1220 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 introduces a generalized actuator disk theory that seamlessly integrates classical streamtube analysis with turbulent wake modeling to predict flow variations and provide more realistic thrust and power coefficients for highly-loaded rotors at arbitrary distances.
This study utilizes high-resolution fluid-structure interaction simulations to demonstrate that while hydrodynamic actuation monotonically affects oil droplet mobilization time in deformable constricted tubes, dynamic wall actuation offers superior control through a resonance effect that minimizes transport time near the tube's natural frequency.
Using the FOUCAULT model, this study provides numerical evidence that Kelvin waves on quantized vortices in superfluid helium induce a coherent, temperature-dependent response in the normal fluid component, offering a new pathway for their experimental observation via tracer-based visualization.
This study utilizes three-dimensional Stokesian dynamics to demonstrate that hydrodynamic interactions in mixed suspensions of bottom-heavy squirmers and passive spheres can induce novel self-organised structures, such as fibrillar and lamellar phase separations, while generally disrupting orientational order.
This study demonstrates that sufficiently strong horizontal convection can suppress Rayleigh-Bénard convection and induce a restratified state in a fluid layer, identifying specific scaling laws for the onset of neutral and strong stratification regimes driven by the interplay between horizontal and vertical buoyancy fluxes.
This study experimentally validates that distributed micro-roughness (DMR) coatings can reduce aerodynamic drag by up to 43.6% on a streamlined body in transitional flow by modifying the boundary layer state to lower skin friction, rather than by suppressing flow separation.
This paper presents a robust, three-parameter composite mean velocity profile for high-Reynolds-number turbulent boundary layers under adverse pressure gradients, which incorporates history effects and velocity overshoot to enable reliable estimation of flow parameters and demonstrates that the von Kármán coefficient converges to an invariant value of approximately 0.39 at sufficiently high Reynolds numbers.
This paper proposes a spectral visibility graph-based methodology that effectively detects both primary and secondary bifurcations leading to oscillatory instabilities in thermo-acoustic and aero-acoustic systems by tuning a single sensitivity parameter to capture evolving harmonic content and provide adaptive early warnings.
This study investigates jet-edge interactions in a round turbulent jet grazing a plate, classifying tonal dynamics into distinct regimes based on linear and non-linear frequency-selection mechanisms and identifying a robust, non-hysteretic mode-switching phenomenon at Mach 0.84.
This study investigates the applicability of incompressible roughness parameters in compressible turbulent boundary layers across a wide range of Mach and Reynolds numbers, revealing that while velocity transformations have limited impact, the fully rough regime exhibits a Mach-number-dependent shift that is best addressed by a temperature-ratio-based correction factor, thereby highlighting the need for custom rough-wall transformations.