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 finite element simulations to demonstrate that in non-Newtonian power-law fluids, shear-thinning behavior enhances heat transfer while uniform thermal boundary conditions promote stronger convection and higher entropy generation compared to non-uniform heating, offering key insights for optimizing thermal system design.
This paper presents a hybrid quantum-classical method for solving the advection-diffusion equation that scales efficiently with system dimension and demonstrates reliable results on current noisy IBM quantum hardware, offering a potential pathway to overcome computational and power limitations in numerical weather prediction.
This study employs generalized Taylor dispersion theory and simulations to demonstrate that the long-time dispersion of active Brownian particles in oscillatory Poiseuille flow exhibits non-monotonic and oscillatory behaviors driven by the interplay between self-propulsion and time-dependent advection, offering a mechanism to tune particle transport in confined geometries.
Through direct numerical simulations at a Reynolds number of 150, this study reveals how free-end effects and rotation rates govern the transition from unsteady vortex shedding to stabilized or complex three-dimensional wake structures in finite-aspect-ratio rotating cylinders, demonstrating that end plates can effectively suppress these detrimental effects to improve aerodynamic performance.
This paper presents a self-consistent, unified scaling law for the maximum spreading ratio of wetting droplets across inertio-capillary and inertio-viscous regimes by deriving the spreading time and velocity directly from an energy balance, thereby eliminating the need for regime-specific prefactors and accurately collapsing data over wide ranges of Weber and Ohnesorge numbers.
This paper presents a novel block-coupled Volume of Fluid Immersed Boundary (BC-VOF-IB) solver implemented in OpenFOAM that overcomes numerical instabilities caused by high viscosity contrasts to accurately simulate free-surface polymer mixing in partially filled industrial extruders.
This paper establishes a link between the geometry and dynamics of the cavity formed by an inclined smooth water jet impacting a water surface and the resulting bubble cloud, revealing that the bubbles originate from the destabilization of a shear-layer-induced wavefield at the cavity interface.
This study demonstrates that while open-loop Bayesian optimization successfully improved aerodynamic efficiency by 10.9% through steady jet control on a 30P30N high-lift wing, closed-loop deep reinforcement learning yielded negligible gains due to a penalty-dominated reward function that constrained exploration.
This paper proposes a residual- and realizability-filtered gene expression programming framework that integrates physical constraints directly into the CFD solution loop to efficiently discover stable, physically consistent turbulence closure models for wake flows, achieving significant reductions in computational cost and non-realizable outcomes while demonstrating robust generalization across diverse geometries.
This study uses direct numerical simulations to demonstrate that global core-mantle boundary topography drives a new instability and significantly enhances outer-core convection and topographic torques, providing a mechanism consistent with observed decadal variations in the length of day.