1247 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 reduced-order modeling approach that utilizes the Lorenz attractor framework to simulate unsteady aircraft aerodynamics and wing rock phenomena by transforming Navier-Stokes equations into a system of three scalar ordinary differential equations, thereby capturing complex chaotic dynamics with significantly reduced computational cost.
Using molecular dynamics simulations and a validated one-dimensional theoretical framework, this study reveals that ion adsorption at the water-silica interface generates molecular-scale roughness and additional friction, significantly increasing apparent viscosity and governing ultra-confined ionic transport in wetting films.
This study combines experimental measurements with linear modeling to reveal that low-frequency coherent structures in separated turbulent flow over a Gaussian bump are driven by a three-dimensional zero-frequency modal instability and finite-span standing-wave dynamics, offering a physical explanation for discrepancies between simulations and experiments while highlighting the critical need for adequate spanwise domain sizes in numerical studies.
This paper demonstrates that aeroacoustic emissions from intense evaporation encode sub-millisecond physics-governed fingerprints of vapor-jet dynamics, enabling the development of a theoretical framework that accurately tracks transient cavity properties and identifies critical transitions in metallic additive manufacturing.
This study develops and validates a combined analytical and numerical framework linking thermal spray nozzle operating conditions to far-field aeroacoustic signatures and in-flight particle transport, demonstrating that acoustic monitoring can serve as a non-intrusive method for controlling and optimizing the thermal spray process.
This paper reviews the analogue gravity description of unidirectional water waves in two-dimensional flows with constant shear, demonstrating that such flows can be effectively modeled by a curved spacetime metric without requiring prior knowledge of general relativity.
This paper investigates the motion of compressible, inviscid fluid on a rotating sphere by presenting hodograph equations that yield a class of solutions parameterized by two arbitrary functions, providing explicit examples, describing blow-up curves, and analyzing limiting cases of rotation speeds.
This study investigates mid-air collisions between free micron-sized droplets and particles to reveal how particle density and wettability govern capture outcomes, leading to a modified effective Weber number that successfully unifies collision regime boundaries across varying size ratios and Ohnesorge numbers.
This study investigates unsteady separated flow over a three-dimensional Gaussian bump at a Reynolds number of , identifying four distinct broadband phenomena and revealing that the very-low-frequency spanwise meandering of the wake is dynamically coupled with the streamwise stretching of the separation zone.
This study demonstrates that a machine learning-based mesh movement approach (UM2N) integrated into the Thetis software significantly accelerates and robustly enhances the accuracy of non-hydrostatic tsunami simulations for probabilistic coastal hazard assessment.