A phase-field-based lattice Boltzmann method for two-phase flows with the interfacial mass/heat transferIn this work, we develop a phase-field-based lattice Boltzmann (LB) method for a two-scalar model of the two-phase flows with interfacial mass/heat transfer. Through the Chapman-Enskog analysis, we…Baihui Chen, Chengjie Zhan, Zhenhua Chai et al.·Feb 24, 2024SaveLearn
Attached and separated rotating flow over a finite height ridgeThis paper discusses the effect of rotation on the boundary layer in high Reynolds number flow over a ridge using a numerical method based on stabilised finite elements that captures steady solutions…Stefan Frei, Erik Burman, Edward R Johnson·Feb 23, 2024SaveLearn
Solute transport due to Periodic Loading in a Soft Porous MaterialIn soft porous media, deformation drives solute transport via the intrinsic coupling between flow of the fluid and rearrangement of the pore structure. Solute transport driven by periodic loading, in…Matilde Fiori, Satyajit Pramanik, Christopher W. MacMinn·Feb 23, 2024SaveLearn
Moving load on a floating ice layerThis manuscript investigates the deformation of ice layers under a moving block, focusing on the theoretical framework and mathematical models that describe the mechanical and thermal properties of…Denys Dutykh·Feb 23, 2024SaveLearn
Turbulent flows over porous and rough substratesTurbulent flows over porous substrates are studied via a systematic exploration of the dependence of the flow properties on the substrate parameters, including permeability K, grain pitch L, and…Zengrong Hao, Ricardo García-Mayoral·Feb 23, 2024SaveLearn
Stability of a dispersion of elongated particles embedded in a viscous membraneWe develop a mean-field model to examine the stability of a `quasi-2D suspension' of elongated particles embedded within a viscous membrane. This geometry represents several biological and synthetic…Harishankar Manikantan·Feb 23, 2024SaveLearn
Turbulent Accelerating Combusting Flows with a Methane-Vitiated Air Flamelet ModelThis work presents a numerical study of a diffusion flame in a reacting, two-dimensional, turbulent, viscous, multi-component, compressible mixing layer subject to a large favorable streamwise…Sylvain L. Walsh, Lei Zhan, Carsten Mehring et al.·Feb 23, 2024SaveLearn
Optimal mesh generation for a non-iterative grid-converged solution of flow through a blade passage using deep reinforcement learningAn automatic mesh generation method for optimal computational fluid dynamics (CFD) analysis of a blade passage is developed using deep reinforcement learning (DRL). Unlike conventional automation…Innyoung Kim, Jonghyun Chae, Donghyun You·Feb 23, 2024SaveLearn
Turbulence unsteadiness drives extreme clusteringWe show that the unsteadiness of turbulence has a drastic effect on turbulence parameters and in particle cluster formation. To this end we use direct numerical simulations of particle laden flows…Florencia Zapata, Sofía Angriman, Amélie Ferran et al.·Feb 22, 2024SaveLearn
Wave turbulence: A solvable problem applied to Navier-StokesWave turbulence and eddy turbulence are the two regimes that we may encounter in nature. The attention of fluid mechanics being mainly focused on incompressible hydrodynamics, it is usually the…Sebastien Galtier·Feb 22, 2024SaveLearn
On the difficulty of determining Karman 'constants' from DNSThe difficulty of determining the slope of the famed logarithmic law in the mean velocity profile in wall-bounded turbulent flows, the inverse of the Karman 'constant' , from direct numerical…Peter A. Monkewitz·Feb 22, 2024SaveLearn
The Spatial Whitham EquationThe Whitham equation is a nonlocal, nonlinear partial differential equation that models the temporal evolution of spatial profiles of surface displacement of water waves. However, many laboratory and…John D. Carter, Diane Henderson, Panayotis Panayotaros·Feb 22, 2024SaveLearn
A Principle of Maximum Entropy for the Navier-Stokes EquationsA principle of maximum entropy is proposed in the context of viscous incompressible flow in Eulerian coordinates. The relative entropy functional, defined over the space of L2 divergence-free…Gui-Qiang G. Chen, James Glimm, Hamid Said·Feb 22, 2024SaveLearn
