Immersed boundary - lattice Boltzmann method for wetting problemsWe develop a mesoscale computational model to describe the interaction of a droplet with a solid. The model is based on the hybrid combination of the immersed boundary and the lattice Boltzmann…Elisa Bellantoni, Fabio Guglietta, Francesca Pelusi et al.·Mar 26, 2025SaveLearn
Load-dependent resistive-force theory for helical filamentsThe passive rotation of rigid helical filaments is the propulsion strategy used by flagellated bacteria and some artificial microswimmers to navigate at low Reynolds numbers. In a classical 1976…Pyae Hein Htet, Eric Lauga·Mar 26, 2025SaveLearn
Rotationally-affected Internally Heated ConvectionWe study convection in a volumetrically heated fluid which is cooled from both plates and is under rotation through the use of direct numerical simulations. The onset of convection matches similar…Rodolfo Ostilla-Mónico, Ali Arslan·Mar 26, 2025SaveLearn
Phase-resolved modelling of wave transformation in the surf zone over idealised rough bottomsIn order to understand and predict coastal flooding processes in rocky environments, it is necessary to take into account bottom roughness, which plays a key role in wave transformation processes and…Emile Guélard-Ancilotti, Damien Sous, Denis Morichon et al.·Mar 26, 2025SaveLearn
Phase-resolved Modeling Of Surf Zone Wave Transformation Over Idealized Rough BottomsRough rocky seabeds dominate world's coastlines, making accurate modeling of wave transformation in such environments essential for understanding coastal processes and hazards. Wave breaking and…Emile Guélard-Ancilotti, Damien Sous, Denis Morichon et al.·Mar 26, 2025SaveLearn
Droplet-on-demand using a positive pressure pulseDroplet generation under steady conditions is a common microfluidic method for producing biphasic systems. However, this process works only over a limited range of imposed pressure: beyond a critical…Mathieu Oléron, Gregoire Clement, Samuel Hidalgo Caballero et al.·Mar 26, 2025SaveLearn
Energy transfer and budget analysis for transient process with phase-averaged reduced-order modelWe derive a phase-averaged representation of transient flows based on the eigenmodes of a data-driven linear operator that approximates the Navier-Stokes dynamics. In performing phase averaging, it…Yuto Nakamura, Yuma Kuroda, Shintaro Sato et al.·Mar 26, 2025SaveLearn
Drops on architected elastic substrates: A repertoire of regimes at the turn of a knobDrops on a vibrating substrate can experience a variety of motion regimes, including directional motion and climbing. The key ingredient to elicit these regimes is simultaneously activating the…Sergio Santos, Zakari Kujala, Sungyon Lee et al.·Mar 25, 2025SaveLearn
Role of enthalpy transport in laminar premixed hydrogen flames at atmospheric and elevated pressuresThis work discusses the role of diffusive enthalpy transport in relation to the origin of thermodiffusive instability and the resulting enhanced reactivity. Thermodiffusive effects in premixed…Thomas L. Howarth, Terence Lehmann, Michael Gauding et al.·Mar 25, 2025SaveLearn
Three-dimensional variational data assimilation of separated flows using time-averaged experimental dataWe present a novel framework for assimilating planar PIV experimental data using a variational approach to enhance the predictions of the Spalart-Allmaras RANS turbulence model. Our method applies…Uttam Cadambi Padmanaban, Bharathram Ganapathisubramani, Sean Symon·Mar 25, 2025SaveLearn
Effects of appendages on the turbulence and flow noise of a submarine model using high-order schemeThis study employs high-fidelity numerical simulations to investigate the influence of appendages on the turbulent flow dynamics and far-field acoustic radiation of the SUBOFF submarine model at a…Peng Jiang, Shijun Liao, Ling Liu et al.·Mar 25, 2025SaveLearn
Taylor dispersion in variable-density, variable-viscosity pulsatile flowsThe phenomenon of Taylor or shear-induced dispersion of a non-passive scalar field in a pulsatile pipe flow is investigated, accounting for the scalar field's influence on fluid density and transport…Prabakaran Rajamanickam, Adam D. Weiss·Mar 25, 2025SaveLearn
The role of symmetries in the axisymmetric jet mean velocity profile developmentThe fact that physical conservation laws can be derived from symmetry properties of space and time, as shown by Emily N\"other, has been utilized in predicting the development of the round turbulent…Preben Buchhave, Mengjia Ren, Clara Marika Velte·Mar 25, 2025SaveLearn
