1214 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 characterizes families of solitary waves in a coupled Korteweg--de Vries and linear Schrödinger system by analyzing a sequence of pitchfork bifurcations from uncoupled KdV solitons, proving that the ground state solution is an energy minimizer and connecting these bifurcations to known exact solutions.
This paper proposes a theoretical framework integrating averaged magnetic moment dynamics with self-optimized helical flux cascades to derive spectral laws and quantify turbulence randomness that align with experimental observations across various fusion devices.
This paper demonstrates that accurately modeling chaotic systems requires combining stochastic closures with trajectory-based calibration using proper scoring rules, as deterministic pointwise losses suppress essential predictive variance and fail to capture long-term statistics.
This study combines weak wave turbulence theory and direct numerical simulations of 2D stratified fluids to identify three distinct flow regimes, confirm theoretical energy spectra in the weak turbulence limit, and explain the formation of layered structures at strong stratification through inverse energy cascades and discrete wave interactions.
This study utilizes direct numerical simulations to demonstrate that the distribution of intense spectral energy transfers in homogeneous isotropic turbulence is primarily determined by the proximity to energy-containing scales rather than the local or nonlocal nature of triadic interactions, a finding that aligns with EDQNM theory and the forward energy cascade picture.
This study utilizes three network models and a unified flow focusing metric to demonstrate that structural heterogeneity inherent in porous and fractured rock topologies imposes a fundamental limit on flow homogenization, preventing complete uniform dissolution regardless of system conditions.
This paper presents a minimal linear response framework that explains macroscopic elliptical motion in confined bacterial swarms as system-wide spontaneous oscillations arising from the coupling of microscopic swimming dynamics with fluid flow, requiring both a critical bacterial density and strict geometric confinement.
This paper quantifies field-scale CO plume growth at multiple sites by comparing seismic data with analytical porous-medium scaling solutions, deriving closed-form expressions for plume thickness and edge evolution under both shut-in and constant injection conditions to establish a physically transparent baseline for future modeling.
This paper reports the discovery and detailed bifurcation analysis of five new symmetry-constrained exact coherent structures in plane Poiseuille flow, revealing how their distinct stability properties and complex S-shaped solution branches are organized around a persistent roll-streak topology across varying Reynolds numbers and spanwise periods.
This paper demonstrates through direct numerical simulations that incorporating helicity effects alongside Smagorinsky-like eddy viscosity improves subgrid-scale modeling in large-eddy simulations by addressing the over-dissipative behavior of standard models.