Physics of Fluids
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Related Articles from SNS
Self-Evolving Scientific Agent Discovers Generalizable Physically-Reasoned Fluid Control
Announce Type: cross Abstract: While data-intensive deep reinforcement learning can optimize complex control policies, scientific discovery in physical systems fundamentally requires an interpretable chain of reasoning that connects physical evidence to structured control architectures. Here, we present a self-evolving scientific-agent workflow, driven by large language models and iterative code generation, that automates controller construction while preserving strict interpretability and...
Self-Evolving Scientific Agent Discovers Generalizable Physically-Reasoned Fluid Control
Announce Type: new Abstract: While data-intensive deep reinforcement learning can optimize complex control policies, scientific discovery in physical systems fundamentally requires an interpretable chain of reasoning that connects physical evidence to structured control architectures. Here, we present a self-evolving scientific-agent workflow, driven by large language models and iterative code generation, that automates controller construction while preserving strict interpretability and...
MPMWorlds: Material-Point-Method Simulations for Inferring and Extrapolating Physical Dynamics
Announce Type: new Abstract: To study the ability to infer physical dynamics from videos and extrapolate them forward in time, we assemble a dataset of 2D Material Point Method (MPM) physical simulations covering rich physical phenomena such as deformable objects, fluids, kinetic objects, and emitters. We study code generation and video diffusion approaches on this dataset, identifying their strengths and weaknesses by varying the amount of physically relevant side information. The code...
The effect of a pressure-dependent viscosity on the viscous scraper problem
Physics > Fluid Dynamics [Submitted on 3 Jun 2026] Title:The effect of a pressure-dependent viscosity on the viscous scraper problem View PDF HTML (experimental)Abstract:The 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 scraper (i.e., a drag in) problem and the reverse scraper (i.e., a drag out) problem.
Exponential thermalisation of viscous fluids on negatively curved manifolds
arXiv:2606.02286v1 Announce Type: cross Abstract: The deterministic incompressible Navier-Stokes equations are physically incomplete: any viscous fluid at finite temperature must exhibit thermal fluctuations whose form is dictated by the fluctuation-dissipation relation. We formulate the stochastic Navier-Stokes equations with the kinematically selected deformation Laplacian on compact Riemannian manifolds with strictly negative Ricci curvature. The fluctuation-dissipation relation, derived...
Schrodinger dynamics and Berry phase of undulatory locomotion
Announce Type: cross Abstract: Spectral mode representations play an essential role in various areas of physics, from quantum mechanics to fluid turbulence, but they are not yet extensively used to characterize and describe the behavioral dynamics of living systems. Here, we show that mode-based linear models inferred from experimental live-imaging data can provide an accurate low-dimensional description of undulatory locomotion in worms, centipedes, robots, and snakes. By incorporating...
Water-wave tweezers steer tiny 'surfers' without touching them
Water-wave tweezers steer tiny 'surfers' without touching them Stephanie Baum Scientific Editor Robert Egan Associate Editor Summer brings with it the sight of surfers moving seamlessly across wave crests, with ocean waters carrying them along coastlines. A team of scientists has now created a similar phenomenon—with small objects rather than surfers—that can be controlled by humans rather than by nature. Through a series of experiments on a replicated mini-beach, NYU researchers show how...
Violent rocket particles could reshape future spacecraft design
Violent rocket particles could reshape future spacecraft design Stephanie Baum Scientific Editor Andrew Zinin Lead Editor When rockets fire into space, the insides of their engines become an extreme environment where temperatures soar and tiny particles are thrown around at hypersonic speeds. These particles behave in ways that break long-held assumptions, according to new research that could help improve the durability, safety and performance of future space and defense technologies. The...
Many Body in General Relativity: A thermal equivalence principle
Physics > General Physics [Submitted on 31 May 2026] Title:Many Body in General Relativity: A thermal equivalence principle View PDF HTML (experimental)Abstract:We review the physics of many bodies in the context of general relativity. Starting from the stress energy tensor for one body, for a swarm of bodies, for a perfect fluid, we review relativistic hydrodynamics, kinetic theory, and statistical physics of $N$ identical bodies.
Physics-informed, boundary-constrained Gaussian process regression for the reconstruction of fluid flow fields
arXiv:2507.17582v4 Announce Type: replace Abstract: Gaussian process regression techniques have been used in fluid mechanics for the reconstruction of flow fields from a reduction-of-dimension perspective. A main ingredient in this setting is the construction of adapted covariance functions, or kernels, to obtain such estimates. In this paper, we present a general method for constraining a prescribed Gaussian process on an arbitrary compact set.