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 utilizes a 2D model of the rat duodenum to demonstrate that intestinal pendular-wave motility is primarily optimized for shearing the mucus barrier rather than bulk fluid pumping, as evidenced by its low pumping efficiency and the finding that viscous energy dissipation is governed by intervillous geometry rather than the dynamic mixing boundary layer.
This study combines experiments and numerical simulations to investigate how surface roughness and rotation rate influence the drag, flow structures, and yield limits of rotating bodies settling in a yield-stress fluid, revealing that enhanced rotation promotes wall slip and creates a plastic deformation zone while reducing drag coefficients.
This paper utilizes ultra-high-resolution MHD simulations and a constant-flux transport model to demonstrate that compressible, magnetized turbulence exhibits scale-dependent alignment of velocity, magnetic, vorticity, and current fields below the energy equipartition scale, with specific scaling exponents that significantly impact eddy anisotropy, reconnection, and dynamo processes.
This study demonstrates that supercritical CO2 under non-equilibrium conditions exhibits spontaneous stratification and Brunt-Vaisala oscillations when crossing Widom lines, revealing that the Widom region functions as a dynamic assembly of phase-like behaviors rather than a homogeneous phase.
This paper presents an analytical model describing the resonance behavior of a gas microbubble near a spherical inclusion of arbitrary mechanical properties, demonstrating how frequency response analysis can be used to recover the mechanical characteristics of nearby objects like biological cells for high-resolution microscale elastography.
This paper demonstrates that within linear theory, constant vorticity significantly alters the behavior and spatial location of dynamic and hydrodynamic pressure extrema in periodic water waves, diverging from the predictable crest-trough patterns observed in irrotational flows.
This paper utilizes shell-to-shell transfer functions to demonstrate that inverse energy transfer in decaying magnetohydrodynamic turbulence arises from non-local, self-similar growth driven by the merging of local magnetic islands with equal-signed helicity, a mechanism consistent with Hosking integral conservation that operates independently of net-helicity and within individual helical sectors.
This paper introduces Streami, an open-source, extensible GPU-accelerated library that interfaces with MPI applications to efficiently compute field lines in fluid flows for both post-hoc and in-situ analysis.
This study employs high-fidelity direct numerical simulations and an extended force partitioning method to demonstrate that an upstream underwing cylinder significantly exacerbates transonic flutter in a NACA0012 airfoil by accelerating flow through the gap and dominating energy transfer from the fluid to the structure.
This paper presents a reduced asymptotic model for the bidirectional interaction between weakly nonlinear surface gravity waves and slowly evolving currents in rotating fluids that eliminates the need for spatial scale separation by coupling a wave amplitude equation with the Craik-Leibovich momentum framework to capture current-induced advection, refraction, and scattering while conserving wave action and energy.