Electrolubrication in liquid mixtures between two parallel platesWe describe theoretically ``electrolubrication'' in liquid mixtures, the phenomenon where an electric field applied transverse to the confining surfaces leads to concentration gradients that alter…Roni Kroll, Yoav Tsori·Mar 18, 2024SaveLearn
Electrolubrication in flowing liquid mixturesWe describe the ``electrolubrication'' occurring in liquid mixtures confined between two charged surfaces. For a mixture of two liquids, the effective viscosity decreases markedly in the presence of…Yoav Tsori·Mar 18, 2024SaveLearn
A meshless and binless approach to compute statistics in 3D Ensemble PTVWe propose a method to obtain superresolution of turbulent statistics for three-dimensional ensemble particle tracking velocimetry (EPTV). The method is ''meshless'' because it does not require the…Manuel Ratz, Miguel A. Mendez·Mar 18, 2024SaveLearn
Revisiting Tensor Basis Neural Networks for Reynolds stress modeling: application to plane channel and square duct flowsSeveral Tensor Basis Neural Network (TBNN) frameworks aimed at enhancing turbulence RANS modeling have recently been proposed in the literature as data-driven constitutive models for systems with…Jiayi Cai, Pierre-Emmanuel Angeli, Jean-Marc Martinez et al.·Mar 18, 2024SaveLearn
A boostlet transform for wave-based acoustic signal processing in space-timeSparse representation systems that encode signal architecture have had a profound impact on sampling and compression paradigms. Remarkable examples are multi-scale directional systems, which, similar…Elias Zea, Marco Laudato, Joakim Andén·Mar 17, 2024SaveLearn
Journey into SPH Simulation: A Comprehensive Framework and ShowcaseThis report presents the development and results of an advanced SPH (Smoothed Particle Hydrodynamics) simulation framework, designed for high fidelity fluid dynamics modeling. Our framework,…Haofeng Huang, Li Yi·Mar 17, 2024SaveLearn
Stress relaxation and thermo-visco-elastic effects in fluid-filled slits and fluid-loaded platesIn this paper, we theoretically analyse wave propagation in two canonical problems of interest: fluid-filled thermo-visco-elastic slits and fluid-loaded thermo-visco-elastic plates. We show that…Erik García Neefjes, David Nigro, Raphaël C. Assier et al.·Mar 17, 2024SaveLearn
Undulatory swimming in suspensions and networks of flexible filamentsMany biological fluids are composed of suspended polymers immersed in a viscous fluid. A prime example is mucus, where the polymers are also known to form a network. While the presence of this…Adam K. Townsend, Eric E. Keaveny·Mar 16, 2024SaveLearn
Coalescence of non-spherical drops with a liquid surfaceWe employ three-dimensional numerical simulations to explore the impact dynamics of non-spherical drops in a deep liquid pool by varying the aspect ratios (Ar) and Weber numbers (). We…Nagula Venkata Anirudh, Sachidananda Behera, Kirti Chandra Sahu·Mar 16, 2024SaveLearn
Computational Seismic Fracture Synthesis of Tidal Barrage using Enhanced Isotropic Plasticity Damage Mechanics and Coupled Lagrangian-Eulerian Multiphase InteractionMega-engineered hydraulic structures like dams and barrages are critically sensitive to strong ground motion if constructed within the vicinity of triggered fault lines. Collapse post excessive…Sayan Chowdhury, Satya Kiran Raju Alluri, Jayaprakash J et al.·Mar 16, 2024SaveLearn
Elasto-visco-plastic flows in benchmark geometries: I. 4 to 1 Planar ContractionWe present predictions for the flow of elastoviscoplastic (EVP) fluids in the 4 to 1 planar contraction geometry. The Saramito-Herschel-Bulkley fluid model is solved via the finite-volume method with…Milad Mousavi, Yannis Dimakopoulos, John Tsamopoulos·Mar 16, 2024SaveLearn
Torsional parallel plate flow of Herschel-Bulkley fluids with wall slipThe effect of wall slip on the apparent flow curves of viscoplastic materials obtained using torsional parallel plate rheometers is analysed by considering Herschel-Bulkley fluids and assuming that…Evgenios Gryparis, Georgios C. Georgiou·Mar 16, 2024SaveLearn
Wall confinement effects on the dynamics of cavitation bubbles in thin tubesCavitation is a common phenomenon in nature and has numerous applications. In contrast to a cavitation bubble in a free domain, a cavitation bubble in a thin tube is restricted by the tube wall,…Nian Wang, Huashi Xu, Tianyou Wang et al.·Mar 16, 2024SaveLearn
