Self-sorting of bidisperse particles in evaporating sessile dropletsThis study investigates the dispersion and self-sorting dynamics of bidisperse particles, i.e., a mixture of two distinct particle sizes, during the evaporation of ethanol droplets on a heated…Aman Kumar Jain, Fabian Denner, Berend van Wachem·Apr 23, 2025SaveLearn
Analysis of surface tension in terms of force gradient per unit area. Part II : Theoretical model of a statistical molecular reorganization gradient at interfacesClassically, surface tension is seen as a force per unit length or as energy per unit area. The surface energy is calculated thermodynamically on the surface of a mathematical layer with no…Andre Schiltz·Apr 23, 2025SaveLearn
Impact of Fuel Injection Temperature Dynamics on the Stability of Liquid Oxygen-Methane Supercritical CombustionA crucial factor in the stability of high-pressure rocket-scale combustors is the temperature at which fuel is injected. This study investigates its effect on the stability of supercritical liquid…Abhishek Sharma, Ashoke De, S. Sunil Kumar·Apr 23, 2025SaveLearn
Study of Auto-igniting Spray Flame in Vitiated Swirling Hot Coflow using flamelet generated modelSwirl-stabilized auto-igniting spray flames are essential for designing efficient and clean combustion systems. The present study performs large eddy simulations (LES) of the dilute auto-igniting…Zafar Alam, Bharat Bhatia, Ashoke De·Apr 23, 2025SaveLearn
An efficient offline sensor placement method for flow estimationWe present an efficient method to optimize sensor placement for flow estimation using sensors with time-delay embedding in advection-dominated flows. Our solution allows identifying promising…Junwei Chen, Marco Raiola, Stefano Discetti·Apr 23, 2025SaveLearn
Impact of Particle Injection Velocity on the Stability of the Particulate Rayleigh-B\'enard SystemThe linear stability of a thermally stratified fluid layer between horizontal walls, where thermal particles are continuously injected at one boundary and extracted at the other - a system known as…Saad Raza, Romulo B. Freitas, Leonardo S. B. Alves et al.·Apr 22, 2025SaveLearn
Upscaling the Navier-Stokes-Cahn-Hilliard model for incompressible multiphase flow in inhomogeneous porous mediaThis work presents a macroscopic model for the flow of two immiscible and incompressible fluids within inhomogeneous porous media. At the pore scale, the flow is governed by the full Navier-Stokes…Chunhua Zhang, Peiyao Liu, Cheng Peng et al.·Apr 22, 2025SaveLearn
Benchmarking machine learning models for predicting aerofoil performanceThis paper investigates the capability of Neural Networks (NNs) as alternatives to the traditional methods to analyse the performance of aerofoils used in the wind and tidal energy industry. The…Oliver Summerell, Gerardo Aragon-Camarasa, Stephanie Ordonez Sanchez·Apr 22, 2025SaveLearn
Reconstruction of three-dimensional fluid stress field via photoelasticity using physics-informed convolutional encoder-decoderMeasuring stress fields in fluids and soft materials is crucial in various fields such as mechanical engineering, medicine, and bioengineering. However, conventional methods that calculate stress…Daichi Igarashi, Shunsuke Kumagai, Yuto Yokoyama et al.·Apr 22, 2025SaveLearn
Optimal body force for heat transfer in turbulent vertical heated pipe flowThe vertical heated-pipe is widely used in thermal engineering applications, as buoyancy can help drive a flow, but several flow regimes are possible: shear-driven turbulence, laminarised flow, and…Shijun Chu, Elena Marensi, Ashley P. Willis·Apr 22, 2025SaveLearn
Scale invariance of intermittency in LES turbulenceTurbulent flows exhibit large intermittent fluctuations from inertial to dissipative scales, characterized by multifractal statistics and breaking the statistical self-similarity. It has recently…B. Magacho, S. Thalabard, M. Buzzicotti et al.·Apr 22, 2025SaveLearn
Radiative equilibrium boundary condition and correlation analysis on catalytic surfaces in DSMCThis study integrates radiative equilibrium boundary conditions on a catalytic surface within the Direct Simulation Monte Carlo (DSMC) method. The radiative equilibrium boundary condition is based on…Youngil Ko, Eunji Jun·Apr 22, 2025SaveLearn
