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 paper presents a joint theoretical and numerical study of stochastic compressible Navier-Stokes equations under location uncertainty, demonstrating their application to ocean modeling through Boussinesq approximations that reveal significant compression effects in potential energy and offer improved energetic consistency for subgrid-scale vertical mixing models.
This study utilizes three-dimensional direct numerical simulations to demonstrate that insoluble surfactants significantly alter spilling breaking waves by inducing Marangoni stresses that modify crest evolution and vorticity generation, whereas their impact on regular breakers remains minimal.
This experimental study demonstrates that applying a wavy-wall geometry to the suction side of a NACA4412 airfoil at a Reynolds number of 3000 significantly delays turbulent boundary layer separation and increases the friction coefficient by up to 42.3% by leveraging small-scale turbulent activity for enhanced momentum transport, provided the geometry avoids inducing detrimental large-scale flow separations.
This paper proposes a conditional neural field-based reduced order model that, when combined with an LSTM network, achieves accurate and parameter-efficient spatio-temporal prediction of aircraft ditching loads while offering superior flexibility over traditional grid-based methods by handling heterogeneous spatial discretizations.
This paper introduces an active porous medium model based on the Navier-Stokes-Brinkman equations to demonstrate how ciliary confinement and packing density govern a fundamental trade-off between flow rate and sustainable pressure in ciliated ducts, thereby unifying the physical understanding of diverse ciliated organ morphologies.
This paper presents a combined theoretical and experimental study of the vertical dynamics of a periodically driven floating disc, utilizing a numerical solution to a Fredholm integral equation to accurately predict oscillation amplitudes and interpret the system's behavior through added mass, wave damping, and effective spring coefficients.
This paper presents a novel finite element method for modeling hydroelastic flexure of arbitrarily shaped Antarctic ice shelves under long ocean wave forcing, enabling the identification of resonant responses and the analysis of how shelf geometry, wave direction, and grounding proportions influence mechanical stresses and calving risks.
This paper presents a novel N-component free energy lattice Boltzmann method that ensures strict reduction consistency and global momentum conservation to machine precision, demonstrating high accuracy across diverse multi-phase flow simulations ranging from static droplets to complex microfluidic applications.
This paper presents a unified gas-kinetic wave-particle (UGKWP) method for simulating multiscale binary-species gas mixtures that accurately captures species-specific velocity and temperature differences across continuum to rarefied regimes by integrating a corrected equilibrium model, Shakhov-based Prandtl number correction, and improved particle transport mechanisms, while demonstrating strong agreement with DSMC results for hypersonic flows.
This paper investigates the dynamics of fast magnetosonic wave turbulence through numerical simulations of a recently derived kinetic equation, revealing a mixed forward-backward cascade, validating the Kolmogorov-Zakharov spectrum with an analytical constant, and providing a theoretical framework for observed weak turbulence regimes in solar wind plasma.