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 paper investigates the capillary-driven retraction of a highly viscous liquid sheet in the limit of large Ohnesorge and aspect ratios, deriving a reduced heat-equation model with a single dimensionless parameter that reveals distinct retraction regimes—including early-time growth, a Taylor-Culick intermediate phase for long sheets, and late-time decay—through asymptotic matching of thin-film and tip-flow dynamics.
This paper presents a novel geometric reinitialization method for the Conservative Level-Set solver in capillary flow simulations, demonstrating through comparative 3D case studies that it achieves high-fidelity results with greater robustness and fewer parameters than traditional PDE-based approaches, while outperforming simple projection-based methods.
This paper proposes a novel inverse-time PDE framework for Navier-Stokes vortex stretching that integrates score-based diffusion models to learn Lagrangian particle trajectories, revealing that information about initial positions dissipates rapidly in compressive directions while being preserved in stretching directions.
This paper presents a new systematic derivation of the energy equation for the Shallow Water Linearized Moment Equations (SWLME) by extending the standard Shallow Water Equations approach to include skew-symmetric formulations, thereby facilitating the extension to other SWME variants and improving their numerical solutions.
This paper presents a 1D mean-field model that integrates 3D-derived dynamo coefficients to demonstrate how nonlinear interactions between dynamo-generated magnetic fields and internal gravity waves create new dynamical regimes, such as magnetic perturbations of shear layer oscillations, which significantly influence angular momentum transport and the long-term rotational evolution of stellar radiative interiors.
This paper demonstrates that rigidly rotating odd viscous liquids support a diverse spectrum of non-axisymmetric oscillatory, evanescent, and mixed-type inertial-like waves, the classification and precession characteristics of which offer a pathway to experimentally determine odd viscosity coefficients while establishing a formal equivalence between two- and three-dimensional formulations.
This paper establishes a unified theoretical framework for traveling wave electroosmosis that explains the emergence of a unidirectional zero-mode velocity through symmetry-breaking nonlinearities, demonstrating self-similar velocity profiles and providing universal relations to predict transport in thin capillaries without the need for repeated experiments.
This study reveals that dense suspensions of contactless silica microparticles exhibit an aging phenomenon where longer resting periods logarithmically delay flow onset and reduce velocity by progressively stabilizing the system through thermal fluctuations, independent of packing fraction changes or crystallization.
This paper demonstrates that applying an alternating electric field to electrolyte-filled channels with modulated wall charge generates oscillating laminar flows and vortices with circulation dependent on the oscillation period, revealing a frequency- and viscosity-dependent "memory retention time" that enables control over signal carriers despite vanishing mass flux.
This paper investigates the nonlinear instability of a thin fluid rivulet in an air-filled Hele-Shaw cell under external acoustic forcing, revealing that a three-wave resonant interaction drives the formation of a specific spatiotemporal pattern whose mode selection and threshold are successfully predicted by a depth-averaged Navier-Stokes model.