physics.flu-dyn papers | Gist.Science

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.

Geometry-Aware Physics-Informed PointNets for Modeling Flows Across Porous Structures

This study introduces and evaluates two physics-informed deep learning frameworks, PIPN and P-IGANO, which successfully model coupled fluid-porous flows across diverse and unseen geometries by enforcing Navier-Stokes and Darcy-Forchheimer equations within a unified loss function, thereby offering a retraining-free approach to accelerate design studies despite minor performance degradation near sharp interfaces.

Luigi Ciceri, Corrado Mio, Jianyi Lin, Gabriele Gianini2026-02-17🤖 cs.LG

Droplet impact on surfactant-laden thin liquid films: Vortex ring dynamics

This experimental study demonstrates that increasing surfactant concentration in thin liquid films stabilizes vortex rings and suppresses azimuthal instabilities during droplet impact by modifying Marangoni stresses, ultimately establishing a regime map that links interfacial stresses to mixing patterns and instability thresholds.

Hatim Ennayar, Hyoungsoo Kim, Jeanette Hussong2026-02-17🔬 physics

Wavemaker and endogeneity of gravitationally stretched weakly viscoelastic jets

This paper presents a unified one-dimensional model with full-curvature capillarity and Giesekus stress closure to analyze the global linear stability of gravitationally stretched viscoelastic jets, revealing how moderate elasticity shifts the critical jetting-dripping boundary and identifying the near-nozzle region as the dominant receptive location for instability onset through wavemaker and structural-sensitivity analysis.

Daniel Moreno-Boza2026-02-17🔬 physics

Fluidic Shaping over arbitrary domains: theory and high order finite-elements solver

This paper establishes the theoretical foundation for Fluidic Shaping over arbitrary domains and presents a novel high-order (quintic) finite element solver capable of accurately predicting the topography and curvature of complex optical liquid surfaces, overcoming the limitations of previous analytical and numerical methods restricted to linearized equations or simple geometries.

Amos A. Hari, Moran Bercovici2026-02-17🔢 math-ph

Coupled hydro-aero-turbo dynamics of liquid-tank system for wave energy harvesting: Numerical modellings and scaled prototype tests

This study proposes and validates a novel integrated numerical model for wave-energy-harvesting liquid tanks equipped with multi-layered impulse air turbines, revealing that optimizing turbine design and tank breadth significantly enhances power output while multi-layered configurations offer superior reliability in extreme conditions compared to conventional single-rotor systems.

Chongwei Zhang, Xunhao Zhu, Cheng Zhang, Luofeng Huang, Dezhi Ning2026-02-16🔬 physics

Effects of the sheared flow velocity profile on impedance eduction in a 2D duct

This study evaluates how different sheared flow velocity profiles affect impedance eduction in 2D ducts, finding that while simplified profiles can cause significant errors, the Ingard--Myers boundary condition remains a robust approximation for realistic turbulent boundary layers.

Lucas A Bonomo, Edward J Brambley, Julio A Cordioli2026-02-16🔬 physics

Latent-space variational data assimilation in two-dimensional turbulence

This paper proposes a latent-space variational data assimilation method using implicit rank-minimizing autoencoders to estimate full two-dimensional turbulent flow states from limited measurements, achieving significantly higher accuracy and robustness to noise compared to standard state-space approaches by optimizing in a lower-dimensional, physically meaningful coordinate system.

Andrew Cleary, Qi Wang, Tamer A. Zaki2026-02-16🔬 physics

Bicontinuity in active phase separation

Through a combination of numerical simulations and experiments, this study reveals that chaotic flows in active fluids drive the formation of persistent, sheet-like bicontinuous structures that suppress conventional phase separation coarsening, resulting in steady-state reconfigurable morphologies distinct from passive systems.

Paarth Gulati, Liang Zhao, Michio Tateno, Omar A. Saleh, Zvonimir Dogic, M. Cristina Marchetti2026-02-16🔬 cond-mat

An Oscillation-Free Real Fluid Quasi-Conservative Finite Volume Method for Transcritical and Phase-Change Flows

This paper presents a new Real Fluid Quasi-Conservative (RFQC) finite volume method that eliminates spurious pressure oscillations in transcritical and phase-change flows by locally linearizing the equation of state and evolving auxiliary variables, thereby ensuring accurate and robust shock capturing with minimal energy conservation errors.

Haotong Bai, Wenjia Xie, Yixin Yang, Ping Yi, Mingbo Sun2026-02-16🔬 physics

Direct power spectral density estimation from structure functions without Fourier transforms

This paper introduces and validates a novel framework for estimating power spectral densities directly from second-order structure functions without using Fourier transforms, demonstrating its robustness across analytical models, simulations, and observational data from turbulence studies.

Mark A. Bishop, Sean Oughton, Tulasi N. Parashar, Yvette C. Perrott2026-02-16🔭 astro-ph

← Previous Next →