Morphological Regimes of Rotating Moist ConvectionMoist convection is a physical process where the latent heat released by condensation acts as a buoyancy source that can enhance or even trigger an overturning convective instability. Since the…Whitney T. Powers, Adrian E. Fraser, Evan H. Anders et al.·May 2, 2025SaveLearn
Stratified wakes of a prolate spheroid at moderate angle of attackOcean submersibles and aerial vehicles often encounter a density-stratified environment whose effect on flow features is of interest. A 6:1 prolate spheroid of diameter D with velocity U and at a…Sheel Nidhan, Sanidhya Jain, Jose L. Ortiz-Tarin et al.·May 2, 2025SaveLearn
An Adaptive Framework for Autoregressive Forecasting in CFD Using Hybrid Modal Decomposition and Deep LearningThis work presents, to the best of the authors' knowledge, the first generalizable and fully data-driven adaptive framework designed to stabilize deep learning (DL) autoregressive forecasting models…Rodrigo Abadía-Heredia, Manuel Lopez-Martin, Soledad Le Clainche·May 2, 2025SaveLearn
Carbon fiber damage evolution under flame attack and the role of impuritiesCarbon fibers (CFs) are prone to extensive oxidation under fire attack, for instance, in an aircraft fire scenario. This work addresses the damage mechanisms observed on polyacrylonitrile (PAN)-based…Pablo Chavez-Gomez, Tanja Pelzmann, Darren R. Hall et al.·May 2, 2025SaveLearn
Experiments in a novel quasi-1D diffusion flame with variable bulk flowThe novel species injector of a recently developed research burner, consisting of an array of hypodermic needles, which allows to produce quasi one-dimensional unstrained diffusion flames has been…Etienne Robert, Peter A. Monkewitz·May 2, 2025SaveLearn
Machine learning-based prediction of species mass fraction and flame characteristics in partially premixed turbulent jet flameThis study explores the integration of machine learning (ML) techniques with large eddy simulation (LES) for predicting species mass fraction and flame characteristics in partially premixed turbulent…Amirali Shateri, Zhiyin Yang, Jianfei Xie·May 2, 2025SaveLearn
Robustness and uncertainty of direct numerical simulation under the influence of rounding and noiseNumerical precision in large-scale scientific computations has become an emerging topic due to recent developments in computer hardware. Lower floating point precision offers the potential for…Martin Karp, Niclas Jansson, Saleh Rezaeiravesh et al.·May 2, 2025SaveLearn
accLB: A High-Performance Lattice Boltzmann Code for Multiphase Turbulence on Multi-Gpu ArchitecturesIn this work, we present accLB, a high-performance Fortran-based lattice Boltzmann (LB) solver tailored to multiphase turbulent flows on multi-GPU architectures. The code couples a conservative…Marco Lauricella, Aritra Mukherjee, Luca Brandt et al.·May 2, 2025SaveLearn
Drop rebound at low Weber numberWe study the rebound of drops impacting non-wetting substrates at low Weber number We through experiment, direct numerical simulation, and reduced-order modeling. Submillimeter-sized drops are…Chase T. Gabbard, Elvis A. Aguero, Radu Cimpeanu et al.·May 1, 2025SaveLearn
A continuum thermodynamic model of the influence of non-ionic surfactant on mass transfer from gas bubblesMass transfer of gaseous components from rising bubbles to the ambient liquid depends not only on the chemical potential difference of the transfer component but also on the interfacial free energy…Dieter Bothe, Akio Tomiyama·May 1, 2025SaveLearn
Discovery of a Physically Interpretable Data-Driven Wind-Turbine Wake ModelThis study presents a compact data-driven Reynolds-averaged Navier-Stokes (RANS) model for wind turbine wake prediction, built as an enhancement of the standard \(k\)-\(\) formulation.…Kherlen Jigjid, Ali Eidi, Nguyen Anh Khoa Doan et al.·May 1, 2025SaveLearn
Compressing fluid flows with nonlinear machine learning: mode decomposition, latent modeling, and flow controlAn autoencoder is a self-supervised machine-learning network trained to output a quantity identical to the input. Owing to its structure possessing a bottleneck with a lower dimension, an autoencoder…Koji Fukagata, Kai Fukami·May 1, 2025SaveLearn
High-Fidelity Fluid-Structure Interaction Simulations of Perforated Elastic Vortex GeneratorsThis study conducts a high-fidelity two-way coupled fluid-structure interaction simulations, focusing on a novel perforated elastic vortex generator that is wall-mounted in an open channel with an…Karan Kakroo, Hamid Sadat·Apr 30, 2025SaveLearn
