Role of flame localization in wavemaker regions on the suppression of combustion instability in turbulent partially-premixed methane flamesThe interaction between flame dynamics & hydrodynamic instabilities plays a fundamental role in determining the stability of swirl-stabilized combustors. In the present study, we investigate the…Abhishek Kushwaha, Bjarne Lieth, Isaac Boxx·Sep 30, 2026SaveLearn
A macroscopic-shadow-corrected lattice Boltzmann method for fast, time-accurate simulation of low-Reynolds-number transient flowsExplicit lattice Boltzmann simulations of slow transient flows are constrained by the acoustic time step. Dual-time stepping can remove this restriction, but slow inner convergence has limited…Yanhui Ding, Yaolong Yu, Yuan Yu et al.·Sep 30, 2026SaveLearn
Two-way actuator-line coupling of a geometrically exact finite-volume beam with incompressible and free-surface flowSlender flexible structures such as mooring lines, aquaculture netting, and aquatic vegetation are too thin to be resolved economically by a body-fitted mesh, yet they exchange momentum with the flow…Amirhossein Taran, Seevani Bali, Željko Tuković et al.·Sep 30, 2026SaveLearn
Coupled Rigid-Body Motion and Binary Phase Change: A Sharp Level-Set/Embedded-Boundary MethodWe develop a sharp-interface method for freely moving solid particles undergoing pure or binary melting. A Level-Set representation preserves the particle geometry during long-distance translation…Chao-Fan Zhang, Zhong-Han Xue, Jie Zhang·Sep 30, 2026SaveLearn
Rigorous vertical averaging for pseudo-3D modeling of precipitation obstructed fluid flowComputing effective hydraulic properties of porous materials with a dynamically changing pore morphology presents a complex and critical challenge in both theoretical and applied sciences. This paper…David Krach, Felix Weinhardt, Holger Class et al.·Sep 30, 2026SaveLearn
Imperfect bifurcations in a laminar 3D bluff body wake: effect of pitch and yawWe study the effect of pitch and yaw on the bifurcations of the laminar flow past an Ahmed body, a bluff body of width-to-height ratio W/H=1.2 and length-to-height ratio L/H=3. When perfectly…Atharva Lagwankar, Alessandro Chiarini, François Gallaire et al.·Sep 30, 2026SaveLearn
Separated flows over swept wings across transitional Reynolds numbersWe explore the effect of wing sweep on the interaction between leading-edge separation and tip vortex for a finite wing with sweep angles Λ=0 to 45, semi-aspect-ratio sAR=2, angle…Laura Victoria Rolandi, Jonathan Quang Tran, Kunihiko Taira·Sep 30, 2026SaveLearn
Fluid drags on a sphere at finite Reynolds number--a classical problem examined afreshEvaluating the drag coefficient Cd for a sphere moving in a fluid at finite Reynolds number Re has become a classical research subject in fluid dynamics, with publications appearing continuously by…James Q Feng·Sep 29, 2026SaveLearn
Directional Control of Droplet Motion via Geometric GatingWe explore new methods for inducing the movement of water droplets on elastomeric substrates, such as polydimethylsiloxane (PDMS). Our approach builds upon the well-known phenomenon that water…Manoj K. Chaudhury, Vanessa Elias, Michelle Fruge·Sep 29, 2026SaveLearn
Stable and Interpretable Multi-Mode Rheological Universal Differential Equations (mmRUDEs) for Data-Driven Constitutive ModelingThe Rheological Universal Differential Equation (RUDE) framework embeds neural networks within a frame-indifferent tensorial constitutive backbone and so enables data-driven discovery of complex…Mohua Das, Nicholas King, Navid Azizan et al.·Sep 29, 2026SaveLearn
Catheter-modulated transient solute dispersion in micropolar annular flow with a retentive and absorptive arterial wallWe study transient solute dispersion in pressure-driven micropolar flow through a concentric annulus representing a catheterized artery. The catheter is impermeable to solute, whereas the arterial…Sohel Ahmed, Nanda Poddar, Kajal Kumar Mondal et al.·Sep 29, 2026SaveLearn
Three-Dimensional Simulation of Flood Propagation at Syabrubesi, NepalThree-dimensional flood propagation through the Bhote Koshi--Langtang Khola junction at Syabrubesi, Nepal, is studied using an incompressible free-surface model. The calculation is motivated by the…Rainald Löhner, Harbir Antil·Sep 29, 2026SaveLearn
