Kinetics of Rayleigh-Taylor instability in van der Waals fluid: the influence of compressibilityEarly studies on Rayleigh-Taylor instability (RTI) primarily relied on the Navier-Stokes (NS) model. As research progresses, it becomes increasingly evident that the kinetic information that the NS…Jie Chen, Aiguo Xu, Yudong Zhang et al.·Jul 2, 2024SaveLearn
Mass crystals and cage effect in vorticity crystalsWe study the motion of tiny heavy inertial particles advected by a two dimensional inviscid fluid flow composed of N identical point vortices regularly placed on a ring, and forming a crystal. In…Jean-Régis Angilella·Jul 2, 2024SaveLearn
Lift generation on a sphere through asymmetric roughness using active surface morphingThis study investigates a novel phenomenon of lift generation around a sphere by pneumatically manipulating its surface topology with an asymmetric roughness distribution. A comprehensive series of…Rodrigo Vilumbrales-Garcia, Putu Brahmanda Sudarsana, Anchal Sareen·Jul 1, 2024SaveLearn
Unification theory of instabilities of visco-diffusive swirling flowsA universal theory of linear instabilities in swirling flows, occurring in both natural settings and industrial applications, is formulated. The theory encompasses a wide range of open and confined…Oleg N. Kirillov, Innocent Mutabazi·Jul 1, 2024SaveLearn
A Josephson-Anderson relation for drag in classical channel flows with streamwise periodicity: Effects of wall roughnessThe detailed Josephson-Anderson relation equates instantaneous work by pressure drop over any streamwise segment of a general channel and wall-normal flux of spanwise vorticity spatially integrated…Samvit Kumar, Gregory Eyink·Jul 1, 2024SaveLearn
A thermodynamically consistent phase-field lattice Boltzmann method for two-phase electrohydrodynamic flowsIn this work, we aim to develop a phase-field based lattice Boltzmann (LB) method for simulating two-phase electrohydrodynamics (EHD) flows, which allows for different properties (densities,…Fang Xiong, Lei Wang, Jiangxu Huang et al.·Jul 1, 2024SaveLearn
Dynamic Triad Interactions and Evolving Turbulence -- Part 2: Implications for Practical SignalsWe investigate how momentum and kinetic energy is transferred between Fourier components (the so-called triad interactions) in measured turbulent flow fields, i.e. in practical, discretely sampled…Preben Buchhave, Clara Velte·Jul 1, 2024SaveLearn
Phase-field modeling of dendritic growth with gas bubbles in the solidification of binary alloysIn this work, a phase-field model is developed for the dendritic growth with gas bubbles in the solidification of binary alloys. In this model, a total free energy for the complex gas-liquid-dendrite…Chengjie Zhan, Zhenhua Chai, Dongke Sun et al.·Jul 1, 2024SaveLearn
Orbital cluster-based network modellingWe propose a novel reduced-order methodology to describe complex multi-frequency fluid dynamics from time-resolved snapshot data. Starting point is the Cluster-based Network Model (CNM) thanks to its…Antonio Colanera, Nan Deng, Matteo Chiatto et al.·Jul 1, 2024SaveLearn
Relevance of the Basset history term for Lagrangian particle dynamicsThe movement of small but finite spherical particles in a fluid can be described by the Maxey-Riley equation (MRE) if they are too large to be considered passive tracers. The MRE contains an integral…Julio Urizarna-Carasa, Daniel Ruprecht, Alexandra von Kameke et al.·Jul 1, 2024SaveLearn
2.5D turbulence in shear-thinning jetsThe dimensional transition in turbulent jets of a shear-thinning fluid is studied via direct numerical simulations. Our findings reveal that under vertical confinement, the flow exhibits a unique…Christian Amor, Giovanni Soligo, Andrea Mazzino et al.·Jul 1, 2024SaveLearn
Turbulence modulation in liquid-liquid two-phase Taylor-Couette turbulenceWe investigate the coupling effects of the two-phase interface, viscosity ratio, and density ratio of the dispersed phase to the continuous phase on the flow statistics in two-phase Taylor-Couette…Jinghong Su, Cheng Wang, Yi-bao Zhang et al.·Jul 1, 2024SaveLearn
NeurIPS 2024 ML4CFD Competition: Harnessing Machine Learning for Computational Fluid Dynamics in Airfoil DesignThe integration of machine learning (ML) techniques for addressing intricate physics problems is increasingly recognized as a promising avenue for expediting simulations. However, assessing…Mouadh Yagoubi, David Danan, Milad Leyli-abadi et al.·Jun 30, 2024SaveLearn
