Modelling anisotropic Cahn-Hilliard equation with the lattice Boltzmann methodThe anisotropic Cahn-Hilliard equation is often used to model the formation of faceted pyramids on nanoscale crystal surfaces. In comparison to the isotropic Cahn-Hilliard model, the nonlinear terms…Xinyue Liu, Lei Wang, Chenrui Liu·Jan 7, 2025SaveLearn
A mixing length model for arbitrary geometry: the case of parallel flowsWe present a phenomenological model for the mixing length used in turbulence models. It has the advantage of naturally accounting for the object's geometry while satisfying the standard symmetries of…Vincent Labarre, Christophe Josserand, Martine Le Berre et al.·Jan 7, 2025SaveLearn
Predicting the dynamics of a gas pocket during breaking wave impacts using machine learningWe investigate the feasibility and accuracy of a machine learning model to predict the dynamics of a gas pocket that is formed when a breaking wave impacts on a solid wall. The proposed ML model is…Rodrigo Ezeta, Bulent Düz·Jan 7, 2025SaveLearn
Free surface topography of capillary flows using spatiotemporal phase shifting profilometryWe present a novel experimental technique to characterize the free surface of capillary flows adapted from the Spatio-Temporal Phase Shifting Profilometry (ST-PSP) method introduced by Ri et al.…Hélie de Miramon, Wladimir Sarlin, Axel Huerre et al.·Jan 7, 2025SaveLearn
Turbulence modeling over riblets via domain transformationNumerical and experimental studies have demonstrated the drag-reducing potential of carefully designed streamwise-elongated riblets in lowering skin-friction drag. To support the systematic design of…Mohammadamin Naseri, Armin Zare·Jan 7, 2025SaveLearn
Investigation of coalescence and pinch-off processes of a self-rewetting drop interacting with a liquid layerSelf-rewetting fluids (SRFs), such as long-chain aqueous alcohols, are a special class of liquids with surface tension that is anomalously dependent quadratically on temperature, resulting in…Bashir Elbousefi, William Schupbach, Kannan N. Premnath et al.·Jan 7, 2025SaveLearn
Interface reconstruction of adhering droplets for distortion correction using glare points and deep learningThe flow within adhering droplets subjected to external shear flows has a significant influence on the stability and eventual detachment of the droplets from the surface. Most commonly, the velocity…Maximilian Dreisbach, Itzel Hinojos, Jochen Kriegseis et al.·Jan 7, 2025SaveLearn
Geophysical flows over topography, a playground for laboratory experimentsPhysicists face major challenges in modelling multi-scale phenomena that are observed in geophysical flows (e.g. in the Earth's oceans and atmosphere, or liquid planetary cores). In particular,…Jérémie Vidal, Jérôme Noir, David Cébron et al.·Jan 6, 2025SaveLearn
Slim multi-scale convolutional autoencoder-based reduced-order models for interpretable features of a complex dynamical systemIn recent years, data-driven deep learning models have gained significant interest in the analysis of turbulent dynamical systems. Within the context of reduced-order models (ROMs), convolutional…Philipp Teutsch, Philipp Pfeffer, Mohammad Sharifi Ghazijahani et al.·Jan 6, 2025SaveLearn
Analytical solution for the hydrodynamic resistance of a disk in a compressible fluid layer with odd viscosity on a rigid substrateChiral active fluids can exhibit odd viscosity, a property that breaks the time-reversal and parity symmetries. Here, we examine the hydrodynamic flows of a rigid disk moving in a compressible 2D…Abdallah Daddi-Moussa-Ider, Andrej Vilfan, Yuto Hosaka·Jan 6, 2025SaveLearn
Super-fast bullet bubbles transported in a pressure-driven cylindrical flowWhen transported by a pressure driven flow in a cylindrical pipe, bubbles may exhibit very fast velocities. In this paper, we show that, when the bubbles are largely deformable, that is, at large…Jean Cappello, Javier Rivero-Rodriguez, Benoit Scheid·Jan 6, 2025SaveLearn
Gas bubble dynamicsThe study of gas bubble dynamics in liquids is justified by the numerous applications and natural phenomena where this two-phase flow is encountered. Gas bubbles move as forces are applied to them;…Dominique Legendre, Roberto Zenit·Jan 6, 2025SaveLearn
