Analysis on the mechanical jamming of particle flow using impeller-based rheometerWe simulated the cohesive particle flow in an impeller-based rheometer using Discrete Element Method (DEM), and we focus on the dynamics of particles around the constriction between the blade and its…Wenbin Xuan, Wenguang Nan·Feb 26, 2025SaveLearn
Viscous and Inviscid Reconnection of Vortex Rings on Logarithmic LatticesTo address the possible occurrence of a Finite-Time Singularity (FTS) during the oblique reconnection of two vortex rings, Moffatt-Kimura (MK) (J. Fluid Mech., 2019a; J. Fluid Mech., 2019b) developed…Abhishek Harikrishnan, Adrien Lopez, Bérengère Dubrulle·Feb 26, 2025SaveLearn
Investigation on the Spreading Behaviour of Sand Powder Used in Binder Jet 3D PrintingThe spreading behaviour of cohesive sand powder is modelled by Discrete Element Method, and the spreadability and the mechanical jamming are focused. The empty patches and total particle volume of…Yulun Xu, Lanzhou Ge, Wenguang Nan·Feb 26, 2025SaveLearn
Stokes waves in rotational flows: internal stagnation and overhanging profilesPeriodic travelling waves at the free surface of an incompressible inviscid fluid in two dimensions under gravity are numerically computed for an arbitrary vorticity distribution. The fluid domain…Alex Doak, Vera Mikyoung Hur, Jean-Marc Vanden-Broeck·Feb 25, 2025SaveLearn
Slip and friction at fluid-solid interfaces: Concept of adsorption layerWhen a fluid flows past a solid surface, its macroscopic motion arises from a subtle interplay between microscopic hydrodynamic and thermodynamic effects at the fluid-solid interface. Classical…Haodong Zhang, Fei Wang, Britta Nestler·Feb 25, 2025SaveLearn
Quantum implicit representation of vortex filaments in turbulenceEntangled vortex filaments are essential to turbulence, serving as coherent structures that govern nonlinear fluid dynamics and support the reconstruction of fluid fields to reveal statistical…Chenjia Zhu, Ziteng Wang, Shiying Xiong et al.·Feb 25, 2025SaveLearn
Two-Phase Boiling in a Replaceable Embedded Heat Sink for Ultra-High Heat Flux SiC Chip CoolingWhile Moore's Law has approached its physical limits lately, the high integration and miniaturisation of electronics have also brought another thermal failure obstacle. Previous studies on…Shasha Huo, Bo Sun·Feb 25, 2025SaveLearn
Sensitivity analysis of wavy wall performance in turbulent separation control: Effects of amplitude and period variationsThe influence of transversely oriented sinusoidal wall corrugation on an incompressible isothermal flow in the near-wall region, subjected to adverse pressure gradient conditions at a friction…Piotr Kamiński, Witold Elsner, Artur Tyliszczak et al.·Feb 25, 2025SaveLearn
A novel microfluidic method to produce monodisperse micrometer bubblesWe present a novel microfluidic method to produce quasi-monodisperse bubbles with diameters from tens to very few microns. A gaseous rivulet flows over the shallow groove printed on a T-junction exit…A. Rubio, S. Rodríguez-Aparicio, J. M. Montanero et al.·Feb 24, 2025SaveLearn
Statistical machine learning tools for probabilistic closures of turbulence modelsTurbulent flow remains a challenging subject, despite extensive efforts to find analytical descriptions. Modeling small scales of motion is crucial for saving time and resources in numerical…Julia Domingues Lemos, Fabio Pereira dos Santos·Feb 24, 2025SaveLearn
Rotational effects on the small-scale dynamoUsing direct numerical simulations of forced rotating turbulence, we study the effect of rotation on the growth rate and the saturation level of the small-scale dynamo. For slow rotation rates,…G. Kishore, Nishant K. Singh·Feb 24, 2025SaveLearn
Droplet coalescence kinetics: Coalescence mechanisms and thermodynamic non-equilibrium effects under isothermal and non-isothermal conditionsThis study investigates the droplet coalescence mechanisms and the interplay between various thermodynamic non-equilibrium (TNE) effects under isothermal and non-isothermal conditions kinetically.…Guanglan Sun, Yanbiao Gan, Bin Yang et al.·Feb 24, 2025SaveLearn
Deep-reinforcement-learning-based separation control in a two-dimensional airfoilThe aim of this study is to discover new active-flow-control (AFC) techniques for separation mitigation in a two-dimensional NACA 0012 airfoil at a Reynolds number of 3000. To find these AFC…Xavier Garcia, Arnau Miró, Pol Suárez et al.·Feb 24, 2025SaveLearn