Influence of fluid rheology on multistability in the unstable flow of polymer solutions through pore constriction arraysDiverse chemical, energy, environmental, and industrial processes involve the flow of polymer solutions in porous media. The accumulation and dissipation of elastic stresses as the polymers are…Emily Y. Chen, Sujit S. Datta·Jun 30, 2024SaveLearn
Generative prediction of flow fields around an obstacle using the diffusion modelWe propose a geometry-to-flow diffusion model that utilizes obstacle shape as input to predict a flow field around an obstacle. The model is based on a learnable Markov transition kernel to recover…Jiajun Hu, Zhen Lu, Yue Yang·Jun 30, 2024SaveLearn
Modeling film flows down a rotating slippery cylinderThis study investigates the nonlinear stability and dynamics of gravity-driven viscous films on a vertical rotating cylinder, considering both outer and inner surface flows with slip conditions at…Souradip Chattopadhyay, Amar K. Gaonkar, Hangjie Ji·Jun 30, 2024SaveLearn
Boiling stratified flow: a laboratory analogy for atmospheric moist convectionWe present a novel laboratory experiment, boiling stratified flow, as an analogy for atmospheric moist convection. A layer of diluted syrup is placed below freshwater in a beaker and heated from…Hao Fu, Claudia Cenedese, Adrien Lefauve et al.·Jun 30, 2024SaveLearn
Bridging Large Eddy Simulation and Reduced Order Modeling of Convection-Dominated Flows through Spatial Filtering: Review and PerspectivesReduced order models (ROMs) have achieved a lot of success in reducing the computational cost of traditional numerical methods across many disciplines. For convection-dominated (e.g., turbulent)…Annalisa Quaini, Omer San, Alessandro Veneziani et al.·Jun 28, 2024SaveLearn
Neural Differentiable Modeling with Diffusion-Based Super-resolution for Two-Dimensional Spatiotemporal TurbulenceSimulating spatiotemporal turbulence with high fidelity remains a cornerstone challenge in computational fluid dynamics (CFD) due to its intricate multiscale nature and prohibitive computational…Xiantao Fan, Deepak Akhare, Jian-Xun Wang·Jun 28, 2024SaveLearn
Data-driven methods for flow and transport in porous media: a reviewThis review examined the current advancements in data-driven methods for analyzing flow and transport in porous media, which has various applications in energy, chemical engineering, environmental…Guang Yang, Ran Xu, Yusong Tian et al.·Jun 28, 2024SaveLearn
A Python-based flow solver for numerical simulations using an immersed boundary method on single GPUsWe present an efficient implementation for running three-dimensional numerical simulations of fluid-structure interaction problems on single GPUs, based on Nvidia CUDA through Numba and Python. The…M. Guerrero-Hurtado, J. M. Catalán, M. Moriche et al.·Jun 28, 2024SaveLearn
Compressible and immiscible fluids with arbitrary density ratioFor the water-air system, the bulk density ratio is as high as about 1000; no model can fully tackle such a high density ratio system. In the Navier-Stokes and Euler equations, the density …Fei Wang·Jun 28, 2024SaveLearn
Momentum and kinetic energy transport in supersonic particle-laden turbulent boundary layersIn the present study, we conduct direct numerical simulations of two-way force-coupled particle-laden compressible turbulent boundary layers at the free-stream Mach number of 2.0 for the purpose of…Ming Yu, Yibin Du, Qian Wang et al.·Jun 28, 2024SaveLearn
Implementation of two-dimensional selective acoustic tweezers merely using four straight interdigitated transducers:a numerical proof of concept of radiation field synthesis by pulsed acoustic wavesSelective acoustic tweezers can focus the acoustic radiation force on a single particle to manipulate it without affecting its neighbors. This has long required highly complex hardware. In this…Shuhan Chen, Jia Zhou, Antoine Riaud·Jun 27, 2024SaveLearn
JAX-based differentiable fluid dynamics on GPU and end-to-end optimizationThis project aims to advance differentiable fluid dynamics for hypersonic coupled flow over porous media, demonstrating the potential of automatic differentiation (AD)-based optimization for…Wenkang Wang, Xuanwei Zhang, Deniz Bezgin et al.·Jun 27, 2024SaveLearn