Spontaneous stochasticity and the Armstrong-Vicol passive scalarSpontaneous stochasticity refers to the emergence of intrinsic randomness in deterministic systems under singular limits, a phenomenon conjectured to be fundamental in turbulence. Armstrong and Vicol…W. Ruffenach, E. Simonnet, N. Valade·Apr 22, 2025SaveLearn
Vielbein Lattice Boltzmann approach for fluid flows on spherical surfacesIn this paper, we develop a lattice Boltzmann scheme based on the Vielbein formalism for the study of fluid flows on spherical surfaces. The Vielbein vector field encodes all details related to the…Victor E. Ambrus, Elisa Bellantoni, Sergiu Busuioc et al.·Apr 22, 2025SaveLearn
Numerical Simulation of Reacting and Non-Reacting Liquid Jets in Supersonic CrossflowCanonical jet in supersonic crossflow studies have been widely used to study fundamental physics relevant to a variety of applications. While most JISC works have considered gaseous injection, liquid…Michael Ullman, Shivank Sharma, Venkat Raman·Apr 21, 2025SaveLearn
Aerodynamic Control of Laminar Separation on a Wall-Bounded Airfoil at Transitional Reynolds NumbersExperiments were conducted in a low-turbulence wind tunnel to investigate the efficacy of localised acoustic forcing upon the dynamics and stability of the flow on a cambered, wall-bounded airfoil…Charles Klewicki, Ari Schenkman, Geoffrey Spedding·Apr 21, 2025SaveLearn
The orientation dynamics of a massive ellipsoid in simple shear flowThe orientation dynamics of a massive rigid ellipsoid in simple shear flow of a Newtonian fluid is investigated in detail. The term `massive' refers to dominant particle inertia, as characterized by…Giridar Vishwanathan, Sangamesh Gudda, Ganesh Subramanian·Apr 21, 2025SaveLearn
On the consistency of pseudo-potential lattice Boltzmann methodsWe derive the partial differential equation (PDE) to which the pseudo-potential lattice Boltzmann method (P-LBM) converges under diffusive scaling, providing a rigorous basis for its consistency…Luiz Eduardo Czelusniak, Tim Niklas Bingert, Mathias J. Krause et al.·Apr 21, 2025SaveLearn
A novel hybrid neural network of fluid-structure interaction prediction for two cylinders in tandem arrangementDeep learning has shown promise in improving computing efficiency while ensuring modeling accuracy in fluid-structure interaction (FSI) analysis. However, its current capabilities are limited when it…Yanfang Lyu, Yunyang Zhang, Zhiqiang Gong et al.·Apr 21, 2025SaveLearn
Long-Time Asymptotics of Passive Scalar Transport in Periodically Modulated ChannelsThis work investigates the long-time asymptotic behavior of a diffusing passive scalar advected by fluid flow in a straight channel with a periodically varying cross-section. The goal is to derive an…Lingyun Ding·Apr 20, 2025SaveLearn
On the development of OpenFOAM solvers for simulating MHD micropolar fluid flows with or without the effect of micromagnetorotationAny micropolar fluid containing magnetic particles, such as blood or ferrofluids, subjected to an external magnetic field experiences a magnetic torque due to the misalignment between particle…Kyriaki-Evangelia Aslani, Ioannis E. Sarris, Efstratios Tzirtzilakis·Apr 20, 2025SaveLearn
LBM-GNN: Graph Neural Network Enhanced Lattice Boltzmann MethodIn this paper, we present LBM-GNN, a novel approach that enhances the traditional Lattice Boltzmann Method (LBM) with Graph Neural Networks (GNNs). We apply this method to fluid dynamics simulations,…Yue Li·Apr 20, 2025SaveLearn
Conditional flow matching for generative modeling of near-wall turbulence with quantified uncertaintyReconstructing near-wall turbulence from wall-based measurements is a critical yet inherently ill-posed problem in wall-bounded flows, where limited sensing and spatially heterogeneous flow-wall…Meet Hemant Parikh, Xiantao Fan, Jian-Xun Wang·Apr 20, 2025SaveLearn
Invariance-embedded Machine Learning Sub-grid-scale Stress Models for Meso-scale Hurricane Boundary Layer Flow Simulation I: Model Development and a priori StudiesThis study develops invariance-embedded machine learning sub-grid-scale (SGS) stress models admitting turbulence kinetic energy (TKE) backscatter towards more accurate large eddy simulation (LES) of…Md Badrul Hasan, Meilin Yu, Tim Oates·Apr 20, 2025SaveLearn
The Onset of Metastable Turbulence in Pipe FlowThe onset of turbulence in pipe flow has been a fundamental challenge in physics, applied mathematics, and engineering for over 140 years. To date, the precursor of this laminar-turbulent transition…Jiashun Guan, Jianjun Tao·Apr 20, 2025SaveLearn