The energetic inception of breaking in surface gravity waves under wind forcingThe breaking of surface gravity waves is a key process contributing to air-sea fluxes and turbulent ocean mixing. The highly nonlinear nature of wave breaking, combined with the challenges of…Daniel G. Boettger, Shane R. Keating, Michael L. Banner et al.·Feb 21, 2024SaveLearn
Effect of retarded friction and added mass on the swimming speed of a vibrating two-sphereA theoretical expression is derived for the mechanical contribution to the mean swimming speed of a vibrating two-sphere immersed in a viscous incompressible fluid. The two spheres are connected by…B. U. Felderhof·Feb 21, 2024SaveLearn
Electrohydrodynamic flows inside a neutrally buoyant leaky dielectric dropWe present for the first time an experimental investigation of electrohydrodynamic (EHD) flows within a neutrally buoyant drop with initial radius of 2.25 mm. Utilizing particle image velocimetry…Joel R. Karp, Bertrand Lecordier, Mostafa S. Shadloo·Feb 21, 2024SaveLearn
Linearity of the co-moving velocityThe co-moving velocity is a new variable in the description of immiscible two-phase flow in porous media. It is the saturation-weighted average over the derivatives of the seepage velocities of the…Alex Hansen·Feb 21, 2024SaveLearn
Penetrative magneto-convection of a rotating Boussinesq flow in f-planesIn this study, we conducted a linear instability analysis of penetrative magneto-convection in rapidly rotating Boussinesq flows within tilted f-planes, under the influence of a uniform background…Fan Xu, Tao Cai·Feb 21, 2024SaveLearn
Geometric derivation and structure-preserving simulation of quasi-geostrophy on the sphereWe present a geometric derivation of the quasi-geostrophic equations on the sphere, starting from the rotating shallow water equations. We utilise perturbation series methods in vorticity and…Erwin Luesink, Arnout Franken, Sagy Ephrati et al.·Feb 21, 2024SaveLearn
Dynamics of bubble migration in a square channel flow of a viscoelastic fluidCross-stream migration of a deformable bubble is investigated computationally in a pressure-driven channel flow of a viscoelastic fluid via interface-resolved simulations. The flow equations are…Hafiz Usman Naseer, Daulet Izbassarov, Zaheer Ahmed et al.·Feb 21, 2024SaveLearn
An Edge-based Interface Tracking (EBIT) Method for Multiphase Flows with Phase ChangeWe present a novel Front-Tracking method, the Edge-Based Interface Tracking (EBIT) method for multiphase flow simulations. In the EBIT method, the markers are located on the grid edges and the…Tian Long, Jieyun Pan, Stéphane Zaleski·Feb 21, 2024SaveLearn
Capillary levelling of thin liquid films of power-law rheologyWe find solutions that describe the levelling of a thin fluid film, comprising a non-Newtonian power-law fluid, that coats a substrate and evolves under the influence of surface tension. We consider…Michael C Dallaston·Feb 21, 2024SaveLearn
Modeling and Simulation of the Evaporation and Drying of a Two Component Slurry DropletIn this paper, we present a mathematical model and numerical simulation of the evaporation and drying process of a liquid droplet containing suspended solids. This type of drying is commonly…Anurag Bhattacharjee, Aswin Gnanaskandan·Feb 21, 2024SaveLearn
An adaptive lattice Green's function method for external flows with two unbounded and one homogeneous directionsWe solve the incompressible Navier-Stokes equations using a lattice Green's function (LGF) approach, including immersed boundaries (IB) and adaptive mesh refinement (AMR), for external flows with one…Wei Hou, Tim Colonius·Feb 20, 2024SaveLearn
On energy-aware hybrid modelsThis study proposes deterministic and stochastic energy-aware hybrid models that should enable simulations of idealized and primitive-equations Geophysical Fluid Dynamics (GFD) models at low…Igor Shevchenko, Dan Crisan·Feb 20, 2024SaveLearn