Nonlinear dynamics of water waves over nonuniformly periodic bottomBy numerical simulation of exact equations of motion (in terms of conformal variables) for planar non-stationary potential flows of an ideal fluid with a free surface over a strongly non-uniform…Victor P. Ruban·Aug 19, 2025SaveLearn
Machine learning in fluid dynamics: A critical assessmentThe fluid dynamics community has increasingly adopted machine learning to analyze, model, predict, and control a wide range of flows. These methods offer powerful computational capabilities for…Kunihiko Taira, Georgios Rigas, Kai Fukami·Aug 19, 2025SaveLearn
Dynamic stall of a hydrofoil with tubercles in surface gravity wavesThe interaction of an object with an unsteady flow is non-trivial and is still far from being fully understood. When an airfoil or hydrofoil, for example, undergoes time-dependent motion, nonlinear…Guillaume Ricard, Gunnar Jacobi, Daniele Fiscaletti et al.·Aug 18, 2025SaveLearn
Modeling wind farm noise emission and propagation: effects of flow and layoutThis study demonstrates how wind farm flow physics influence noise generation and downstream propagation through numerical simulations. The flow field is modeled using large-eddy simulations (LES),…J. Colas, A. Emmanuelli, D. Dragna et al.·Aug 18, 2025SaveLearn
Influence of Aspect Ratio and Flow Compressibility on Flow Dynamics in a Confined CavityCavities possess self-sustaining oscillations driven by the interaction of hydrodynamic and acoustic characteristics. These oscillations have applications in fuel-air mixing, heat exchangers, and…Sreejita Bhaduri, Mohammed Ibrahim Sugarno, Ashoke De·Aug 18, 2025SaveLearn
A Comparison of Instabilities and Dynamic States in Active Filament ModelsActive filaments, such as microtubules with attached cargo-carrying motor proteins, are important dynamic structures for fluid transport in and around living cells. The mathematical models of active…Ilteber R. Ozdemir, Bethany Clarke, Yongyun Hwang et al.·Aug 18, 2025SaveLearn
TURB-Scalar. A large database of passive scalar fields advected by 2D Navier-Stokes in the turbulent inverse cascade regimeWe introduce TURB-Scalar, an open-access database comprising approximately 400 uncorrelated snapshots of two-dimensional turbulent velocity and passive scalar fields, obtained from the turbulent…Chiara Calascibetta, Luca Biferale, Fabio Bonaccorso et al.·Aug 18, 2025SaveLearn
Improved Analytical Solution for Turbulent Flow in Channel and Circular PipeThe approximate analytical solution for turbulent flow in a channel was proposed in Fedoseyev (2023). It described the mean turbulent flow velocity as a superposition of parabolic (laminar) and…Alex Fedoseyev·Aug 18, 2025SaveLearn
SQG Point Vortex Dynamics with Order Rossby CorrectionsQuasi-geostrophic flow is an asymptotic theory for flows in rotating systems that are in geostrophic balance to leading order. It is characterized by the conservation of (quasi-geostrophic) potential…Mac Lee, Stefan Llewellyn Smith·Aug 18, 2025SaveLearn
Pulsatile Annular Flow with Coaxial Fluid JetThis study provides exact analytical solutions for both steady-state and pulsatile annular flows in coaxial cylindrical systems. It also examines the effects of a synchronized inner tube high…Jean-Luc Boulnois·Aug 18, 2025SaveLearn
Compressibility correction to the k-ω turbulence model that considers the wall-cooling effectIn supersonic and hypersonic flows, the near-wall density variation due to wall cooling poses a challenge for accurately predicting the near-wall velocity and temperature profiles using classical…Zifei Yin·Aug 18, 2025SaveLearn
A semi-analytical approach to characterize high-frequency three-dimensional wave propagation through clamp-on flowmetersWave propagation analysis at high frequencies is essential for applications involving ultrasound waves, such as clamp-on ultrasonic flowmeters. However, it is extremely challenging to perform a 3D…Sabiju Valiya Valappil, Alejandro M. Aragon, Johannes F. L. Goosen·Aug 17, 2025SaveLearn
Axially strained flow in a porous duct of circular-sector cross-sectionA canonical problem of axially strained flow in a duct of circular-sector cross-section, with fluid injection through the circular arc, is examined for a range of Reynolds numbers and sector angles.…Prabakaran Rajamanickam·Aug 16, 2025SaveLearn
