Large/small eddy simulations: A posteriori analysis in high Reynolds number isotropic turbulenceWhile direct numerical simulations (DNS) are the most accurate method for studying turbulence, their large computational cost restricts their use to idealized configurations and to Reynolds numbers…Chang Hsin Chen, Arnab Moitro, Alexei Y. Poludnenko·Nov 29, 2025SaveLearn
Measuring the effect of spatial dimension on hydrodynamic turbulence using direct numerical simulationWe perform direct numerical simulation of the incompressible Navier-Stokes equation with forcing at different spatial dimensions and measure turbulent and chaotic properties. Lyapunov exponents,…Richard D. J. G. Ho, Daniel Clark, Andres Armua et al.·Nov 29, 2025SaveLearn
Linearized instability of Couette flow in stress-power law fluidsThis paper examines the linearized stability of plane Couette flow for stress-power law fluids, which exhibit non-monotonic stress-strain rate behavior. The constitutive model is derived from a…Krishna Kaushik Yanamundra, Lorenzo Fusi·Nov 29, 2025SaveLearn
Bursting bubbles in Herschel-Bulkley fluids: dynamics and jetting transitionsWhen a bubble rises to a free surface, its bursting dynamics in Newtonian fluids are governed by the interplay between viscous, capillary, and gravitational forces. In this work, we extend this…A. H. Ghaemi, Z. Yang, A. Huang et al.·Nov 28, 2025SaveLearn
Chiral Particles in Taylor-Couette TurbulenceThis work investigates chiral particles, which break mirror symmetry, in turbulent Taylor--Couette flow. These particles generally display a translation-rotation coupling moving through a quiescent…Mees M. Flapper, Detlef Lohse, Sander G. Huisman·Nov 28, 2025SaveLearn
Effect of cross-sectional anisotropy on shock train dynamics in supersonic internal flowsThis study investigates the effect of duct aspect ratio (AR), defined as the ratio of major to minor axis in an elliptical duct, on shock train dynamics for a freestream Mach number of 2.1. The…Jagmohan Singh, Venkat Raman·Nov 27, 2025SaveLearn
U Net LSTM with incremental time-stepping for robust long-horizon unsteady flow predictionTransient computational fluid dynamics (CFD) remains expensive when long horizons and multi-scale turbulence are involved. Data-driven surrogates promise relief, yet many degrade over multiple steps…Blaise Madiega, Mathieu Olivier·Nov 27, 2025SaveLearn
Influence of Fluid Rheology on Fluid Flow in a Natural Fracture NetworkNon-Newtonian rheology is widely acknowledged in subsurface fluids, yet its presence and effects are largely ignored in current fracture-flow studies. Here, we simulate fracture flow of non-Newtonian…Cuong Mai Bui, Stephan K. Matthai·Nov 27, 2025SaveLearn
Learning with Physical ConstraintsThis chapter provides three tutorial exercises on physics-constrained regression. These are implemented as toy problems that seek to mimic grand challenges in (1) the super-resolution and data…Miguel A. Mendez, Jan van Den Berghe, Manuel Ratz et al.·Nov 27, 2025SaveLearn
Prediction performance of random reservoirs with different topology for nonlinear dynamical systems with different number of degrees of freedomReservoir computing (RC) is a powerful framework for predicting nonlinear dynamical systems, yet the role of reservoir topology-particularly symmetry in connectivity and weights-remains not…Shailendra K. Rathor, Lina Jaurigue, Martin Ziegler et al.·Nov 27, 2025SaveLearn
An Efficient and Accurate Surrogate Modeling of Flapping Dynamics in Inverted Elastic Foils using Hypergraph Neural NetworksCantilevered elastic foils can undergo self-induced, large-amplitude flapping when subject to fluid flow, a widely observed phenomenon of fluid-structure interaction, from fluttering leaves or the…Aarshana R. Parekh, Rui Gao, Rajeev K. Jaiman·Nov 27, 2025SaveLearn
Droplet mobilization in actuated deformable tubesWe study the mobilization of an oil droplet in a deformable, actuated constricted tube subjected to two different actuation mechanisms: hydrodynamic actuation (oscillatory body force in the fluid)…Sthavishtha R. Bhopalam, Ruben Juanes, Hector Gomez·Nov 27, 2025SaveLearn
Dynamic mixed turbulence modeling using a super-resolution generative adversarial approachA dynamic mixed super-resolution model (DMSRM) for large-eddy simulations (LESs) is proposed, which combines the traditional dynamic mixed model (DMM) formulation with the generation of…Ludovico Nista, Christoph D. K. Schumann, Temistocle Grenga et al.·Nov 26, 2025SaveLearn
