A high-order Fourier Continuation (FC)-based spectral incompressible Smoothed Particle Hydrodynamics (ISPH) scheme for general boundary conditions in wall-bounded domainsIn this paper, a high-order Fourier Continuation (FC) algorithm is introduced into the spectral smoothed particle hydrodynamics (SPH) scheme to simulate the wall-bounded incompressible flows. This…Meixuan Lin, Georgios Fourtakas, Benedict D. Rogers·Jun 4, 2026SaveLearn
Flapping instability of elastic disks in Stokes flowsFluid-structure interactions at low Reynolds number can lead to a much richer phenomenology than previously expected. Here, we study the dynamics of a freely suspended, thin elastic disk in a shear…Yijiang Yu, Hugo Perrin, Michael D. Graham et al.·Jun 4, 2026SaveLearn
Deep reinforcement learning with spatial and temporal awareness for active boundary control of buoyancy-driven convectionDeep reinforcement learning (DRL) applied to thermal convection control consistently produces degenerate actuation: wall-temperature policies whose outputs are saturated, pseudo-random, or spatially…Giorgio Maria Cavallazzi, Miguel Pérez Cuadrado, Alfredo Pinelli·Jun 4, 2026SaveLearn
Multiple critical Froude numbers for the centrifugal effects on heat transport in rotating Rayleigh-Bénard convectionThe influence of centrifugal effects in rotating Rayleigh-Benard convection is investigated using direct numerical simulations. We find that the Nusselt number decreases beyond a critical Froude…Zhi-Cong Kang, Guang-Yu Ding, Lu Zhang et al.·Jun 4, 2026SaveLearn
High-order thermodynamic nonequilibrium in three-dimensional compressible flows: Kinetic moment closure and multigradient couplingHigh-order thermodynamic nonequilibrium (TNE) in three-dimensional compressible flows reflects the breakdown of low-order kinetic moment closure in strong-gradient regions. Using Chapman-Enskog…Huilin Lai, Qinghong Guo, Yanbiao Gan et al.·Jun 4, 2026SaveLearn
Sub-Kolmogorov Intermittency and Multifractal Dissipation in Multiphase TurbulenceMultiphase turbulence displays stronger intermittency than its single-phase counterpart, yet the origin and geometrical organization of its most intense small-scale fluctuations remain poorly…Marco Crialesi-Esposito, Alienor Riviere, Sergio Chibbaro·Jun 4, 2026SaveLearn
Stochastic Multiscale Reconstruction of Lagrangian Turbulence via Guided Diffusion ModelsLagrangian turbulence is characterized by intermittent, fat-tailed fluctuations and nontrivial correlations across temporal scales, making a quantitative description of its full multiscale…Conghui Wang, Tianyi Li, Luca Biferale et al.·Jun 4, 2026SaveLearn
Topographic shielding of coastal zones and infrastructure against high tideHigh tides are a threat to damage the coast and onshore structures. To investigate mitigation strategies, we simulate waves and a flood-like situation from two-dimensional (2D) dam-break flow with a…P. C. Harisankar, Tapas Sil·Jun 4, 2026SaveLearn
Role of boundary conditions on dam-break flow across an obstacle and controlling damage of structuresWe studied dam-break flow in the smoothed particle hydrodynamics framework using periodic boundary condition (PBC) instead of usually employed rigid wall boundary condition (WBC) and assessed the…P. C. Harisankar, Tapas Sil·Jun 4, 2026SaveLearn
Stretching by outer eddies sets the turbulent breakup rate of drops and bubblesFragmentation of drops and bubbles in turbulence controls interfacial area generation, mixing, and transport in environmental and engineering flows. The nonlinear coupling between interfacial and…Daniel Morón, Ianto Cannon, Alberto Vela-Martín et al.·Jun 4, 2026SaveLearn
Beyond Stokes drift -- Lagrangian transport in evolving gravity wavesFinite-amplitude gravity waves at the air-water interface induce net fluid and particle transport, known as Stokes drift. While this mechanism is well understood for steady waves, transport under…Tatsuo Izawa, Giulio Foggi Rota, Alessandro Chiarini et al.·Jun 4, 2026SaveLearn
A Solid-Based Approach for Modeling Simple Yield-Stress Fluids: Rheological Transitions, Overshoot and RelaxationYield-stress fluids are ubiquitous and encountered in diverse fields ranging from natural muddy flows to industrial applications such as secondary battery electrode slurries and direct ink writing.…Jehyeok Choi, Ju Min Kim, Kwang Soo Cho·Jun 4, 2026SaveLearn