A sensor-restrained artificial shear diffusivity for large-eddy simulations of vortex-dominated compressible flowsWe propose a sensor-restrained model for the shear viscosity term within the localized artificial diffusivity (LAD) scheme to stabilize compressible large-eddy simulations with low-pressure-core…Jean Hélder Marques Ribeiro, Hugo Felippe da Silva Lui, William Roberto Wolf·Apr 30, 2025SaveLearn
Emergent oscillations and chaos in non-compliant microfluidic networksIncompressible fluids in microfluidic networks with non-rigid channels can exhibit flow rate oscillations analogous to electric current oscillations in RLC circuits. This is due to the elastic…Yanxuan Shao, Jean-Regis Angilella, Adilson Motter·Apr 30, 2025SaveLearn
The U2H map explains the effect of (sub)mesoscale currents on significant wave height statisticsCurrents modulate the energy of surface gravity waves, leading to spatial inhomogeneities in significant wave height (SWH). Previous work indicates that the overall scale of the inhomogeneities is…Han Wang, Ana B. Villas Bôas, Jacques Vanneste et al.·Apr 30, 2025SaveLearn
Internal solitary and cnoidal waves of moderate amplitude in a two-layer fluid: the extended KdV equation approximationWe consider travelling internal waves in a two-layer fluid with linear shear currents from the viewpoint of the extended Korteweg-de Vries (eKdV) equation derived from a strongly-nonlinear long-wave…Nerijus Sidorovas, Dmitri Tseluiko, Wooyoung Choi et al.·Apr 30, 2025SaveLearn
Area rule of velocity circulation in two-dimensional instability-driven turbulence beyond the inertial rangeThe velocity statistics reveal non-universality in both three-dimensional (3-D) and two-dimensional (2-D) turbulence, despite both prototype systems containing an energy inertial range with constant…Bo-Jie Xie, Tian-Shu Zhou, Jin-Han Xie·Apr 30, 2025SaveLearn
Kolmogorov Cascade as the Governing Mechanism for Intervortex Spacing in Quantum TurbulenceIn this paper, we investigate inertially forced isothermal quantum turbulence (coflow of normal and superfluid components) at temperatures of 1.6 and 2 K. The experiments are carried out in a large…Clément Bret, Pantxo Diribarne, Jérôme Duplat et al.·Apr 30, 2025SaveLearn
Dynamical stability and flow regimes in a stably stratified valley-shaped cavity heated from belowWe investigate the three-dimensional stability of a stably stratified fluid in a valley-shaped cavity heated from below using linear stability analysis and direct numerical simulations. We first…Patrick J. Stofanak, Cheng-Nian Xiao, Inanc Senocak·Apr 29, 2025SaveLearn
Non-Equilibrium Phase Changes in Aircraft Exhaust: A Computational Study on Early Contrail FormationA numerical framework is developed to model contrail formation in the near-field exhaust of aircraft engines, resolving non-equilibrium phase transitions in compressible, multi-component, non-ideal…Katharina Tegethoff, Andrew P. S. Wheeler·Apr 29, 2025SaveLearn
Reinforcement-learning-assisted control of four-roll mills: geometric symmetry and inertial effectEmbedding the intrinsic symmetry of a flow system in training its machine learning algorithms has become a significant trend in the recent surge of their application in fluid mechanics. This paper…Xuan Dai, Da Xu, Mengqi Zhang et al.·Apr 29, 2025SaveLearn
Brain pulsations enhance cerebrospinal fluid flow in perivascular spacesA novel approach is adopted to model cerebrospinal fluid (CSF) flow in human perivascular spaces (PVSs) surrounding brain-penetrating arteries. It is proposed that the outer PVS boundary oscillates…Gregory Holba, James P. Hague, Nigel Hoggard et al.·Apr 28, 2025SaveLearn
PQG-DL-Ekman: a triple-deck boundary layer theory for large-scale atmospheric flow with moist process closuresReduced mathematical models for atmospheric dynamics at various scales have a long and rich history. However, versions of such models that explicitly incorporate moisture and phase changes have been…Daniel Bäumer, Rupert Klein·Apr 28, 2025SaveLearn
Perfectly Matched Layers and Characteristic Boundaries in Lattice Boltzmann: Accuracy vs CostArtificial boundary conditions (BCs) play a ubiquitous role in numerical simulations of transport phenomena in several diverse fields, such as fluid dynamics, electromagnetism, acoustics, geophysics,…Friedemann Klass, Alessandro Gabbana, Andreas Bartel·Apr 28, 2025SaveLearn