995 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 establishes an analytical framework linking complex Fourier velocity phase dynamics to energy flux in hydrodynamic shell models, demonstrating that self-interaction-dominated noisy phase oscillators predict a forward energy cascade for systems conserving energy and a sign-indefinite quadratic quantity, while preventing inverse cascades analogous to two-dimensional turbulence.
Through simplified 3D MHD simulations and phenomenological analysis, this study identifies an asymptotic ultimate regime for the solar dynamo at large magnetic Reynolds numbers characterized by inter-hemispheric helicity fluxes, while highlighting that current global simulations remain trapped in non-asymptotic, parameter-sensitive regimes and outlining strategies to reach the true asymptotic state in realistic models.
This paper introduces a fluctuating Darcy model to demonstrate that space- and time-dependent porosity fluctuations significantly enhance or modify the hydrodynamic permeability of porous membranes compared to static matrices, offering new insights for optimizing membrane design.
This study numerically investigates rapidly rotating Rayleigh-Bénard convection on a tilted -plane, revealing that increasing colatitude transforms large-scale vortices into zonal flows, reduces global heat and momentum transport due to broken rotation symmetry, and maintains a persistent unstable mean temperature gradient through lateral thermal mixing.
This paper presents a simplified model derived from the Navier-Stokes equations that successfully reproduces complex transitional turbulence phenomena in planar shear flows, such as oblique turbulent bands and large-scale flows, while providing a theoretical framework for understanding their onset and orientation.
This paper presents and validates an advanced nonlinear Kirchhoff rod model enhanced with a penalty-based barrier function for simulating mooring lines, demonstrating its accuracy against established solutions and revealing key dynamic behaviors such as frequency-dependent regime transitions and axial-bending coupling under various loading conditions.
This paper presents semi-analytical solutions for viscous Gubser flow with conserved charges to benchmark numerical fluid simulations, demonstrating excellent agreement between these solutions and the newly developed CCAKE Smoothed Particle Hydrodynamics code.
The paper proposes a Multi-stream Physics Hybrid Network that integrates parallel quantum and classical layers to decompose fluid dynamics solutions into frequency components, achieving significantly lower error rates and higher efficiency than classical models when solving the Navier-Stokes equations for Kovasznay flow.
This study introduces FlexPINN, an enhanced Physics-Informed Neural Network framework that successfully models fluid dynamics and mass transfer in 3D T-shaped micromixers with various fin geometries and configurations, achieving high accuracy compared to CFD while demonstrating superior mixing efficiency in specific double-unit setups at Reynolds number 40.
This letter investigates the steady arrowhead structure in dilute polymer solutions by utilizing a moving reference frame and a novel stressline formulation to demonstrate how the curvature of viscoelastic stress sheets governs the local flow topology and explains the observed pressure jumps.