Deep Learning Surrogates for Gas Dynamics: A Physics-Informed Pedagogical ApproachCompressible flow problems are characterized by highly nonlinear, implicit, and often transcendental governing equations. In undergraduate gas dynamics education, solving these equations…Ehsan Roohi·Dec 9, 2025SaveLearn
Aerodynamic Forces on a Wing Surfing in a Two-dimensional Vortex WakeInspired by the wake-surfing nature of animals, this study aims to understand the aerodynamic force variation on a wing surfing in an unsteady 2-D wake. Wind tunnel experiments were conducted using…Siyang Hao, Kenneth Breuer·Dec 9, 2025SaveLearn
Predictive Compressibility Transformation for Hypersonic Turbulent Boundary Layers with Cold WallsCompressibility transformations are used to relate hypersonic zero-pressure-gradient (ZPG) turbulent boundary layers (TBLs) to incompressible reference states, but their assessment has largely…Engin Danis·Dec 9, 2025SaveLearn
Simulating surfactant effects in phase-transforming fluidsSurfactants are critical in natural processes and engineering, but measuring their concentrations in non-equilibrium conditions and in the presence of flow is difficult. Therefore, computational…Keyu Feng, Saikat Mukherjee, Tianyi Hu et al.·Dec 9, 2025SaveLearn
Accelerating high-order energy-stable discontinous Galerkin solver using auto-differentiation and neural networksHigh-order Discontinuous Galerkin Spectral Element Methods (DGSEM) provide excellent accuracy for complex flow simulations, but their computational cost increases sharply with higher polynomial…Xukun Wang, Oscar A. Marino, Esteban Ferrer·Dec 9, 2025SaveLearn
Conserved Pseudomomenta in Linear Quasigeostrophic Fluid Flows From Noether's TheoremHamiltonian and Lagrangian formulations for the two-dimensional quasi-geostrophic equations linearized about a zonally-symmetric basic flow are presented. The Lagrangian and Hamiltonian exhibit an…Dusan Begus, Chenyu Zhang, J. B. Marston·Dec 9, 2025SaveLearn
Axial Symmetric Navier Stokes Equations and the Beltrami /anti Beltrami spectrum in view of Physics Informed Neural NetworksIn this paper, I further continue an investigation on Beltrami Flows began in 2015 with A. Sorin and amply revised and developed in 2022 with M. Trigiante. Instead of a compact 3-torus…Pietro Fré·Dec 9, 2025SaveLearn
Long-time evolution of density layers and interfaces in forced stably-stratified flowsStably stratified fluids subject to sustained forcing are known to develop step-like density "staircases", where nearly homogeneous layers alternate with thin interfaces of strong stratification.…Niccolo Cocciaglia, Fabio Bonaccorso, Alessandra Sabina Lanotte et al.·Dec 9, 2025SaveLearn
Centrifugal instability of Taylor-Couette flow in stratified and diffusive fluidsThe linear and non-linear dynamics of centrifugal instability in Taylor-Couette flow are investigated when fluids are stably stratified and highly diffusive. One-dimensional local linear stability…Junho Park·Dec 9, 2025SaveLearn
Stretching and breaking of particles in compressible random flowsA key feature of turbulent suspensions that involve floating particles on the surface or inertial particles in the bulk is the compressibility of the effective particle-phase velocity field. Little,…Dipankar Roy, Marco Martins Afonso, Jason R. Picardo et al.·Dec 9, 2025SaveLearn
Transition in elastic Dean flow: the centre-mode versus hoop-stress pathwaysWe analyse the stability of viscoelastic Dean flow (flow of an elastic fluid through a curved two-dimensional channel, driven by an azimuthal pressure gradient) in the absence of fluid inertia. This…P. S. D. Surya Phani Tej, Ganesh Subramanian, V. Shankar·Dec 9, 2025SaveLearn
Scalable CFD Simulations in Multi-Billion Voxel Micro-CT Images of Porous Materials Using OpenFOAM on ARCHER2This study investigates the use of High-Performance Computing (HPC) to simulate flow and transport in ultra-large micro-CT images of porous materials using Computational Fluid Dynamics (CFD). Two…J. Maes, Gavin J. Pringle, Hannah P. Menke·Dec 9, 2025SaveLearn
