Verifiability and Limit Consistency of Eddy Viscosity Large Eddy Simulation Reduced Order ModelsLarge eddy simulation reduced order models (LES-ROMs) are ROMs that leverage LES ideas (e.g., filtering and closure modeling) to construct accurate and efficient ROMs for convection-dominated (e.g.,…Jorge Reyes, Ping-Hsuan Tsai, Ian Moore et al.·May 23, 2025SaveLearn
TripNet: Learning Large-scale High-fidelity 3D Car Aerodynamics with Triplane NetworksSurrogate modeling has emerged as a powerful tool to accelerate Computational Fluid Dynamics (CFD) simulations. Existing 3D geometric learning models based on point clouds, voxels, meshes, or graphs…Qian Chen, Mohamed Elrefaie, Angela Dai et al.·May 23, 2025SaveLearn
A GPU-Accelerated Sharp Interface Immersed Boundary Solver for Large Scale Flow SimulationsImmersed boundary methods (IBMs) facilitate the simulation of flows around stationary, moving, and deforming bodies on Cartesian grids. However, extending these simulations to the large grid sizes…Sushrut Kumar, Joshua Romero, Jung-Hee Seo et al.·May 22, 2025SaveLearn
Bayesian and non-Bayesian multi-fidelity surrogate models for multi-objective aerodynamic optimization under extreme cost imbalanceAerodynamic shape optimization in industry still faces challenges related to robustness and scalability. This aspect becomes crucial for advanced optimizations that rely on expensive high-fidelity…Marc Schouler, Anca Belme, Paola Cinnella·May 22, 2025SaveLearn
Attached Decelerating Turbulent Boundary Layers over RibletsTurbulent boundary layers over riblets subjected to adverse pressure gradients (APGs) are investigated by direct numerical simulation. Multiple APG strengths and riblet sizes are examined, permitting…Benjamin S. Savino, Amirreza Rouhi, Wen Wu·May 22, 2025SaveLearn
Dynamic pressure enhancement upon disk impact on a boiling liquidWe experimentally investigate the impact of a flat, horizontal disk onto a boiling liquid, i.e., a liquid in thermal equilibrium with its vapor phase. We observe exceptionally high impact pressures…Yee Li, Fan, Bernardo Palacios Muniz et al.·May 22, 2025SaveLearn
Electric field effects on the collision efficiency of uncharged water droplets in a linear flowWe study the dynamics of collisions between a pair of uncharged conducting droplets under the influence of a uniaxial compressional flow and an external electric field. The near-field asymptotic…Pijush Patra, Anubhab Roy, J. S. Wettlaufer·May 21, 2025SaveLearn
Effects of symmetry and hydrodynamics on the cohesion of groups of swimmersWhen groups of inertial swimmers move together, hydrodynamic interactions play a key role in shaping their collective dynamics, including the cohesion of the group. To explore how these interactions…Mohamed Niged Mabrouk, Daniel Floryan·May 21, 2025SaveLearn
Propulsion of a flexible foil in a wavy flow: resonance, antiresonance, and destructive self-interferenceSwimming and flying animals demonstrate remarkable adaptations to diverse flow conditions in their environments. In this study, we aim to advance the fundamental understanding of the interaction…Abdur Rehman, Daniel Floryan·May 21, 2025SaveLearn
SENSE -- Sensor-Enhanced Neural Shear Stress Estimation for Quantitative Oilfilm VisualizationsWall shear stress quantification is fundamental in fluid dynamics but remains challenging in wind-tunnel experiments. Sensor-based methods offer high accuracy but lack spatial resolution for…Lennart Rohlfs, Julien Weiss·May 21, 2025SaveLearn
Thermodynamically Admissible Diffuse Interface Model for Nanoscale Transport of Dense FluidsWe investigate interfacial fluid dynamics and heat transfer at nanoscales using an improved diffuse interface approach for liquid-vapor interfaces in non-equilibrium. Conventional…Rahul Bhattacharjee, Henning Struchtrup, Anirudh Singh Rana·May 21, 2025SaveLearn
Laminar boundary layer separation over a fully porous bumpThis study investigates laminar boundary layer separation over a fully porous Gaussian bump using pore-resolved direct numerical simulations. The bump is formed by randomly packed spheres. Compared…Grace Bridge, Wen Wu·May 21, 2025SaveLearn