Axisymmetric thermoviscous and thermal expansion flows for microfluidicsRecent microfluidic experiments have explored the precise positioning of micron-sized particles in liquid environments via laser-induced thermoviscous flow. From micro-robotics to biology at the…Weida Liao, Eric Lauga·Mar 25, 2025SaveLearn
Velocity modulations in view of the elliptical approach at Wendelstein 7-XThe estimation of the poloidal velocity of the turbulence and the poloidal mean flow velocity are important quantities for the study of sheared flows on turbulence and transport. The estimation…A. Krämer-Flecken, X. Han, G. Weir et al.·Mar 25, 2025SaveLearn
Feature-Guided Sampling Strategy for Adaptive Model Order Reduction of Convection-Dominated ProblemsThough high-performance computing enables high-fidelity simulations of complex engineering systems, accurately resolving multi-scale physics for real-world problems remains computationally…Ali Mohaghegh, Cheng Huang·Mar 25, 2025SaveLearn
Nonlinear dynamics of air invasion in one-dimensional compliant fluid networksVascular networks exhibit a remarkable diversity of architectures and transport mechanisms across biological systems. Inspired by embolism propagation in plant xylem, where air invades water-filled…Ludovic Jami, François-Xavier Gauci, Céline Cohen et al.·Mar 25, 2025SaveLearn
Predicting airfoil pressure distribution using boundary graph neural networksSurrogate models are essential for fast and accurate surface pressure and friction predictions during design optimization of complex lifting surfaces. This study focuses on predicting pressure…Sankalp Jena, Gabriel D. Weymouth, Artur K. Lidtke et al.·Mar 24, 2025SaveLearn
Parametric Dynamic Mode Decomposition with multi-linear interpolation for prediction of thermal fields of Al2O3-water nanofluid flows at unseen parametersThe study proposes a data-driven model which combines the Dynamic Mode Decomposition with multi-linear interpolation to predict the thermal fields of nanofluid flows at unseen Reynolds numbers (Re)…Abhijith M S, Sandra S·Mar 24, 2025SaveLearn
A generalisable data-augmented turbulence model with progressive and interpretable corrections for incompressible wall-bounded flowsThe integration of interpretability and generalisability in data-driven turbulence modelling remains a fundamental challenge for computational fluid dynamics applications. This study yields a…Mario J. Rincón, Martino Reclari, Xiang I. A. Yang et al.·Mar 24, 2025SaveLearn
Role of acoustic metasurface in the nonlinear mode-mode interaction and breakdown of hypersonic boundary layerBoundary-layer instability and transition control have drawn extensive attention from the hypersonic community. The acoustic metasurface has become a promising passive control method. Currently, the…Yifeng Chen, Peixu Guo, Chihyung Wen·Mar 24, 2025SaveLearn
On-the-fly Reduced-Order Modeling of the Filter Density Function with Time-Dependent SubspacesA dynamical low-rank approximation is developed for reduced-order modeling (ROM) of the filtered density function (FDF) transport equation, which is utilized for large eddy simulation (LES) of…Aidyn Aitzhan, Peyman Givi, Hessam Babaee·Mar 24, 2025SaveLearn
On the ventilation of surface-piercing hydrofoils under steady-state conditionsThe present study experimentally investigates the onset of ventilation of surface-piercing hydrofoils. Under steady-state conditions, the depth-based Froude number Fr and the angle of attack…Manuel Aguiar Ferreira, Carlos Navas Rodríguez, Gunnar Jacobi et al.·Mar 23, 2025SaveLearn
Cost-effective multi-fidelity strategy for the optimization of high-Reynolds number turbine flows guided by LESA cost-effective multi-objective shape optimization strategy is proposed for high-Reynolds number flows involving complex phenomena such as boundary layer transition, shock-wave interactions, and…Camille Matar, Paola Cinnella, Xavier Gloerfelt·Mar 23, 2025SaveLearn
Data-Efficient Deep Operator Network for Unsteady Flow: A Multi-Fidelity Approach with Physics-Guided SubsamplingThis study presents an enhanced multi-fidelity Deep Operator Network (DeepONet) framework for efficient spatio-temporal flow field prediction when high-fidelity data is scarce. Key innovations…Sunwoong Yang, Youngkyu Lee, Namwoo Kang·Mar 23, 2025SaveLearn