1011 papers
Fluid dynamics explores how liquids and gases move, shaping everything from weather patterns to the flow of blood through our veins. This field bridges the gap between abstract mathematical equations and the tangible forces that drive our physical world, offering insights into turbulence, aerodynamics, and fluid behavior in complex environments.
On Gist.Science, we process every new preprint in this category directly from arXiv to make cutting-edge research accessible to everyone. Each paper is transformed into a clear, plain-language overview alongside a detailed technical summary, ensuring both students and experts can grasp the latest findings without getting lost in dense jargon.
Below, you will find the most recent studies in fluid dynamics, curated and explained for a broader audience.
This study experimentally investigates the wake dynamics of a biorobotic fish using Particle Image Velocimetry to demonstrate how the Strouhal number governs the relationship between vortex ring characteristics, wake structure, and thrust production, ultimately establishing a universal model for undulatory underwater swimming.
This study reveals that liquid exchange from adjacent soap films significantly enlarges foam menisci in a flowing regime, leading to a new analytical model that incorporates this flux to accurately predict meniscus thickness and dynamics.
This study utilizes 23Na-MRI to experimentally demonstrate that density-driven fingering instabilities in high-permeability porous media cause significant downward redistribution of evaporating solutes, preventing surface saturation, whereas lower-permeability media allow for extreme near-surface concentration buildup.
This paper numerically solves the linearized BGK model for steady rarefied gas flow past an infinitely thin circular disk, revealing the formation of a kinetic boundary layer and thermal polarization effect near the disk edge that scale as , while also computing drag forces that align with existing results across a wide range of Knudsen numbers.
This study employs particle-resolved direct numerical simulations to investigate cohesive particle agglomerate deagglomeration in homogeneous isotropic turbulence, revealing that erosion-driven breakage is the dominant mechanism governed by strain-dominated flow structures and providing data to develop physics-informed breakup kernels for coarser simulation models.
This paper investigates the water wave scattering by a surface-mounted rectangular anisotropic elastic plate with various edge conditions by combining a Rayleigh–Ritz method for dry mode expansion with a boundary integral equation solved via a constant panel method to analyze resonant responses and symmetry-forbidden mode excitations.
This paper demonstrates that strategically pre-generating and curating multi-difficulty PDE training data, specifically by including abundant low-to-medium difficulty examples, significantly reduces the computational cost of classical solvers while enabling neural PDE solvers to achieve high-accuracy performance on complex tasks with far fewer high-difficulty samples.
This paper investigates the time-periodic flow of a thin viscous film on a rotating horizontal cylinder, revealing intricate fractal-like blow-up structures in the amplitude-frequency parameter space and demonstrating how asymptotic analysis in high- and low-frequency limits can delay overturning or construct stable quasi-periodic solutions.
This paper presents a novel single-grid, Eulerian-VOF model within the open-source Basilisk framework that fully resolves coupled solid-gas dynamics and anisotropic particle deformation during biomass pyrolysis, demonstrating excellent agreement with experimental data while providing a robust tool for developing sustainable pyrolysis processes.
Through combined experiments and large-scale simulations, this study reveals that strong confinement in rotationally driven colloidal suspensions induces large-scale density fluctuations via recirculating flows, demonstrating that distant boundaries can fundamentally alter mesoscale ordering in out-of-equilibrium systems.