Toward Principled Generative Data Assimilation of Turbulent Flows from Sparse ObservationsTurbulent flows are highly chaotic, which makes their instantaneous states difficult to predict. Data assimilation aims to reduce this predictive uncertainty by synthesizing the predictions of a…Baris Turan, Zhuoran Liu, Heng Xiao·Sep 29, 2026SaveLearn
A shape-similarity latent space for fluid interfaces: invertible reduced-order modelling of droplet morphologyA droplet breaks up in tens of microseconds, and a recording captures perhaps a dozen frames. The states in between cannot be recovered without repeating the experiment, and simulating them is too…Ali R. Hashemi, Mohammad R. Hashemi, Pavel B. Ryzhakov·Sep 29, 2026SaveLearn
A conservative bulk-surface closure for soluble-surfactant falling films: an analytical and numerical mass-balance auditAdsorption and desorption redistribute soluble surfactant between a liquid film and its free surface, but cannot change the total inventory in a closed periodic domain. We audit this requirement in…Sanghasri Mukhopadhyay, Asim Mukhopadhyay·Sep 29, 2026SaveLearn
Assessment of subgrid scale mixing models used in LES at high pressuresMolecular mixing models for the conditional scalar diffusion (CSD) term in the filtered mass density function (FMDF) transport equation used in Large Eddy Simulation (LES-FMDF) approach are evaluated…Neelakantan Padmanabhan, Richard S. Miller·Sep 29, 2026SaveLearn
Vortex rings as hydrodynamic dispersants for mitigating underwater oil spillsThe usage of chemical dispersant to promote the breakup of oil droplets remains one of the crucial response strategy towards controlling the rapidly rising droplets during an underwater oil spillage…Siddhant Jain, Saini Jatin Rao, Saptarshi Basu·Sep 29, 2026SaveLearn
Probabilistic Symbolic-Distillation Model of Droplet Collision for Spray Simulation at High Ambient PressuresDroplet collision governs droplet population dynamics in many chemical engineering processes, such as spray drying, spray cooling, agricultural spraying, and combustion. Existing analytical models…Weiming Xu, Tao Yang, Peng Zhang·Sep 29, 2026SaveLearn
Rheotaxis of a Microswimmer in Poiseuille FlowWe investigate the motion of a spherical microswimmer in a planar Poiseuille flow using analytical calculations and numerical simulations. Our results show that the microswimmer's orientation…Baopi Liu, Peng Wang, Xu-Ming Wang et al.·Sep 29, 2026SaveLearn
Radial flow of an Oldroyd-B fluid: theoretical and simulation results in the ultra-dilute limitPressure-driven radial flows of viscoelastic fluids are common in various industrial applications, such as injection molding and extrusion. It is well known that viscoelastic rheology can…Ron Lottem, Evgeniy Boyko·Sep 29, 2026SaveLearn
Leading-edge noise reduction by perforated and porous inserts: a compressible finite-chord prediction without fitted constantsPorous and perforated leading edges reduce turbulence-interaction noise, but predictions of the reduction have relied on material impedances adjusted to the acoustic data. This paper removes that…Seongkyu Lee·Sep 29, 2026SaveLearn
Droplet coalescence on a sloped fibreTransporting droplets along cylindrical surfaces is an emerging area of research with a wide range of practical applications such as fog collection and filtration. Recent experimental studies by Feng…Souradip Chattopadhyay, Leyun Feng, Kyoo-Chul Park et al.·Sep 28, 2026SaveLearn
A Tensorial Extension of Fractional Dissipation at Inertial ScalesWe formulate a scale dependent tensorial extension of a fractional dissipation operator motivated by a macroscopic Navier Stokes correspondence. The starting point is a fractional model in which the…José I. H. López·Sep 28, 2026SaveLearn
Conservative local grid refinement for the vectorial lattice Boltzmann methodWe present a conservative local grid-refinement coupling for the vectorial lattice Boltzmann method (VLBM), a kinetic-type scheme for hyperbolic conservation laws in which each conserved field is…S. A. Hosseini, R. Strassle, I. V. Karlin·Sep 28, 2026SaveLearn
A Conservative Multi-Level Adaptive Velocity-Space Method for the Discrete Unified Gas-Kinetic SchemeMultiscale gas flows often span a wide range of Knudsen numbers, within which the flow varies from near-continuum to highly rarefied and strongly nonequilibrium states. Such flows require kinetic…Weijie Ren, Hang Yu, Zhengyu Tian et al.·Sep 28, 2026SaveLearn