🔬 Category

physics.flu-dyn

1229 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.

4D Synchrotron X-Ray Multi Projection Imaging (XMPI) for studying multiphase flow dynamics and flow instabilities in porous networks

This paper demonstrates that synchrotron X-ray multi-projection imaging (XMPI) enables high-resolution, real-time 4D visualization of sub-second flow instabilities in porous media without the centrifugal artifacts of conventional tomography, thereby revealing critical limitations in current Lattice Boltzmann simulations regarding contact-line dynamics and boundary conditions.

Patrick Wegele, Zisheng Yao, Jonas Tejbo, Julia K. Rogalinski, Zhe Hu, Yuhe Zhang, Erfan Oliaei, Saeed Davoodi, Alexander Groetsch, Kim Nygård, Eleni Myrto Asimakopoulou, Tomas Rosén, Pablo Vill (…)2026-03-17🔬 physics

Wave propagation through periodic arrays of freely floating rectangular floes

This paper investigates the two-dimensional propagation of small-amplitude waves through an infinite periodic array of freely floating rectangular floes by combining Bloch-Floquet theory with Galerkin's method to derive a dispersion relation that captures hydrodynamic coupling and fluid resonance, ultimately providing accurate explicit approximations for wave behavior in broken ice fields.

Lloyd Dafydd, Richard Porter2026-03-17🔬 physics

Flow configuration and pressure effects on turbulent premixed hydrogen jet flames

This study utilizes direct numerical simulation to demonstrate that while turbulent lean premixed hydrogen jet flames exhibit similar macroscopic behavior across slot and round geometries at constant Reynolds numbers, fundamental discrepancies in flame propagation arise from the coupling of geometry-dependent curvature effects and pressure-induced increases in displacement speed sensitivity to local curvature.

T. L. Howarth, T. Lehmann, M. Gauding, H. Pitsch2026-03-17🔬 physics

Unified scaling and shape laws for turbulent premixed methane and hydrogen jet flames

This study establishes a unified scaling framework incorporating flame speed and shape factors that successfully describes the turbulent premixed jet flames of both hydrogen and methane across a wide range of operating conditions, demonstrating that despite hydrogen's distinct thermodiffusive effects, both fuels follow consistent turbulent scaling laws when analyzed within this common model.

Aurora Maffei, Thomas L. Howarth, Marianna Cafiero, Florence Cameron, Michael Gauding, Joachim Beeckmann, Heinz Pitsch2026-03-17🔬 physics

Tuning the shear-thickening of suspensions through surface roughness and physico-chemical interactions

This study demonstrates that both surface roughness and physico-chemical interactions, particularly hydrogen bonding, independently govern the shear-thickening behavior of suspensions, enabling the prediction of continuous shear thickening onset and the fine-tuning of discontinuous shear thickening through particle surface engineering.

Philippe Bourrianne, Vincent Niggel, Gatien Polly, Thibaut Divoux, Gareth H. McKinley2026-03-16🔬 cond-mat.mtrl-sci

Quantum simulation of Burgers turbulence: Nonlinear transformation and direct evaluation of statistical quantities

This paper proposes a novel quantum algorithm that utilizes the Cole-Hopf transformation to solve the nonlinear Burgers equation and efficiently extract its statistical properties, offering an exponential advantage over classical finite difference methods in terms of spatial grid resolution under specific perturbativity conditions.

Fumio Uchida, Koichi Miyamoto, Soichiro Yamazaki, Kotaro Fujisawa, Naoki Yoshida2026-03-16⚛️ quant-ph

A GPU-Accelerated Sharp Interface Immersed Boundary Solver for Large Scale Flow Simulations

This paper presents a GPU-accelerated implementation of the sharp-interface immersed boundary solver ViCar3D using OpenACC, CUDA Fortran, and MPI, which achieves a 20-fold speedup and high scalability on multi-GPU systems to enable large-scale simulations of complex 3D flows with up to 200 million mesh points.

Sushrut Kumar, Joshua Romero, Jung-Hee Seo, Massimiliano Fatica, Rajat Mittal2026-03-16🔬 physics

Polydisperse collision kernels in droplet-laden turbulence with implications for rain formation

Through direct numerical simulations of polydisperse droplets in turbulence, this study reveals how polydispersity differentially affects collision rates across droplet sizes, proposes improved models for the collision kernel and radial distribution function to address existing bidisperse errors, and demonstrates that turbulent intermittency accelerates droplet growth to help overcome the rain formation bottleneck.

L. A. Codispoti, Daniel W. Meyer, Patrick Jenny2026-03-16🔬 physics