1270 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 experimental study characterizes the shear layer evolution and flow dynamics of axisymmetric open cavities in Mach 6 flow, revealing how variations in length-to-depth ratio and rear-face height influence the transition from laminar to turbulent states, the dominance of Kelvin-Helmholtz versus flapping modes, and the resulting spectral characteristics.
This study presents a unified framework for understanding fluid-structure interactions near boundaries by categorizing biological locomotion and pumping across low and high Reynolds number regimes, demonstrating how ground effects enhance performance through lubrication-driven scaling in snails, aerodynamic lift in bats, and jet-vortex mechanisms in honeybees.
This study combines experimental observations and a modified theoretical model to demonstrate how temperature, humidity, and airflow-induced shape oscillations significantly alter the evaporation dynamics and lifetime of freely levitated water droplets, extending the classical -law to accurately predict their behavior in convective environments.
This study demonstrates that fluid viscoelasticity governs acoustic streaming in microchannels by modulating shear waves and the interplay between Reynolds and viscoelastic stresses, enabling the enhancement, suppression, or reversal of flow regimes based on the Deborah number, viscous diffusion number, and a derived Streaming Coefficient.
This study combines order-of-magnitude analysis of Reynolds-averaged Navier-Stokes equations with data-driven symbolic regression to derive compact, interpretable, and physically constrained correlations for turbulent pipe friction factors that accurately fit experimental data across a wide range of Reynolds numbers and roughness levels.
This study investigates the conversion between kinetic and surface energy in periodically forced multiphase turbulence through numerical simulations and an enhanced total energy model, revealing that while kinetic energy exhibits non-equilibrium phase lags, surface energy remains in equilibrium with its destruction, indicating the absence of a surface energy cascade.
This study investigates flow-induced segregation in dense bidisperse granular mixtures flowing through narrow vertical channels, revealing that large particles form bands away from the walls due to rolling and bouncing mechanisms, and demonstrating that strategically placed cylindrical inserts can either eliminate these bands to enhance mixing or amplify reverse segregation depending on their configuration.
This study demonstrates that impact-induced liquid jets achieve greater penetration depth in skin-simulating materials than laser-induced jets at similar velocities due to their focused cylindrical structure, and proposes a shear deformation model that successfully explains this penetration mechanism by accounting for liquid viscosity, jet inertia, and material elasticity.
This paper demonstrates that applying a wavy-wall geometry to the suction side of a NACA4412 airfoil at Re_tau = 3000 significantly delays turbulent separation and increases the friction coefficient by up to 42.3% by enhancing small-scale streamwise convection and sweeping motions, provided the geometry avoids inducing detrimental large-scale flow separations.
This study demonstrates that engraving vertical grooves on condensing plates can transform the inherently stochastic process of edge dripping into a spatially organized and temporally regular release mechanism by redirecting surface flow into geometry-defined drainage paths, thereby enabling precise control over water detachment for applications in dew harvesting and passive cooling.