Meltwater transport and mixing layer growth near the ice--ocean interfaceIce melting into saline water plays a fundamental role in the dynamics near the ice-ocean interface in polar oceans. The physics of ice melting involves a non-trivial interplay between thermodynamics…Sofía Allende, Louis-Alexandre Couston, Simon Thalabard et al.·Jun 4, 2026SaveLearn
Effects of spatially localised pressure gradient histories on recovery of turbulent boundary layersHot-wire anemometry is used to investigate the recovery of smooth-wall turbulent boundary layers from spatially localised (i.e. impulsive) pressure gradient history (PGH) effects. Measurements are…Zefanya Bramantasaputra, Dea Daniella Wangsawijaya, Bharathram Ganapathisubramani·Jun 4, 2026SaveLearn
Generalized Forcing Method: Generation of Diverse Data for Training Linear Transport PDE Closure ModelsData-driven closure modeling for transport partial differential equations requires training data that are accurate, affordable, diverse, and directly tailored to the target closure fields. We develop…Wenyuan Xue, Ali Mani·Jun 3, 2026SaveLearn
The effect of a pressure-dependent viscosity on the viscous scraper problemThe effect of a pressure-dependent viscosity on the behaviour of the viscous scraper problem is investigated. In particular, it is found that the effect is qualitatively different for the classical…Fiaz Ur Rehman, Stephen K. Wilson·Jun 3, 2026SaveLearn
Scale-dependent force balance governs transition to the geostrophic regime in liquid metal rotating convectionRotating convection in low-Prandtl-number liquid metal drives dynamo action in the Earth's outer core and is central to planetary interior dynamics. It has been proposed that flow regime…Shao-Peng Yang, Lin Sun, Guang-Yu Ding et al.·Jun 3, 2026SaveLearn
Drag and Yielding of Rotating Bodies in Yield-Stress FluidsWe investigate the settling dynamics of rotating objects in a yield stress fluid by combining controlled experiments with numerical simulations. Experiments were conducted using cylinders and spheres…Farshad Nazari, Akash Mittal, Kourosh Shoele et al.·Jun 3, 2026SaveLearn
Energetics, shearing and pumping efficiency of propagating contractions over villi-patterned wallIntestinal villi undergo pendular-wave motility -- an active, propagating tissue motion driven by underlying longitudinal muscles. This motility drives irreversible, counter-wave fluid pumping, akin…Rohan Vernekar, Claude Loverdo, Stéphane Tanguy et al.·Jun 3, 2026SaveLearn
Shear-driven dynamics of surfactant-laden droplets on rough substratesThe depinning of liquid droplets due to flow of a surrounding immiscible fluid plays a crucial role in applications such as enhanced oil recovery, surface cleaning, and crossflow emulsification.…Ninad Vinayak Mhatre, Satish Kumar·Jun 3, 2026SaveLearn
Preferential orientation of slender elastic floaters in gravity wavesSlender floaters drifting in propagating gravity waves slowly rotate towards a preferential state of orientation with respect to the angle of incidence. This angular drift arises from a wave-induced,…Wietze Herreman, Basile Dhote, Frederic Moisy·Jun 3, 2026SaveLearn
Effective permeabilities for flow through anisotropic microscopic geometriesThis work develops a computational and theoretical framework for determining effective permeabilities in anisotropic microscopic geometries containing dense, fibre-like obstacles, motivated by the…Loïc Balazi, Fabian Holzberger, Stephan B. Lunowa et al.·Jun 3, 2026SaveLearn
Surrogate normal-forms for the numerical bifurcation and stability analysis of navier-stokes flows via machine learningInspired by the Equation-Free paradigm, we propose an ``embed-learn-lift'' framework for constructing minimal-dimensional surrogate ROMs for the numerical analysis of high-fidelity…Alessandro Della Pia, Dimitrios G. Patsatzis, Gianluigi Rozza et al.·Jun 3, 2026SaveLearn
Uncovering Turbulent Dynamics in Stenotic Flows from 4D-flow MRI Measurements via Resolvent Analysis and Data AssimilationThis study presents a hybrid experimental and computational framework that couples in vitro 4D phase-contrast magnetic resonance imaging (4D-flow MRI) measurements with data assimilation and linear…Alexandre Villié, Simon Demange, Hannes Dillinger et al.·Jun 2, 2026SaveLearn
Wave-mean decomposition of scale-dependent kinetic energy from surface driftersSeparating waves and mean flows is a fundamental challenge in ocean dynamics. Lagrangian filtering of passive-tracer time series into high-frequency wave and low-frequency mean-flow components…Han Wang, Dhruv Balwada, Jin-Han Xie·Jun 2, 2026SaveLearn