Large Wing ModelDeveloping a generalized aerodynamics prediction machine learning model for finite wings with different airfoil sections is challenging due to the vast parameter space and a relative scarcity of…Howon Lee, Pranay Seshadri, Juergen Rauleder·Aug 15, 2025SaveLearn
Coherent Structure Dynamics of Heat Transfer in Wakes of an Inclined Elliptical Cylinder: A Novel Lagrangian FrameworkThis work introduces a novel Lagrangian-based framework to analyze forced convective heat transfer in the unsteady wake of a heated elliptical cylinder inclined at angles ranging from $θ =…Pratham Singh, Raghav Singhal, Jiten C. Kalita·Aug 15, 2025SaveLearn
Bistable flow dynamics of airfoil stall under varying angle of attack: A stochastic model with multiplicative noiseWe focus on the intermittent bistable stall dynamics of an airfoil under varying angle of attack. We propose a one-dimensional Langevin equation where the stochastic forcing depends on the state of…Edouard Boujo, Ivan Kharsansky Atallah, Luc R. Pastur·Aug 15, 2025SaveLearn
The Effect of Flow Parameters and Wall Models on Gas-Surface Interactions: A Numerical Investigation of dsmcFoamAtmosphere-breathing electric propulsion systems harness atmospheric particles as propellant, enabling efficient operation across diverse environmental conditions. To accurately simulate the captured…M. B. Agir, N. H. Crisp, K. L. Smith et al.·Aug 15, 2025SaveLearn
Stochastic Modeling of Filtration with Sieving in Graded Pore NetworksWe model filtration of a feed solution, containing both small and large foulant particles, by a membrane filter. The membrane interior is modeled as a network of pores, allowing for the simultaneous…Binan Gu, Pejman Sanaei, Lou Kondic et al.·Aug 15, 2025SaveLearn
Relative accuracy of turbulence simulations using pseudo-spectral and finite difference solversFor a single timestep, a spectral solver is known to be more accurate than its finite-difference counterpart. However, as we show in this paper, turbulence simulations using the two methods have…Akash Rodhiya, Shashwat Bhattacharya, Mahendra K Verma·Aug 14, 2025SaveLearn
Transition to the ultimate regime of turbulent convection in stratified inclined duct flowThe stratified inclined duct (SID) flow provides a canonical model for sustained, buoyancy-driven exchange between two reservoirs of different density, and emerges as a new paradigm in geophysical…Rundong Zhou, Adrien Lefauve, Roberto Verzicco et al.·Aug 14, 2025SaveLearn
Compressible boundary layers over isotropic porous surfacesA compressible laminar boundary layer developing over an isotropic porous substrate is investigated by asymptotic and numerical methods. The substrate is modeled as an array of cubes. The momentum…Ludovico Fossà, Pierre Ricco·Aug 14, 2025SaveLearn
Robust Spectral Solver for High-Fidelity Investigations of Aerospike Nozzle Flow DynamicsA spectral element solver is developed for the high-fidelity simulation of the unsteady flow over an aerospike nozzle. The Navier-Stokes solver is a kinetic-energy-preserving, discontinuous Galerkin…Zachary Pyle, Gustaaf B. Jacobs·Aug 14, 2025SaveLearn
Diffusive Braking of Penetrative Convection in Stably-Stratified FluidsMixing at the interface between a convection zone and an adjacent, stably-stratified layer plays a crucial role in shaping the structure and evolution of stars and planets. In this work, we present a…Bradley W. Hindman, J. R. Fuentes·Aug 13, 2025SaveLearn
Numerical Simulation of Turbulent Concentric Annular Pipe Flow using One-Dimensional Turbulence (ODT): Part 1: Momentum TransferTurbulent concentric coaxial (annular) pipe flow is numerically investigated using a stochastic one-dimensional turbulence (ODT) model as a stand-alone tool. The dimensionally reduced ODT domain…Pei-Yun Tsai, Marten Klein, Heiko Schmidt·Aug 13, 2025SaveLearn
Anomalous Transport of Elongated Particles in Oscillatory Vortical FlowsWe investigate the transport dynamics of elongated particles in cellular vortical flows that undergo spatial oscillations over time. Experimental flow visualizations reveal mixed flow fields with…Shiyuan Hu, Xiuyuan Yang, Nan Luo et al.·Aug 13, 2025SaveLearn