Dynamics of Vortex Clusters on a TorusWe investigate the collective dynamics of multivortex assemblies in a two dimensional (2D) toroidal fluid film of distinct curvature and topology. The incompressible and inviscid nature of the fluid…Aswathy K R, Udaya Maurya, Surya Teja Gavva et al.·Jun 16, 2025SaveLearn
Three-dimensional velocity gradient statistics in a mesoscale convection laboratory experimentWe present three-dimensional velocity gradient statistics from Rayleigh--B\'enard convection experiments in a horizontally extended cell of aspect ratio 25, a paradigm for mesoscale convection. The…Prafulla P. Shevkar, Roshan J. Samuel, Christian Cierpka et al.·Jun 16, 2025SaveLearn
A fluctuating lattice Boltzmann method for viscoelastic fluid flowsThis study introduces a novel fluctuating lattice Boltzmann (LB) method for simulating viscoelastic fluid flows governed by the Oldroyd-B model. In contrast to conventional LB approaches that…Juanyong Wang, Xinyue Liu, Lei Wang et al.·Jun 16, 2025SaveLearn
Viscoplastic flows in narrow channels: Herschel-Bulkley models versus its regularizationsWe investigated the two-dimensional flows of a viscoplastic fluid in symmetric channels with impermeable walls under no-slip boundary conditions. As response functions for the Cauchy stress tensor of…Benedetta Calusi, Angiolo Farina, Lorenzo Fusi et al.·Jun 15, 2025SaveLearn
Fluid-induced snap-through instability of spherical shellsWe study the snapping instability of a spherical elastic shell induced by a viscous flow, the umbrella flipping problem when life is at low Reynolds numbers. We combine precision desktop-scale…Pier Giuseppe Ledda, Hemanshul Garg, Vitus Østergaard-Clausen et al.·Jun 13, 2025SaveLearn
The Three-Dimensional Velocity Field of Kinesin-Driven Microtubules in Torroidal ChannelsWe study two regimes of flow in multiple three-dimensional toroidal channels by tracking the fluorescent spherical particles in the kinesin-driven microtubule systems: ``chaotic'' flow and…Yi Fan, Kenneth Breuer·Jun 13, 2025SaveLearn
Statistical State Dynamics based study of turbulence in Eady fronts. Part 1. InstabilityThe streamwise roll and streak structure (RSS) is prominent in observations of the planetary boundary layer in the atmosphere and ocean and in unstratified wall-bounded shear flows. Although the RSS…Eojin Kim, Brian F. Farrell·Jun 13, 2025SaveLearn
Achieving Optimal Locomotion using Self-Generated WavesAn oscillating body floating at the water surface produces a wave-field of self-generated waves. When the oscillation induces a difference in fore-aft wave amplitude squared, these self-generated…D. O'Donovan, M. D. Bustamante, O. Devauchelle et al.·Jun 13, 2025SaveLearn
An approximate Riemann solver approach in Physics-Informed Neural Networks for hyperbolic conservation lawsThis study enhances the application of Physics-Informed Neural Networks (PINNs) for modeling discontinuous solutions in both hydrodynamics and relativistic hydrodynamics. Conventional PINNs, trained…Jorge F. Urbán, José A. Pons·Jun 13, 2025SaveLearn
Effect of converging shape of container on the velocity of impact-induced focused liquid jetWe investigated the effect of container shape on the behavior of the impact-induced focused liquid jets by dropping a converging-shaped container (e.g., Kjeldahl flask) partially filled with liquid…Hiroya Watanabe, Hiroaki Kusuno, Yoshiyuki Tagawa·Jun 13, 2025SaveLearn
Relationship between unpredictability and intermittency in shell models of turbulence and experimentsWe study the predictability of turbulent velocity signals using probabilistic analog-forecasting. Here, predictability is defined by the accuracy of forecasts and the associated uncertainties. We…Ewen Frogé, Carlos Granero-Belinchon, Stéphane G. Roux et al.·Jun 13, 2025SaveLearn
Phase-Field Modeling and Energy-Stable Schemes for Osmotic Flow through Semi-PermeableWe present a thermodynamically consistent phase-field model for simulating fluid transport across semi-permeable membranes, with a particular focus on osmotic pressure effects. The model extends the…Ruihan Guo, Jie Shen, Shixin Xu et al.·Jun 13, 2025SaveLearn