Scale-by-scale kinetic energy flux calculations in simulations of rotating convectionTurbulence is an out-of-equilibrium flow state that is characterised by nonzero net fluxes of kinetic energy between different scales of the flow. These fluxes play a crucial role in the formation of…Youri H. Lemm, Xander M. de Wit, Rudie P. J. Kunnen·May 21, 2025SaveLearn
Dynamics of intracycle angular velocity control applied to cross-flow turbinesUnderstanding the intricate dynamics of cross-flow turbines (CFT) is critical to the improvement of performance and optimal control strategies. The current study numerically investigates intracycle…Sara F. Hartke, Ari Athair, Owen Williams et al.·May 20, 2025SaveLearn
Geometric and kinematic indicators of breaking inception in surface gravity wavesThe process of breaking in surface gravity waves can be characterized by two distinct stages. Breaking onset, defined as the first visible surface manifestation of breaking, is preceded by breaking…Daniel G. Boettger, Shane R. Keating, Michael L. Banner et al.·May 20, 2025SaveLearn
A marching cubes based method for topology changes in three-dimensional two-phase flows with front trackingThe handling of topology changes in two-phase flows, such as breakup or coalescence of interfaces, with front tracking is a well-known problem that requires an additional effort to perform explicit…Gabriele Gennari, Christian Gorges, Fabian Denner et al.·May 20, 2025SaveLearn
Influence of ambient temperature on cavitation bubble dynamicsWe investigate the influence of ambient temperature on the dynamics of spark-generated cavitation bubbles over a broad temperature range of 23 to 90 C. Increasing temperature, the…Shaocong Pei, A-Man Zhang, Chang Liu et al.·May 20, 2025SaveLearn
Unidirectional zero-index and omnidirectional hybrid hydrodynamic cloaks constructed from isotropic media with anisotropic geometryHydrodynamic cloaking offers a promising approach for manipulating viscous flows by redirecting fluid around an obstacle without inducing external disturbances. By extending pseudo-conformal mappings…Gaole Dai, Yuhong Zhou, Jun Wang et al.·May 20, 2025SaveLearn
Ionic strength-driven cavitation nucleation: from energy deposition-based to tension-based cavitationIn this work, we present a unified experimental and simulation investigation of cavitation in aqueous electrolyte solutions, combining nanosecond laser-induced optical breakdown and all-atom…Junhao Cai, Yuhan Li, Yunqiao Liu et al.·May 19, 2025SaveLearn
Semi-analytical solutions of passive scalar transport in generalized Newtonian fluid flowTransport during flow of generalized Newtonian fluids (GNFs) appears often in systems that can be treated in a simplified form as either cylindrical tubes or slit openings between parallel plates.…Christopher A. Bowers, Cass T. Miller·May 19, 2025SaveLearn
A conformally mapped numerical wave tank supporting piston and flap wavemakersThis paper advances the development of the conformally mapped model for accurate simulation of two-dimensional water waves, here with emphasis on mapping boundaries that represent piston- and…Andreas Holm Akselsen·May 19, 2025SaveLearn
Flow interactions and forward flight dynamics of tandem flapping wingsWe examine theoretically the flow interactions and forward flight dynamics of tandem or in-line flapping wings. Two wings are driven vertically with prescribed heaving-and-plunging motions, and the…Fang Fang, Christiana Mavroyiakoumou, Leif Ristroph et al.·May 19, 2025SaveLearn
Revisiting the Slip Boundary Condition: Surface Roughness as a Hidden Tuning ParameterIn this paper, we investigate the effect of boundary surface roughness on numerical simulations of incompressible fluid flow past a cylinder in two and three spatial dimensions furnished with slip…Matthias Maier, Peter Munch, Murtazo Nazarov·May 19, 2025SaveLearn
Self-consistent model for active control of wind turbine wakesActive wake control (AWC) has emerged as a promising strategy for enhancing wind turbine wake recovery, but accurately modelling its underlying fluid mechanisms remains challenging. This study…Zhaobin Li, Xiaolei Yang·May 19, 2025SaveLearn
Transitional and Near-Wall Turbulence Dynamics over Rib-Roughened SurfacesThis study utilizes Large Eddy Simulation (LES) to investigate the impact of longitudinal triangular riblets on the laminar-to-turbulent transition in boundary layer flow. Five cases are examined:…Ranjan Kushwaha, S. Sarkar, Gautam Biswas·May 19, 2025SaveLearn