Velocity dip in turbulent mixed convection of an open Poiseuille-Rayleigh-B\'enard channelWe study the emergence of a velocity-dip phenomenon in turbulent mixed convection in open Poiseuille-Rayleigh-B\'enard (PRB) channels with a free-slip upper boundary. Three-dimensional direct…Ben-Rui Xu, Ao Xu, Heng-Dong Xi·Dec 24, 2025SaveLearn
Geese achieve stationary takeoff via synergistic wing kinematics and enhanced aerodynamicsStationary take-off, without a running start or elevated descent, requires substantial aerodynamic forces to overcome weight, particularly for large birds such as geese exceeding 2 kg. However, the…Jinpeng Huang, Yang Xiang, Lunbing Chen et al.·Dec 24, 2025SaveLearn
Effects of External Magnetic Fields on the Multi-mode Rayleigh-Taylor InstabilityThe magneto-Rayleigh-Taylor instability (mRTI) is a key process in inertial confinement fusion and is thought to be widespread in the interstellar medium, where it can concentrate plasma into…Xin Bian, Riccardo Betti, Dongxiao Zhao et al.·Dec 24, 2025SaveLearn
Droplet Breakup Against an Isolated ObstacleWe describe combined experiments and simulations of droplet breakup during flow-driven interactions with a circular obstacle in a quasi-two-dimensional microfluidic chamber. Due to a lack of in-plane…David J. Meer, Shivnag Sista, Mark D. Shattuck et al.·Dec 23, 2025SaveLearn
Interphase coupling for gas-droplet flows using the fully Lagrangian approachA novel method combining the fully Lagrangian approach (FLA) and kernel regression has been developed for two-way coupled simulations of evaporating sprays. The carrier phase is incompressible…C. P. Stafford, O. Rybdylova·Dec 23, 2025SaveLearn
Spacetime-spectral analysis of flowfieldsThe classical Fourier analysis of a time signal, in the discrete sense, provides the frequency content of signal under the assumption of periodicity. Although the original signal can be exactly…Vilas J. Shinde·Dec 23, 2025SaveLearn
How fast can a liquid metal drop respond to a time-dependent electrocapillary excitation?Gallium alloys are promising materials in biomedical engineering, electronics, and wireless communications, thanks to their good conductivity, non toxicity and their ability to sustain large…Javier Otero Martinez, Ana Garcia Armada, Yi Li et al.·Dec 23, 2025SaveLearn
Three-dimensional mesh adaptation in PFEMChaotic free surface flows are challenging problems to simulate numerically, mainly due to the significant changes in geometry and frequent topological changes. Methods that track the evolution of…Thomas Leyssens, Jonathan Lambrechts, Jean-François Remacle·Dec 23, 2025SaveLearn
Energy-conserving finite difference scheme for compressible magnetohydrodynamic flow at low Mach numbers using nonconservative Lorentz forceIn magnetohydrodynamic (MHD) flows, incompressibility is assumed for low Mach numbers. However, even at low Mach numbers, the Mach number influences flow and magnetic fields. Therefore, it is…Hideki Yanaoka·Dec 23, 2025SaveLearn
GIMLET: Generalizable and Interpretable Model Learning through Embedded ThermodynamicsWe develop a data-driven framework for discovering constitutive relations in models of fluid flow and scalar transport. Under the assumption that velocity and/or scalar fields are measured, our…Suguru Shiratori, Elham Kiyani, Khemraj Shukla et al.·Dec 22, 2025SaveLearn
Dynamics of jet formation and collapse for axisymmetric surface gravity waves: coupled 3D potential flow and SPH simulationsAxisymmetric waves occur across a wide range of scales. This study analyses large-scale gravity-dominated axisymmetric waves, with jet heights of up to 6 m, for which surface-tension effects are…Taiga Kanehira, Peter K. Stansby, Benedict D. Rogers et al.·Dec 22, 2025SaveLearn
Exact Coherent Structures of Sheared Double-Diffusive ConvectionThe interaction between shear and double-diffusive convection (DDC) in the diffusive regime (cold fresh water on top of hot salty water) plays an important role in the heat and mass transport of…Van Duc Nguyen, Chang Liu·Dec 22, 2025SaveLearn
Towards a Statistical Validation of the Critical Wave Groups Method for Free-Running Vessels in Beam SeasResearch on the statistics of extreme events using deterministic wave group methods has largely been simplified to vessels at zero or constant speed and heading. In contrast, free-running vessels…Kevin M. Silva, Kevin J. Maki·Dec 22, 2025SaveLearn
