End-to-end optimization of subgrid scale models for discontinuous spectral element schemes based on the discrete adjoint methodIn computational fluid dynamics, Large Eddy Simulation (LES) offers a compelling balance between accuracy and computational cost by resolving large-scale flow structures while modeling unresolved…Nicola Clinco, Niccolò Tonicello, Paola Cinnella et al.·May 31, 2026SaveLearn
Start-up and inertialess instability of elasto-viscoplastic channel flowAn exploration is presented of the start-up and linear stability of pressure-driven channel flow of an elasto-viscoplastic fluid described by Saramito's constitutive law. Streamwise uniform base…James D. Shemilt, Neil J. Balmforth, Duncan R. Hewitt·May 31, 2026SaveLearn
Rayleigh-Plateau instability of an elasto-viscoplastic filamentA slender-thread model is used to explore the Rayleigh-Plateau instability of a filament of elasto-viscoplastic fluid. Without elasticity, a finite yield stress suppresses any linear instability for…James D. Shemilt, Neil J. Balmforth·May 31, 2026SaveLearn
Solubility enhanced surfactant-induced flow in air-liquid-air sheetsLiquid interfaces appear throughout nature and engineering and are typically contaminated by surface active agents (surfactants), which are characterized by a wide range of solubility. We demonstrate…Jun Eshima, Tristan Aurégan, Emmanuel Villermaux et al.·May 30, 2026SaveLearn
Disentangling spanwise asymmetries in unsteady wing wakes: global mode sensitivity and spatio-temporal harmonic resolvent analysesWe investigate the emergence of long-time spanwise asymmetries in an unsteady wake downstream of a finite-span wing by disentangling flow asymmetries into symmetric and anti-symmetric components…Maryam Safari, Chi-An Yeh·May 30, 2026SaveLearn
Surrogate-Based Aerodynamic Shape Optimization in Multiscale Flows via the Implicit Unified Gas-Kinetic SchemeWhile hypersonic glide vehicles such as the HTV-2 continue to be a focal point in aerospace research, their aerodynamic characteristics in complex near-space environments are not yet fully…Xiaozhe Xi, Wenpei Long, Wenzhi Guo et al.·May 30, 2026SaveLearn
Lattice Boltzmann Methods for Compressible (Magneto)hydrodynamicsThe simulation of magnetohydrodynamic (MHD) flows presents a highly complex, tightly coupled transport problem that poses severe numerical and computational demands. Towards this, we propose a novel…Fedor Bukreev, Adrian Kummerländer, Mathias J. Krause·May 30, 2026SaveLearn
Traveling waves in a continuum model of schooling swimmersThe complex formations exhibited by schooling fish have long been the object of fascination for biologists and physicists. However, the physical and sensory mechanisms leading to organized collective…Anand U. Oza, Eva Kanso, Michael J. Shelley·May 30, 2026SaveLearn
Algebraic models of plane Couette equilibriaRecent computations of weakly unstable equilibria, traveling waves, and periodic orbits in transitional shear flows suggest a spatiotemporal, dynamical-systems approach to low-Reynolds turbulence.…Pratik P. Aghor, John F. Gibson·May 29, 2026SaveLearn
Subcritical transition to turbulence in buoyancy-driven flows with multiple hysteresis loops under quasi-one-dimensional confinementWe present both static and quasi-static direct numerical simulations of Rayleigh-Bénard convection in a quasi-one-dimensional domain, revealing for the first time a clear subcritical transition to…Lu Zhang, Ke-Qing Xia·May 29, 2026SaveLearn
The effect of bubble induced turbulent structures on the mass transfer of non-spherical bubblesAlthough mass transfer from bubbles to liquid is essential for the prediction of the efficiency of reactors, the mass transfer from bubbles is not fully understood. To determine the effect of the…Veerle Dijke, Ruben Meijer, Maike Baltussen·May 29, 2026SaveLearn
amerta: A Python Library for Idealized 1D Saint--Venant Dam-Break SimulationThe Saint-Venant shallow water equations (SWE) govern depth-integrated free-surface flows arising in dam-break inundation, flood routing, tsunami runup, and estuarine tidal dynamics. Closed-form…Dasapta E. Irawan, Sandy H. S. Herho, Iwan P. Anwar et al.·May 29, 2026SaveLearn
Color-gradient lattice Boltzmann modeling of wetting boundary condition on curved solid boundariesWe introduce a wetting boundary condition for curved solid boundaries within a diffuse interface framework for lattice Boltzmann method. The boundary condition relies on updating the order parameter…Malyadeep Bhattacharya, Snigdhadyut Dash, Maneesh Sutar et al.·May 29, 2026SaveLearn