CRLS: Convolutional Regularized Least Squares Framework for Reduced Order Modeling of Transonic FlowsWe develop a convolutional regularized least squares (CRLS) framework for reduced-order modeling of transonic flows with shocks. Conventional proper orthogonal decomposition (POD) based…Muhammad Bilal, Ashwin Renganathan·Nov 26, 2025SaveLearn
The effect of tip-speed ratio and free-stream turbulence on the coupled wind turbine blade/wake dynamicsWind turbines operating within wind farms experience complex aerodynamic loading arising from the interplay between wake-induced velocity deficits, enhanced turbulence, and varying operational…Francisco J. G. de Oliveira, Martin Bourhis, Zahra Sharif Khodaei et al.·Nov 26, 2025SaveLearn
First-order buoyancy correction of modal instabilities in stratified boundary layersWe present a perturbation-based framework that captures buoyancy effects on modal instabilities in stratified boundary-layer flows within the fully compressible, non-Oberbeck-Boussinesq formulation.…Pietro Carlo Boldini, Ryo Hirai, Benjamin Bugeat et al.·Nov 26, 2025SaveLearn
Hardware-Accelerated Phase-Averaging for Cavitating Bubbly FlowsWe present a comprehensive validation, performance characterization, and scalability analysis of a hardware-accelerated phase-averaged multiscale solver designed to simulate acoustically driven…Diego Vaca-Revelo, Benjamin Wilfong, Spencer H. Bryngelson et al.·Nov 26, 2025SaveLearn
Direct numerical simulation of thermo-diffusively unstable premixed hydrogen-air flames in a fully-developed turbulent channel flow at Reτ=530Direct Numerical Simulations (DNS) of premixed hydrogen-air flames anchored in a fully-developed turbulent channel flow (TCF) are performed at a friction Reynolds number of Reτ=530 and…Felix Rong, Max Schneider, Hendrik Nicolai et al.·Nov 25, 2025SaveLearn
Uncovering bistability phenomena in two-layer Couette flow experiments using nonlocal evolution equationsThis paper investigates the stability of interfacial long waves in two-layer plane Couette flow using a nonlinear, nonlocal asymptotic model derived from the Navier-Stokes equations and valid for…Xingyu Wang, Pierre Germain, Demetrios T. Papageorgiou·Nov 25, 2025SaveLearn
Fluid Intelligence: A Forward Look on AI Foundation Models in Computational Fluid DynamicsDriven by the advancement of GPUs and AI, the field of Computational Fluid Dynamics (CFD) is undergoing significant transformations. This paper bridges the gap between the machine learning and CFD…Neil Ashton, Johannes Brandstetter, Siddhartha Mishra·Nov 25, 2025SaveLearn
A meshless data-tailored approach to compute statistics from scattered data with adaptive radial basis functionsConstrained radial basis function (RBF) regression has recently emerged as a powerful meshless tool for reconstructing continuous velocity fields from scattered flow measurements, particularly in…Damien Rigutto, Manuel Ratz, Miguel A. Mendez·Nov 25, 2025SaveLearn
Morphology of mucus films in lung airways: secretion and ciliary evacuationLung airways are lined by a film of mucus which protects the epithelium from inhaled particles. To maintain a uniform coating, the mucus that is secreted into airways must be distributed into a film…Swarnaditya Hazra, Jason R. Picardo·Nov 25, 2025SaveLearn
Stood-up drop to measure receding contact anglesThe wetting behavior of drops on natural and industrial surfaces is determined by the advancing and receding contact angles. They are commonly measured by the sessile drop technique, also called…Diego Díaz, Aman Bhargava, Franziska Walz et al.·Nov 25, 2025SaveLearn
Numerical Simulation of the Cleaning Process of Microchannel by an External FlowThis paper describes the problem of drift of solid non-interacting particles in a microchannel, which can stick to its walls under the action of the van der Waals forces and break away from the wall…Boris S. Maryshev, Lyudmila S. Klimenko·Nov 25, 2025SaveLearn
Fusion of Simulation and Experiment Data for Hypersonic Flow Field Prediction via Pre-Training and Fine-TuningAccurate prediction of hypersonic flow fields over a compression ramp is critical for aerodynamic design but remains challenging due to the scarcity of experimental measurements such as velocity.…Yuan Jia, Guoqin Zhao, Hao Ma et al.·Nov 25, 2025SaveLearn