A Hamiltonian formulation for the motion of an active spheroidal particle suspended in laminar straight duct flowWe analyse a generalisation of Zöttl and Stark's model of active spherical particles [Phys. Rev. Lett. 108, 218104 (2012)] and prolate spheroidal particles [Eur. Phys. J. E 36(1), 4 (2013)]…Brendan Harding, Rahil N. Valani, Yvonne M. Stokes·Jun 13, 2025SaveLearn
A fast mesh-free boundary integral method for two-phase flow with soluble surfactantWe present an accurate and efficient boundary integral (BI) method for simulating the deformation of drops and bubbles in Stokes flow with soluble surfactant. Soluble surfactant advects and diffuses…Samantha G. Evans, Michael Siegel, Johannes Tausch et al.·Jun 12, 2025SaveLearn
A Gauge-Theoretic Action Principle for Viscous Incompressible FluidsWe propose a novel action principle for two dimensional incompressible fluid dynamics that naturally incorporates both vorticity and viscous dissipation via gauge field couplings. The action features…Rashmi R. Nayak·Jun 12, 2025SaveLearn
Experimental investigation of the flow rate--pressure drop relation of a viscoelastic Boger fluid in a deformable channelWe study the steady flow-induced deformation between an incompressible non-Newtonian fluid and a three-dimensional (3D) deformable channel. Specifically, we provide a comprehensive…SungGyu Chun, Ivan C. Christov, Jie Feng·Jun 12, 2025SaveLearn
Understanding the mismatch between in-vivo and in-silico rhinomanometryNumerical simulations and clinical measurements of nasal resistance are in quantitative disagreement. Bias introduced by the design of medical devices has not been considered until now as a possible…Marco Atzori, Gabriele Dini Ciacci, Maurizio Quadrio·Jun 12, 2025SaveLearn
OmniFluids: Physics Pre-trained Modeling of Fluid DynamicsComputational fluid dynamics (CFD) drives progress in numerous scientific and engineering fields, yet high-fidelity simulations remain computationally prohibitive. While machine learning approaches…Rui Zhang, Qi Meng, Han Wan et al.·Jun 12, 2025SaveLearn
Vortex-magnetic competition and regime transitions in antiparallel flux tubesVortex-magnetic interactions shape magnetohydrodynamic (MHD) turbulence, influencing energy transfer in astrophysical, geophysical, and industrial systems. On the Sun, granular-scale vortex flows…Weiyu Shen, Rodolfo Ostilla-Mónico, Xiaojue Zhu·Jun 12, 2025SaveLearn
Predicting air flow in calendered paper sheets from μ-CT data: combining physics with morphologyPredicting the macroscopic properties of thin fiber-based porous materials from their microscopic morphology remains challenging because of the structural heterogeneity of these materials. In this…Phillip Gräfensteiner, Andoni Rodriguez, Peter Leitl et al.·Jun 12, 2025SaveLearn
Nonlinear Dynamics of Wind-Drift Currents at Mid-LatitudesStarting from the Navier-Stokes equation in the f-plane approximation, we provide an exact and explicit solution of the governing equations at leading order for fluid flows in the upper layer of…Christian Puntini·Jun 12, 2025SaveLearn
Modelling of Counter-Current Gas-Liquid Annular Flow in a Vertical AnnulusAnnular two-phase flow involving upward-moving gas and downward-flowing liquid within a vertical annular geometry is a common configuration in various engineering systems. In such systems, accurately…Mahshid Firouzi·Jun 12, 2025SaveLearn
Aerodynamics and Aeroacoustics of da Vinci's Aerial ScrewLeonardo da Vinci's aerial screw, conceived in the 15th century, represents one of the earliest conceptualizations of lift-generating rotary flight. Despite its historical significance, the…Suryansh Prakhar, Jung-Hee Seo, Rajat Mittal·Jun 11, 2025SaveLearn
Attention on flow control: transformer-based reinforcement learning for lift regulation in highly disturbed flowsA linear flow control strategy designed for weak disturbances may not remain effective in sequences of strong disturbances due to nonlinear interactions, but it is sensible to leverage it for…Zhecheng Liu, Jeff D. Eldredge·Jun 11, 2025SaveLearn
Onsager Coefficients for Liquid Metal Flow in a Conduit under a Magnetic FieldWe analyze the flow of room and near room-temperature liquid metals in shallow, long rectangular conduits with two insulating and two perfectly conducting walls under a uniform magnetic field…Sindu E. Shanmugadas, Haim H. Bau·Jun 11, 2025SaveLearn