Central-moment-based discrete Boltzmann modeling of compressible flowsIn this work, a central-moment-based discrete Boltzmann method (CDBM) is constructed for fluid flows with variable specific heat ratios. The central kinetic moments are employed to calculate the…Chuandong Lin, Xianli Su, Linlin Fei et al.·Feb 24, 2025SaveLearn
Flow and Noise Control of a Cylinder with Annular PlatesWith the growing demand for electricity and increasing interest in renewable energy, wind turbine noise pollution has become a more pressing issue. Aerodynamic noise not only impacts human well-being…Faezeh Eydi·Feb 23, 2025SaveLearn
Effects of reflection distance on Richtmyer-Meshkov instability in the reshock process: A discrete Boltzmann studyThe Richtmyer-Meshkov (RM) instability occurs when a perturbed interface between two fluids undergoes impulsive acceleration due to a shock wave. In this paper, a numerical investigation of the RM…Huilin Lai, Chuandong Lin, Demei Li et al.·Feb 23, 2025SaveLearn
Quantum lattice Boltzmann method for simulating nonlinear fluid dynamicsQuantum computing holds great promise to accelerate scientific computations in fluid dynamics and other classical physical systems. While various quantum algorithms have been proposed for linear…Boyuan Wang, Zhaoyuan Meng, Yaomin Zhao et al.·Feb 23, 2025SaveLearn
Update hydrological states or meteorological forcings? Comparing data assimilation methods for differentiable hydrologic modelsData assimilation (DA) enables hydrologic models to update their internal states using near-real-time observations for more accurate forecasts. With deep neural networks like long short-term memory…Amirmoez Jamaat, Yalan Song, Farshid Rahmani et al.·Feb 23, 2025SaveLearn
Turbulent-like flows in quasi two-dimensional dense suspensions of motile colloidsDense bacterial suspensions exhibit turbulent-like flows at low Reynolds numbers, driven by the activity of the microswimmers. In this study, we develop a model system to examine these dynamics using…Rui Luo, Alexey Snezhko, Petia M. Vlahovska·Feb 22, 2025SaveLearn
Analysis of In-cylinder Flow Structures and Turbulence in a Laboratory Scale Engine using Direct Numerical SimulationsIn-cylinder flow structures and turbulence characteristics are investigated using direct numerical simulations (DNS) in a laboratory-scale engine at technically relevant engine speeds (1500 and 2500…Bogdan A. Danciu, George K. Giannakopoulos, Mathis Bode et al.·Feb 22, 2025SaveLearn
Direct Numerical Simulation of Hydrogen Combustion in a Real-Size IC EngineThis study presents the first Direct Numerical Simulation (DNS) of hydrogen combustion in a real-size internal combustion engine, investigating the complex dynamics of ignition, flame propagation,…Bogdan A. Danciu, George K. Giannakopoulos, Mathis Bode et al.·Feb 22, 2025SaveLearn
Transition to inverse cascade in turbulent rotating convection in absence of the large-scale vortexTurbulent convection under strong rotation can develop an inverse cascade of kinetic energy from smaller to larger scales. In the absence of an effective dissipation mechanism at the large scales,…Xander M. de Wit·Feb 22, 2025SaveLearn
Data-driven turbulence modelling for magnetohydrodynamic flows in annular pipesWe present a data-driven approach to Reynolds-averaged Navier-Stokes turbulence closure modelling in magnetohydrodynamic (MHD) flows. In these flows the magnetic field interacting with the conductive…Alejandro Montoya Santamaria, Tyler Buchanan, Francesco Fico et al.·Feb 22, 2025SaveLearn
A diffuse boundary method for phase boundaries in viscous compressible flowMany physical systems of interest involve the close interaction of a flow in a domain with complex, time-varying boundaries. Treatment of boundaries of this nature is cumbersome due to the difficulty…Emma M. Boyd, Eric Sandall, Maycon Meier et al.·Feb 22, 2025SaveLearn
Environmental Co-design: Fish-Blade Collision Model for Hydrokinetic TurbinesA major challenge in the deployment of hydrokinetic turbines in aquatic environments is the risk of fish collisions. Traditional fish collision models often oversimplify this risk by neglecting…Eshwanth Asok, Ruo-Qian Wang·Feb 21, 2025SaveLearn