1210 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 proposes and evaluates a new class of high-order -exact advection schemes for spherical centroidal Voronoi tessellations, demonstrating their high accuracy and grid robustness in both classical test cases and a mimetic finite-volume moist shallow-water model.
This paper introduces AegirJAX, a fully differentiable hydrodynamic solver built on reverse-mode automatic differentiation that unifies forward simulation and inverse optimization to enable end-to-end training for diverse coastal engineering tasks, including bathymetry estimation, breakwater design, and active wave control.
This paper resolves a 15-year-old mystery in fluid dynamics by demonstrating that viscous bending, rather than inertial forces, selects the specific wavelength of the spontaneous meandering instability in slender rivulets within Hele-Shaw cells, thereby completing the linear-stability picture of this phenomenon.
This paper presents a computationally efficient framework that reduces the infinite-dimensional optimization of slip velocity for arbitrary 3D microswimmers to a low-dimensional problem by leveraging the Lorentz reciprocal theorem and boundary integral methods to minimize hydrodynamic power dissipation.
This paper identifies and characterizes a novel, non-dissipative structural one-body force field perpendicular to local flow that sustains spatial inhomogeneities and stabilizes density gradients in driven nonequilibrium colloidal systems, providing a quantitative understanding of viscous and structural forces through exact limits, simulations, and a new power functional approximation.
This paper introduces novel Hyperbolic Shallow Water Moment Equations derived through primitive variable regularization, which analytically overcome the hyperbolicity and accuracy limitations of existing models while preserving the correct momentum equation and enabling interpretable steady states.
This paper introduces and validates the Hilbert Proper Orthogonal Decomposition (HPOD), a complex-valued extension of POD that extracts advective wavepackets from flow data, demonstrating that a novel space-only variant is mathematically equivalent to the conventional time-based approach and uniquely capable of analyzing temporally under-resolved datasets.
This paper introduces a robust optimisation framework that combines variational residual minimisation with a resolvent-based Galerkin projection to efficiently compute invariant solutions, such as equilibria and periodic orbits, for wall-bounded flows like rotating plane Couette flow.
This paper evaluates the accuracy of a custom Lattice-Boltzmann solver in simulating two-dimensional turbulent flows around randomly located rigid disks, specifically analyzing the resulting von Kármán vortex streets while providing the implementation code for reproducibility.
This study validates two particle-resolved numerical simulation methods against Particle Image Velocimetry measurements of gas flow through a modular packed bed of rotated square bars at Reynolds numbers of 100 and 200, revealing that internal flow is primarily governed by void geometry while freeboard dynamics are dominated by unsteady jets, with both simulation approaches showing good agreement with experiments despite some deviations in the freeboard region.