Dynamics of an internally actuated weakly elastic sphere in a general quadratic flowInternally actuated elastic particles are widely used in biomedical applications. It is imperative to understand the dynamics of such particles in pressure-driven microfluidic devices to manipulate…Shashikant Verma, Navaneeth K. Marath·Dec 9, 2025SaveLearn
Hydroacoustic Absorption and Amplification by TurbulenceAcoustic waves propagating through fluid media are significantly influenced by turbulence. This paper experimentally investigates the influence of underwater turbulence on the propagation…Kai-Xin Hu, Yue-Jin Hu·Dec 8, 2025SaveLearn
Fold catastrophe in breaking wavesWe present a dynamical-systems perspective on wave breaking for ideal incompressible free-surface flows. By tracking the most energetic hotspot on the wave surface, we find that near breaking the…Francesco Fedele·Dec 8, 2025SaveLearn
Memory effects in wave-induced microplastic transportMicroplastics are transported by ocean surface waves in ways that depart significantly from the Stokes drift of fluid parcels, and accurate modeling of this transport requires accounting for forces…Mary Eby, Cathal Cummins·Dec 8, 2025SaveLearn
Preliminary Study of the Effects of Leading-Edge Serration on a Two-Section Planar Wing in ground-effect at Low Reynolds NumberA preliminary study has been conducted on the effects of serration on the leading-edge of a two-element trapezoidal wing placed both out-of- and in-ground effect. Aerodynamic performance and flow…Arnold Lafond-Saunierr, Simone Basile, Paloma Pizarro et al.·Dec 8, 2025SaveLearn
Dynamics of the velocity fluctuations in sedimenting suspensions of rigid fibresWe use direct numerical simulations to investigate fluid-solid interactions in suspensions of rigid fibres settling under gravity in a quiescent fluid. The solid-to-fluid density ratio is…Alessandro Chiarini, Emanuele Gallorini, Marco Edoardo Rosti·Dec 8, 2025SaveLearn
Shock trapping and inertial escape: Dust-particle clustering in compressible turbulenceWe study the dynamics and clustering of dust particles with inertia in shock-dominated compressible turbulence using the two-dimensional, stochastically forced Burgers equation. At small Stokes…Anikat Kankaria, Samriddhi Sankar Ray·Dec 8, 2025SaveLearn
Surrogate-assisted airfoil optimization in rarefied gas flowsWith growing interest in space exploration, optimized airfoil design has become increasingly important. However, airfoil design in rarefied gas flows remains underexplored because solving the…Xiaoda Li, Ruifeng Yuan, Yanbing Zhang et al.·Dec 8, 2025SaveLearn
Onset of separation unsteadiness in hypersonic shock boundary layer interaction on a cone-stepShock-boundary layer interactions (SBLI) on hypersonic cone step flows exhibit a range of intrinsic unsteady behaviors, from shear-layer oscillations to large-scale pulsations. This work investigates…Chase Jenquin, Eric L. Cui, Anubhav Dwivedi et al.·Dec 8, 2025SaveLearn
The macroscopic contact angle of water on iceWettability quantifies the affinity of a liquid over a substrate, and determines whether the surface is repellent or not. When both the liquid and the solid phases are made of the same chemical…W. Sarlin, D. V. Papa, R. Grivet et al.·Dec 7, 2025SaveLearn
Inertial rotation of a small oblate spheroid in a simple shear flowWe compare experiments and fully-resolved particle simulations designed to match the experimental conditions of a weakly inertial, neutrally buoyant, moderately oblate spheroid in shear flow under…Ziqi Wang, Xander M. de Wit, Davide Di Giusto et al.·Dec 7, 2025SaveLearn
Birth of a bubble: Drop impact onto a thin liquid film for an immiscible three-fluid systemWhen a drop impacts a solid substrate or a thin liquid film, a thin gas disc is entrapped due to surface tension, the gas disc retracts into one or several bubbles. While the evolution of the gas…Pierre-Antoine Maës, Alidad Amirfazli, Christophe Josserand·Dec 7, 2025SaveLearn
Half-explicit Runge-Kutta integrators for variational multiscale turbulence modeling: Toward higher-order accuracy in space and timeThe residual-based variational multiscale (VMS) formulation has achieved remarkable success in large-eddy simulation of turbulent flows. However, its temporal discretization has largely remained…Yujie Sun, Chi Ding, Ju Liu·Dec 7, 2025SaveLearn