A scalable Ewald-free BIE framework for periodic Stokes flow via hierarchical proxy sumsParticulate Stokes flow in confined, periodic geometries underlies a broad class of problems in biophysics, microfluidics, and the rheology of complex fluids. Boundary integral equation (BIE) methods…Tianyue Li, Dhairya Malhotra, Shravan Veerapaneni·May 29, 2026SaveLearn
Data-efficient semi-supervised learning for flow estimation using unlabelled probe dataEstimating time-resolved velocity and pressure fields from Particle Image Velocimetry (PIV) remains challenging due to its limited temporal resolution in many applications. Data-driven approaches…Junwei Chen, Marco Raiola, Stefano Discetti·May 29, 2026SaveLearn
Modal Analysis of Buffet Effects Induced by Ultrahigh Bypass Ratio Nacelle InstallationUnsteady shock-boundary-layer interaction on the lower surface of a transport-aircraft wing can be caused or amplified by ultrahigh-bypass-ratio underwing nacelle installation. This work analyzes the…Sebastian Spinner, Andre Weiner·May 29, 2026SaveLearn
Comparison of the potential energy for different equilibrium configurations of symmetric and asymmetric floating dropsWe provide a numerical method for computing solutions to a free boundary problem arising from the equilibrium state of a floating drop. This numerical method is based on a Newton's method for the…Mason Mault, Ray Treinen·May 29, 2026SaveLearn
Tensor Network Lattice Boltzmann Method for Data-Compressed Fluid SimulationsResolving unsteady transport phenomena in geometrically complex domains is traditionally constrained by polynomial scaling of computational cost with spatial resolution. While methods based on…Lukas Gross, Elie Mounzer, David M. Wawrzyniak et al.·May 29, 2026SaveLearn
Variational quantum algorithm for anion exchange across electrolyzer membraneWe present a variational quantum algorithm that solves the one-dimensional diffusion problem with a space-dependent diffusion constant D(x). This problem is relevant for the exchange of hydroxide…Timur Gubaev, Philipp Pfeffer, Christian Dreßler et al.·May 29, 2026SaveLearn
Leveraging modal structure similarity for simulation of spatially evolving wakesWe present a new methodology to enable efficient simulation of high Reynolds number wakes. In this approach, a body-exclusive hybrid simulation at Re = 5 x 104 is initialized using inflow fields…Divyanshu Gola, Sutanu Sarkar·May 29, 2026SaveLearn
Physical Mechanism behind the Early Onset of the Ultimate State in Supergravitational Centrifugal Thermal ConvectionWe present a combined experimental and numerical investigation of the transition from the classical to the ultimate regime of thermal turbulence in a supergravitational centrifugal convection system.…Lei Ren, Jun Zhong, Rushi Lai et al.·May 29, 2026SaveLearn
Physics-informed, boundary-constrained Gaussian process regression for the reconstruction of fluid flow fieldsGaussian process regression techniques have been used in fluid mechanics for the reconstruction of flow fields from a reduction-of-dimension perspective. A main ingredient in this setting is the…Adrian Padilla-Segarra, Pascal Noble, Olivier Roustant et al.·May 29, 2026SaveLearn
Effect of Acoustics on Droplet Grouping Behaviour in a Single Stream of DropletsDroplet and particle grouping can be influenced by applying an acoustic field and have practical applications such as particle scavenging and aerosol filters of engine exhaust and air purifiers. The…M. Kumar, V. Vaikuntanathan, M. Ibach et al.·May 28, 2026SaveLearn
Neural-Network-based Viscosity Closure for Non-Newtonian Multiphase FlowsMaterials used in polymer-based additive manufacturing processes, such as Digital Light Processing (DLP) and direct ink writing (DIW), typically exhibit non-Newtonian rheology. Carreau--Yasuda and…Suresh Murugaiyan, Claire L. Nelson, Dhruv Gamdha et al.·May 28, 2026SaveLearn
The Role of Interfacial Tension in Direct Numerical Simulations of Drop-Film Interaction for Immiscible FluidsMany experimental studies have reported variations in interfacial tension. Isolating all the geometric and fluid material parameters and varying the interfacial tension can be useful to check their…Rishi Dhar, David Gösele, Paul Saumet et al.·May 28, 2026SaveLearn