026SaveLearn
Transformer-based Neural Operators for 3D Wind Field Prediction over Complex Mountainous TerrainAccurate prediction of three-dimensional (3D) wind fields over complex mountainous terrain is essential for renewable energy deployment and regional weather modeling. Traditional computational fluid…Yujia Zhang, Jiaxi Qi, Ruiyan Chen et al.·May 25, 2026SaveLearn
A semi-implicit two dimensional solver for a covariant formulation of the shallow water equationsIn this paper we combine a flexible covariant formulation of the shallow water equations with the semi-implicit numerical scheme developed over the years by Casulli and collaborators. After adopting…Maurizio Tavelli, Olindo Zanotti·May 25, 2026SaveLearn
A High-Performance, Cross-Platform Open-Source Solver for the Incompressible Navier-Stokes Equations in FEALPyTo address the dual challenges of performance portability across heterogeneous hardware and the high usability barriers of conventional computational fluid dynamics (CFD) software, this paper…Wang Pengxiang, Huang Xianbo, Peng Li et al.·May 25, 2026SaveLearn
Quantum field approach to relativistic turbulenceThe goal of this work is apply field theory methods to discuss turbulence in relativistic real fluids. We shalltake as representtive model an Israel-Stewart framework, where the conservation laws for…Esteban Calzetta·May 25, 2026SaveLearn
Lagrangian single-particle, multi-particle and topological analyses in turbulent Rayleigh-Bénard convectionWe present three-dimensional direct numerical simulations of turbulent Rayleigh-Bénard convection (RBC) in the Lagrangian frame of reference for Rayleigh numbers 105 ≤ Ra ≤ 1010 and a…Matti Ettel, Roshan J. Samuel, Michael Chertkov et al.·May 25, 2026SaveLearn
Quantitative Evaluation of Forward and Backward Scattering in Isotropic Turbulence via Hänggi--Klimontovich and Itô Stochastic ProcessesThis work evaluates the magnitude of the turbulent energy cascade in terms of forward and backward scattering by modeling the "stretch and fold" mechanism through a drift-free…Nicola de Divitiis·May 25, 2026SaveLearn
Critical Reynolds Number as a Topological Phase Transition in Adaptive Fractional HydrodynamicsWe present a theoretical framework that models the laminar-turbulent transition as a topological change in the dissipative operator. The order s of the fractional Laplacian is promoted from a fixed…Jose I. H. Lopez·May 25, 2026SaveLearn
Progressive Mixture-of-Experts with autoencoder routing for continual RANS turbulence modellingDeveloping Reynolds-averaged Navier-Stokes (RANS) turbulence models that remain accurate across diverse flow regimes is a long-standing challenge. In this work, we propose a novel framework, termed…Haoyu Ji, Yinhang Luo, Hanyu Zhou et al.·May 25, 2026SaveLearn
Experimental investigation relating free-surface features to sub-surface turbulenceTurbulent flows beneath a free surface play a central role in the Earth system, yet their coupling to observable surface features remains incompletely understood. Recent studies using Direct…Omer M. Babiker, Jørgen R. Aarnes, Ali Semati et al.·May 25, 2026SaveLearn
Fractal-based variable drag model for porous-media tree representationsAccurate representation of trees is essential for predictive urban micrometeorological simulations, but explicitly resolving detailed tree geometry is computationally prohibitive. Trees are therefore…Takumi Tokiwa, Yuwei Yin, Ryo Onishi·May 24, 2026SaveLearn
Time-Symmetry of Lagrangian Coherent Structures in Active TurbulenceActive flows are central to mixing and transport across living systems. While Newtonian fluids remain laminar, diffusive and predictable at the microscale, living fluids like dense bacterial…Suvarchalanjan Bellaganti, Amal Manoharan, Kirti Kashyap et al.·May 24, 2026SaveLearn
A real-variable unidirectional reduction of deep-water gravity wavesA unidirectional reduction of the deep-water surface gravity wave problem is derived in physical space using real variables. By employing a near-identity canonical transformation, cubic interactions…Päivo Simson·May 24, 2026SaveLearn
Geometry, elasticity, and activity in the transport of self-propelled filaments in turbulenceWe investigate the transport of elastic active filaments in two-dimensional turbulence, focusing on how propulsion geometry and elasticity determine vortex trapping and transport. Using a bead-spring…Kunal Kumar, Aliv Sahoo, Rahul Kumar Singh et al.·May 24, 2026SaveLearn