Capturing thin structures in VOF simulations with two-plane reconstructionA novel interface reconstruction strategy for volume of fluid (VOF) methods is introduced that represents the liquid-gas interface as two planes that co-exist within a single computational cell. In…Austin Han, Robert Chiodi, Olivier Desjardins·Mar 15, 2024SaveLearn
Sedimentation Dynamics of Bodies with Two Planes of SymmetryWe show that bodies with two planes of symmetry can display a range of behaviors even without inertia. Any such body supports a conserved quantity in its dynamics, and is either a settler, a drifter…Harshit Joshi, Rama Govindarajan·Mar 15, 2024SaveLearn
Localization-delocalization transition for light particles in turbulenceSmall bubbles in fluids raise to the surface due to Archimede's force. Remarkably, in turbulent flows this process is severely hindered by the presence of vortex filaments, which act as moving…Ziqi Wang, Xander M de Wit, Federico Toschi·Mar 15, 2024SaveLearn
Exact second-order spatio-temporal structure-function relationships in non-stationary incompressible turbulent flows with Reynolds decomposition and phase averagingThe Karman-Howarth-Monin-Hill (KHMH) equation has been widely applied to scale-by-scale turbulent energy cascade studies in recent years, however, the forms and interpretations are not consistent.…Yisheng Zhang, Clara M. Velte·Mar 15, 2024SaveLearn
Gradient dynamics approach to reactive thin-film hydrodynamicsWetting and dewetting dynamics of simple and complex liquids is described by kinetic equations in gradient dynamics form that incorporates the various coupled dissipative processes in a fully…Florian Voss, Uwe Thiele·Mar 15, 2024SaveLearn
Quasi-geostrophic projection of rotating shallow-water equationsWith a new unifying model for layered rotating shallow-water (RSW) and quasi-geostrophic (QG) equations, this paper sheds light on the relation between these two sets of equations. We propose here a…Louis Thiry, Long Li, Etienne Mémin et al.·Mar 15, 2024SaveLearn
Clustering and chaotic motion of heavy inertial particles in an isolated non-axisymmetric vortexWe investigate the dynamics of heavy inertial particles in a flow field due to an isolated, non-axisymmetric vortex. For our study, we consider a canonical elliptical vortex - the Kirchhoff vortex…Anu V. S. Nath, Anubhab Roy·Mar 15, 2024SaveLearn
Pressure fluctuations of liquids under short-time accelerationThis study experimentally investigates the pressure fluctuations of liquids in a column under short-time acceleration and demonstrates that the Strouhal number St [=L/(c t), where L, c,…Chihiro Kurihara, Akihito Kiyama, Yoshiyuki Tagawa·Mar 15, 2024SaveLearn
Stacked Rayleigh-Taylor instabilities grow drops into soft stalactite-like structuresThe interplay between thin film hydrodynamics and solidification produces formidably intricate geophysical structures, such as stalactites and icicles, whose shape is a testimony of their long…Barath Venkateswaran, Trevor J. Jones, Grace Kresge et al.·Mar 14, 2024SaveLearn
Multi-droplet combustion in the presence of homogeneous and heterogeneous atomizationsThe effects of heterogeneous and homogeneous atomizations on combustion dynamics and flame spread rates of multi-droplets are experimentally investigated. The utilized fuel is biodiesel, which is…Sepehr Mosadegh, Sina Kheirkhah·Mar 14, 2024SaveLearn
The effect of spatially-varying collision frequency on the development of the Rayleigh-Taylor instabilityThe Rayleigh-Taylor (RT) instability is ubiquitously observed, yet has traditionally been studied using ideal fluid models. Collisionality can vary strongly across the fluid interface, and previous…John Rodman, James Juno, Bhuvana Srinivasan·Mar 14, 2024SaveLearn
Dynamical pressure boundary condition for weakly-compressible smoothed particle hydrodynamicsThis paper introduces a novel dynamical pressure boundary condition for weakly-compressible smoothed particle hydrodynamics (WCSPH). Unlike previous methods that rely on indirect approaches or ghost…Shuoguo Zhang, Yu Fan, Dong Wu et al.·Mar 14, 2024SaveLearn