Viscotaxis of chiral microswimmer in viscosity gradientsMicroswimmers display an intriguing ability to navigate through fluids with spatially varying viscosity, a behavior known as viscotaxis, which plays a crucial role in guiding their motion. In this…Takuya Kobayashi, Ryoichi Yamamoto·Jan 6, 2025SaveLearn
The Effect of Shear-Thinning Rheology on the Dynamics and Pressure Distribution of a Single Rigid Ellipsoidal Particle in Viscous Fluid FlowThis paper evaluates the behavior of a single rigid ellipsoidal particle suspended in homogenous viscous flow with a power-law Generalized Newtonian Fluid (GNF) rheology using a custom-built finite…Aigbe Awenlimobor, Douglas E. Smith·Jan 5, 2025SaveLearn
Foam stabilization in salt solutions : the role of capillary drainage and Marangoni stressesThe long-standing question of why foaming is easier in seawater than in freshwater remains unresolved. In this study, we address this issue through precise interferometry single bubble experiments,…Ekta Sharma, Suraj Borkar, Philipp Baumli et al.·Jan 5, 2025SaveLearn
Stationary states of forced two-phase turbulenceIn this work, we perform numerical simulations of forced two-phase isotropic turbulence to study the stationary states of a two-phase mixture. We first formulate three different approaches to force a…Suhas S Jain, Ahmed Elnahhas·Jan 5, 2025SaveLearn
Wave or Physics-Appropriate Multidimensional Upwinding Approach for Compressible Multiphase FlowsThis paper introduces multidimensional algorithms for simulating multiphase flows, leveraging the wave structure of the Euler equations in characteristic space and the physical properties of…Amareshwara Sainadh Chamarthi·Jan 5, 2025SaveLearn
Unsteady load alleviation on highly flexible bio-inspired wings in longitudinally oscillating freestreamsThis study delves into the aerodynamic behavior of a highly flexible NACA 0012 aerofoil, drawing inspiration from avian feathers to handle a gust. We first examined unsteady flow on a rigid wing both…Álvaro Martínez-Sánchez, Álvaro Achirica-Villameriel, Nicolas Doué et al.·Jan 4, 2025SaveLearn
Tertiary EOR-like microfluidic experiments: influence of viscosity ratio on oil clusters mobilizationUnderstanding the pore-scale dynamics of immiscible two-phase flow in porous media is crucial 9 for optimizing EOR strategies. In this work, we investigate the mobilization dynamics of oil clusters…Haohong Pi, Abdelaziz Omari, Giuseppe Sciumè·Jan 4, 2025SaveLearn
Spectral proper orthogonal decomposition of rapid snapshot pairs sampled at sub-Nyquist intervalsModal decomposition methods are important for characterizing the low-dimensional dynamics of complex systems, including turbulent flows. Different methods have varying data requirements and produce…Caroline Cardinale, Steven L. Brunton, Tim Colonius·Jan 3, 2025SaveLearn
The onset of nonpenetrative convection in a suddenly cooled layer of fluidConditions for the onset of nonpenetrative convection in a horizontal Boussinesq fluid layer subject to a step change in temperature are studied using propagation theory. A wide range of Prandtl…C F Ihle, Y Niño·Jan 3, 2025SaveLearn
Turbulence-Resolving Integral Simulations for Wall-Bounded FlowsThe physical fidelity of turbulence models can benefit from a partial resolution of fluctuations, but doing so often comes with an increase in computational cost. To explore this trade-off in the…Tanner Ragan, Mark Warnecke, Samuel T. Stout et al.·Jan 3, 2025SaveLearn
Optimally time-dependent modes of vortex gust-airfoil interactionsWe find the optimally time-dependent (OTD) orthogonal modes about a time-varying flow generated by a strong gust vortex impacting a NACA 0012 airfoil. This OTD analysis reveals the amplification…Yonghong Zhong, Alireza Amiri-Margavi, Hessam Babaee et al.·Jan 3, 2025SaveLearn
On the Separating Flow Behind a Cylinder: Insights from the Principle of Minimum Pressure GradientWe study the separating flow over a circular cylinder with two objectives: (i) to demonstrate the validity of the condition of matching curvature, and (ii) to obtain a reasonable estimate of the…Mohamed Shorbagy, Haithem Taha·Jan 3, 2025SaveLearn
Detecting Turbulent Patterns in Particulate Pipe Flow by Streak Angle VisualizationDetecting the transition from laminar to turbulent flow in particulate pipe systems remains a complex issue in fluid dynamics, often requiring sophisticated and costly experimental apparatus. This…Rishav Raj, Abhiram Thiruthummal, Alban Potherat·Jan 3, 2025SaveLearn