967 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 uses direct numerical simulations to demonstrate that magnetostatic fields can reduce the consumption speed of laminar premixed hydrogen-air flames at low pressure by altering flow vorticity to suppress hydrodynamic instabilities, whereas this effect becomes negligible at high pressure.
This paper introduces Physics-Informed Multivariate Functional Approximation (PI-MFA), a framework that utilizes tensor-product B-splines to generate continuous, differentiable flow field reconstructions by optimizing control points to balance data fidelity with governing physical laws, thereby ensuring physically consistent results even from inconsistent input data.
Inspired by diatom colonies, this study reveals a novel, highly efficient swimming mechanism where internal sliding between stacked cells generates propulsion opposite to classical undulatory motion, offering new design principles for bio-inspired microswimmers.
This paper extends minimal force-dipole models for microswimmers near boundaries by incorporating higher-order flow singularities and time-dependent shape oscillations via multiscale analysis, revealing that these factors significantly expand the reachable parameter space and enable distinct behaviors like hovering that are absent in simpler, averaged models.
This paper validates a prognostic triple coherence formulation showing that mesoscale eddy–internal wave coupling dominates the Sargasso Sea's internal wave energy budget and acts as a local enstrophy damping mechanism that maintains gyre-scale potential vorticity gradients by terminating the potential enstrophy cascade.
This study demonstrates that Taylor's hypothesis is invalid for temperature fluctuations in a highly heterogeneous forest clearcut flow under buoyant conditions because large-scale random sweeping events distort space-time correlation functions into elliptic curves, necessitating a more general elliptic model for accurate temporal-to-spatial conversion.
This study uses hydrodynamical simulations to demonstrate that rotation significantly influences fingering convection in planetary cores, causing primary finger orientations to shift with stratification strength and driving diverse secondary large-scale flows—such as zonal winds and poloidal bands—that may interact with and alter planetary magnetic fields.
This study utilizes large-eddy simulations to demonstrate that while overall urban drag remains relatively stable across wind directions, individual building drag varies significantly due to upstream shielding, a phenomenon effectively quantified by introducing fetch and height ratios to classify buildings into four drag regimes and refine the calculation of effective frontal area.
This paper numerically validates wave turbulence theory predictions for the Majda-McLaughlin-Tabak model across various parameter regimes, discovers a new stable stationary state in previously unexplored regions, and identifies incurable divergences in next-to-leading-order corrections for one-dimensional and higher-dimensional systems with concave dispersion relations.
This study demonstrates that in generalised Newtonian fluids, the nonlinear viscous term in the momentum equation acts not only as a dissipation mechanism but also as a conservative energy transfer agent that drives a forward cascade and replaces the classical exponential spectral cutoff with a power-law decay, particularly in shear-thickening regimes.