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 study utilizes a phase-field model to demonstrate that shear-induced surfactant reorientation dynamically increases effective surface tension, thereby providing a microscopic mechanism that significantly influences droplet deformation in both weakly and strongly confined shear flows.
This paper demonstrates that in rapidly rotating planetary cores, the addition of relatively weak thermal buoyancy to a strong compositional buoyancy driver stabilizes the axial dipole magnetic field through the generation of slow magnetostrophic waves, thereby extending the dipolar regime and requiring significantly higher compositional forces to trigger polarity reversals.
This study demonstrates through 2D pore-network simulations that efficient mineral replacement under advective flow can be achieved not only by rapid precipitation but also by an "exploratory" regime where repeated self-blocking and flow re-routing distribute the secondary mineral uniformly, thereby overcoming the spatial inefficiency of wormhole-dominated dissolution.
This paper derives universal closed-form scaling laws for shear-induced self-diffusivity in dilute non-Brownian suspensions, demonstrating that weak central repulsive forces break hydrodynamic fore-aft symmetry to generate irreversible transverse displacements, with the gradient component exhibiting a logarithmic enhancement over the vorticity component regardless of the specific repulsive mechanism.
This paper presents a computationally efficient numerical framework that combines a two-fluid model with slender-body theory to simulate the locomotion of flagellated bacteria in complex, porous bio-fluids by decomposing the flow into additive kinematic, forcing, and polymer stress components.
This paper demonstrates that spatially distributed nonlinearities, exemplified by leaflets in the lymphatic vascular system, function as continuous broken symmetries to enable robust, scalable, and tunable unidirectional fluid transport in both biological and artificial systems through the coupling of spatiotemporal excitations with nonlinear dynamics.
This paper proposes LVM-PINN, a framework that enhances the stability and accuracy of incompressible flow reconstruction under sparse and noisy data conditions by embedding a learnable spatiotemporal viscosity modulation mechanism directly into the physics-informed neural network's residual.
This study applies Resolvent Analysis to a turbulent hydrogen-air slot flame, demonstrating that while a standard linearized model captures velocity dynamics dominated by Kelvin-Helmholtz wave packets, a newly calibrated generalized active-flame closure is required to accurately predict progress variable and heat release modes, ultimately confirming the approach's viability despite thermodiffusive instabilities.
This study utilizes two-way coupled simulations to demonstrate that the aerodynamic performance of passively morphing foils under accelerated plunging is critically dependent on the interplay between wing geometry, bending rigidity, and the extent of trailing-edge flexibility, revealing that bio-inspired cambered shapes offer superior stability and performance compared to symmetric foils in unsteady environments.
This paper derives and analyzes reduced bidirectional and unidirectional weakly nonlinear models for hydroelastic water waves coupled to a nonlinear viscoelastic plate, establishing local and global well-posedness results for these new nonlocal evolution equations.