The underwater BrachistochroneThe brachistochrone, the curve of fastest descent under gravity, is a cycloid when friction is absent. Underwater, however, buoyancy, viscous drag, and the added mass of entrained fluid fundamentally…Mohammad-Reza Alam·Feb 16, 2026SaveLearn
Adjoint-based shape optimization of a ship hull using a Conditional Variational Autoencoder (CVAE) assisted propulsion surrogate modelAdjoint-based shape optimization of ship hulls is a powerful tool for addressing high-dimensional design problems in naval architecture, particularly in minimizing the ship resistance. However, its…Moloud Arian Maram, Georgios Bletsos, Thanh Tung Nguyen et al.·Feb 16, 2026SaveLearn
Fluidic Shaping over arbitrary domains: theory and high order finite-elements solverFluidic Shaping is a novel method for fabrication of optical components based on the equilibrium state of liquid volumes in neutral buoyancy, subjected to geometrical constraints. The underlying…Amos A. Hari, Moran Bercovici·Feb 16, 2026SaveLearn
Recursive regularised lattice Boltzmann method for magnetohydrodynamicsWe present and test a recursive regularised lattice Boltzmann method for incompressible magnetohydrodynamic (MHD) flows. The approach is based on a double-distribution formulation, in which the…Alessandro De Rosis·Feb 16, 2026SaveLearn
On the turbulent wake of the actuated fluidic pinball: dynamics, bifurcations and control authorityWe present the first comprehensive experimental and numerical study featuring the turbulent wake of the fluidic pinball for a large actuation range. The fluidic pinball is a cluster of three equal…Alicia Rodríguez-Asensio, Luigi Marra, Ignacio Andreu-Angulo et al.·Feb 16, 2026SaveLearn
Wavemaker and endogeneity of gravitationally stretched weakly viscoelastic jetsHighly stretched capillary jets produced by gravity are central to drop generation, micro-thread formation, and extensional-rheometry concepts. For Newtonian fluids, the transition from steady…Daniel Moreno-Boza·Feb 16, 2026SaveLearn
Droplet impact on surfactant-laden thin liquid films: Vortex ring dynamicsDroplet impact on surfactant-laden thin liquid films is investigated experimentally with emphasis on vortex ring dynamics. Bottom- and side-view imaging reveal that increasing surfactant…Hatim Ennayar, Hyoungsoo Kim, Jeanette Hussong·Feb 15, 2026SaveLearn
Preconditioned Adjoint Data Assimilation for Two-Dimensional Decaying and Forced TurbulenceAdjoint-based data assimilation for turbulent Navier-Stokes flows is limited by backward adjoint growth and increasing dominance of small-scale structures, which degrade reconstruction of initial…Hongyi Ke, Zejian You, Qi Wang·Feb 15, 2026SaveLearn
Causally coherent structures in turbulent dynamical systemsThe extraction of spatio-temporal coherence in high-dimensional, chaotic, non-linear dynamical systems, such as turbulent flows, remains a fundamental challenge in physics, mathematics and…Daniele Massaro, Saleh Rezaeiravesh, Philipp Schlatter·Feb 14, 2026SaveLearn
Higher-order mean velocity profile in the convective atmospheric boundary layerThe higher-order mean velocity profile in the convective atmospheric boundary layer (CBL) is derived using the method of matched asymptotic expansions. The universal expansion coefficients are…Chenning Tong, Davoud Pourabdollah, Kirill Barskov et al.·Feb 13, 2026SaveLearn
The Unsteady Taylor--Vortex Dynamo is FastAstrophysical and geophysical fluids commonly generate organized magnetic fields, despite having enormous magnetic Reynolds numbers Rm and abundant small-scale turbulence. Flow-induced dynamo…Liam O'Connor, Daniel Lecoanet, Geoffrey M. Vasil et al.·Feb 13, 2026SaveLearn
On multiple stable states in Taylor-Couette flow with realistic end-wall boundary conditionsWe investigate Taylor-Couette flow with realistic no-slip boundary conditions at all surfaces through direct numerical simulations (DNS) and theoretical analysis. Imposing physically consistent…Marvin Kriening, Zhongzhi Yao, Mohammad S. Emran et al.·Feb 13, 2026SaveLearn