Energy dissipation mechanisms in an acoustically-driven slitWe quantify how incident acoustic energy is converted into vortical motion and viscous dissipation for a two-dimensional plane-wave passing through a slit geometry. We perform direct numerical…Haocheng Yu, Tianyi Chu, Spencer H. Bryngelson·Dec 22, 2025SaveLearn
Ferro-hydrodynamics of droplet necking filamentsWe explore the necking, filament thinning, and pinchoff dynamics of ferrofluid droplets within a magnetic field, via a simple and low-cost experimental method. In our studies, both the Ohnesorge…Neeladri Sekhar Bera, Apurba Roy, Purbarun Dhar·Dec 22, 2025SaveLearn
A Critical Assessment of Pattern Comparisons Between POD and Autoencoders in Intraventricular FlowsUnderstanding intraventricular hemodynamics requires compact and physically interpretable representations of the underlying flow structures, as characteristic flow patterns are closely associated…Eneko Lazpita, Andrés Bell-Navas, Jesús Garicano-Mena et al.·Dec 22, 2025SaveLearn
Unifying formalism and closures for coarse-grained approaches to turbulenceWe propose the use of an unifying paradigm for the assessment and development of closed forms of the coarse-grained Navier-Stokes equations in approaches ranging from the statistical to the…A. Cimarelli, N. Marras, B. Niceno et al.·Dec 22, 2025SaveLearn
Formation of external particle jets on a spherical particle bed subjected to strong explosive loadingWe report the mechanism for the formation of external particle jets on a spherical particle bed subjected to strong explosive loading, revealing a critical dependence on particle size. Under strong…Yifeng He, Junsheng Zeng, Baolin Tian et al.·Dec 22, 2025SaveLearn
Discrete inflow and drainage dynamics of a thin film over a stalagmite of variable shapeStalagmites in karstic caves preserve valuable palaeoclimate records through calcium-rich layered deposits, presenting curvature variations both across and within individual stalagmites. Stalagmites…Justine Parmentier, Vincent E. Terrapon, Tristan Gilet·Dec 21, 2025SaveLearn
Data-driven detached-eddy simulations based on explicit algebraic stress expressions for turbulent flowsThis work proposes a data-driven explicit algebraic stress-based detached-eddy simulation (DES) method. Despite the widespread use of data-driven methods in model development for both…Hao-Chen Liu, Zifei Yin, Xin-Lei Zhang et al.·Dec 21, 2025SaveLearn
Spectral Reconstruction for Under-Resolved Turbulence Measurements Using a Variational Cutoff Dissipation ModelThis technical note addresses the challenge of accurate turbulence characterization using robust, bandwidth-limited sensors which fail to resolve the high-wavenumber dissipation range. To correct the…Rishabh Mishra·Dec 21, 2025SaveLearn
Unraveling the effects of atmospheric dynamics on wakes with a controlled synthetic inflow methodologyWinds in the atmospheric boundary layer (ABL) display a wide range of velocity profiles and turbulence properties that affect wind turbine wake dynamics. However, standard concurrent-precursor large…Kirby S. Heck, Michael F. Howland·Dec 20, 2025SaveLearn
An energetically and thermodynamically consistent Boussinesq modelThe Boussinesq approximation is a cornerstone of geophysical fluid dynamics, yet its thermodynamic and energetic underpinnings have remained ambiguous. In standard formulations, the links with the…R. Tailleux, T. Dubos, B. J. Hatton·Dec 20, 2025SaveLearn
Pressure-Free Surface-Induced Flow by Geometric RectificationPressure-driven flow collapses when confined (u r2). Asymmetry rectifies surface activity (exchange or slip gradients) into axial flux at P=0 despite zero net exchange. Lorentz…Zheng Li·Dec 20, 2025SaveLearn
Performance of Flamelet Models with Epsilon Tracking for Diffusion Flame SimulationsThis work examines the physical consistency of the conventional Flamelet Progress Variable (FPV) model for diffusion flame simulations and and introduces a new compressible flamelet formulation that…Sylvain L. Walsh, Yalu Zhu, Feng Liu et al.·Dec 20, 2025SaveLearn