On the rheoscopic measurement of turbulent decay in wall-bounded flowsQuench experiments where the flow passes from a fully turbulent state to a laminar state by an abrupt decrease in the flow Reynolds number (Re) have been extensively studied in the literature to…Tao Liu, Victoria Nicolazo-Crach, Ramiro Godoy-Diana et al.·Feb 13, 2026SaveLearn
Stokes flows in a sessile hemispherical drop due to evaporation and surface tension gradientViscous hydrodynamic flow in a small, slowly evaporating, sessile hemispherical droplet with a pinned contact line is considered. Analytical solutions are obtained for the Deegan outward flow, which…Peter Lebedev-Stepanov·Feb 13, 2026SaveLearn
Covariant Chu-Kovasznay Decomposition: Resolving Thermodynamic Ambiguity in Compressible FlowsWe establish the Covariant Chu--Kovasznay Decomposition (CCKD), a geometric framework that resolves thermodynamic ambiguity in compressible mode content by formulating the decomposition on the…Chanho Park, Gyeongho Gong, Yeachan Kwak et al.·Feb 12, 2026SaveLearn
The microscopic origin of droplet line tensionThe size dependence of the equilibrium droplet contact angle is governed by line tension. In this work, we identify a contribution to line tension arising from gravitational effects and…Franziska Aurbach, Fei Wang, Britta Nestler·Feb 12, 2026SaveLearn
A Preliminary Assessment of Coding Agents for CFD WorkflowsWe investigate the use of tool-using coding agents to automate end-to-end workflows in the open-source CFD package OpenFOAM. Building on general-purpose coding agent interfaces, we introduce a…Ke Xiao, Haoze Zhang, Yangchen Xu et al.·Feb 12, 2026SaveLearn
On Capturing Laminar/Turbulent Regions Over a Wing Using WMLESWall-modeled large-eddy simulation (WMLES) is performed for flow over a wing with a focus on documenting grid resolution requirements to predict both the laminar and turbulent regions accurately.…P. Balakumar, Prahladh S. Iyer·Feb 11, 2026SaveLearn
The search for the gust-wing interaction "textbook"We address whether complex physical relations can be investigated through the synergy of automated high-volume experiments and the reduction of large datasets to a concise, representative subset of…Paolo Olivucci, David E. Rival·Feb 11, 2026SaveLearn
Effect of Reynolds number on triboelectric particle charging in turbulent channel flowTriboelectric charging in particle-laden flows is a complex interplay of fluid and particle dynamics, collision mechanics, and electrostatics. In this study, we introduce triboFoam, an open-source…Christoph Wilms, Holger Grosshans·Feb 11, 2026SaveLearn
Accurate simulation of pulled and pushed fronts in the nonautonomous Fisher-KPP equationWe introduce a novel numerical method for direct simulation of front propagation in the Fisher-KPP equation with a time-dependent parameter on an infinite domain. The method computes a time-dependent…Troy Tsubota, Smridhi Mahajan, Adrian van Kan et al.·Feb 11, 2026SaveLearn
Transonic Buffet Modeling via Invariant ManifoldsIn transonic flow over aircraft wings, shock-boundary-layer interactions can give rise to transonic buffet, which degrades maneuverability through unsteady aerodynamic loads. Beyond its practical…Tea Vojković, David Quero, Rahul Jayaraj et al.·Feb 10, 2026SaveLearn
Towards a full-scale version of Yakhot's model of strong turbulenceWe present first elements of an extension of Yakhot's model of strong turbulence towards small scales. The analysis is based on an empirically observed relation for even order structure functions…Christoph Renner·Feb 10, 2026SaveLearn
Comparing surface and deep horizontal distributions of depth-keeping particles in shallow fluid layersThis study examines whether the dispersion of passive particles at the free surface of a generic (nonturbulent) shallow flow can reliably represent the behavior of depth-keeping particles below the…Lenin M. Flores Ramírez, Matias Duran-Matute, Herman J. H. Clercx·Feb 10, 2026SaveLearn
Linear Stability and Structural Sensitivity of a Swirling Jet in a Francis Turbine Draft TubeMotivated by the need to better understand flow unsteadiness in hydraulic turbines, we perform a local linear stability and adjoint-based sensitivity analysis of the turbulent swirling jet at the…Lester Corpin Toledo, Artur Gesla, Eunok Yim·Feb 10, 2026SaveLearn