Model-Adaptive Simulation of Hierarchical Shallow Water Moment Equations in One DimensionShallow free surface flows are often characterized by both subdomains that require high modeling complexity and subdomains that can be sufficiently accurately modeled with low modeling complexity.…Rik Verbiest, Julian Koellermeier·Oct 29, 2025SaveLearn
Sub-cavity Induced Passive Control of Confined Supersonic Cavity Flows Across Varying Freestream Mach NumbersThe self-sustaining oscillations in cavity flows enhance fluid mixing and promote energy and momentum transport. However, the associated oscillation frequencies can amplify acoustic loading,…Sreejita Bhaduri, Mohammed Ibrahim Sugarno, Ashoke De·Oct 29, 2025SaveLearn
Conditional neural field for spatial dimension reduction of turbulence data: a comparison studyWe investigate conditional neural fields (CNFs), mesh-agnostic, coordinate-based decoders conditioned on a low-dimensional latent, for spatial dimensionality reduction of turbulent flows. CNFs are…Junyi Guo, Pan Du, Xiantao Fan et al.·Oct 29, 2025SaveLearn
Shear-layer effects on the dynamics of unsteady premixed laminar counterflow flamesThe influence of flow non-uniformity and unsteadiness on premixed flames is of considerable interest due to its direct relevance to practical combustion systems. The steady counterflow flame has long…Jose G Rivera Lizarralde, Aditya Potnis, Abhishek Saha·Oct 29, 2025SaveLearn
Exploratory Study of Chaotic Behavior in Walking DropletsThe interaction of 'walking droplets' and capillary waves in a weakly subcritical Faraday wave experiment has been studied as a hydrodynamic analog to Bohmian quantum mechanics (see "Hydrodynamic…Emily Dunn, Bavand Keshavarz, Earl Dowell·Oct 29, 2025SaveLearn
Enhanced quality factors at resonance in acoustofluidic cavities embedded in matched elastic metamaterialsWe show that by embedding liquid-filled acoustofluidic cavities in a metamaterial, the quality factor of the cavity at selected acoustic resonance modes can be enhanced by 2 to 3 orders of magnitude…Valdemar Frederiksen, Henrik Bruus·Oct 29, 2025SaveLearn
Body-Free Simulation of Three-Dimensional Turbulent Cylinder WakesWe present a body-free simulation framework for three-dimensional turbulent cylinder wakes, in which the upstream cylinder is not explicitly resolved. Instead, the incompressible Navier--Stokes…Zhicheng Wang, Theo Käufer, Khemraj Shukla et al.·Oct 28, 2025SaveLearn
Rethinking Pipe Flow Stability: Insights from a Meshless Global AnalysisDespite extensive experimental evidence of turbulence in Hagen Poiseuille flow, linear stability analysis has not yet confirmed its instability. One challenge is the singularity introduced by the…Akash Unnikrishnan, Vinod Narayanan·Oct 28, 2025SaveLearn
Learning constitutive models and rheology from partial flow measurementsConstitutive laws relate fluid stress to deformation and underpin predictions of non-Newtonian behavior in industrial and biological fluids. Standard characterization relies on measurements in…Alp M. Sunol, James V. Roggeveen, Mohammed G. Alhashim et al.·Oct 28, 2025SaveLearn
Leveraging Scale Separation and Stochastic Closure for Data-Driven Prediction of Chaotic DynamicsSimulating turbulent fluid flows is a computationally prohibitive task, as it requires the resolution of fine-scale structures and the capture of complex nonlinear interactions across multiple…Ismaël Zighed, Nicolas Thome, Patrick Gallinari et al.·Oct 28, 2025SaveLearn
Characterisation and extension of a rigid body dynamics solver coupled with OpenFOAM for flight performance analysis of flapping-wing dronesThe extraordinary aerial agility of hummingbirds and insects continues to inspire the design of flapping-wing drones. To replicate and analyze such flight, computational fluid dynamics (CFD)…Romain Poletti, Emanuele Bombardi, Lilla Koloszar et al.·Oct 28, 2025SaveLearn
High-energy droplet collisions in multi-interacting hollow cone spraysDroplets collide in several complex spray environments ranging from sea sprays to combustion chambers, altering their size and velocity characteristics. The present work offers a systematic…Narendra Dev, Varun Kulkarni, Sivakumar Deivandren·Oct 28, 2025SaveLearn
Overshoot-resolved transition modeling based on field inversion and symbolic regressionOvershoot of high-speed transitional skin-friction and heat-transfer values over their fully turbulent levels is well documented by numerous direct numerical simulations (DNS) and experimental…Lei Wu, Zuoli Xiao·Oct 28, 2025SaveLearn
Assessment of modern shock capturing schemes for all-speed flows in the OpenFOAM frameworkOpenFOAM is a widely used computational fluid dynamics (CFD) framework based on the finite volume method for solving a wide range of flow problems. However, its default numerical schemes,…Anurag Adityanarayan Ray, Sreejita Bhaduri, Swetarka Das et al.·Oct 28, 2025SaveLearn
Local polynomial solutions of steady Euler equations for planar ideal fluidsExploring the general analytical solutions to the Euler equations for ideal fluids holds significant theoretical and practical importance. The steady flows in two-dimensional spaces are considered…Wenan Zou·Oct 28, 2025SaveLearn
The Geometry of Contraction-Induced FlowsPeristalsis is the driving mechanism behind a broad array of biological and engineered flows. In peristaltic pumping, a wave-like contraction of the tube wall produces local changes in volume which…Aaron Winn, Eleni Katifori·Oct 28, 2025SaveLearn
High-Speed Imagery Analysis of Droplet Impact on Van der Waals and Non-Van der Waals Soft-Textured Oil-Infused SurfacesThis study investigates the impact of surface functionalization, oil coating, and oil absorption on droplet impact behavior on textured polydimethylsiloxane(PDMS) substrates. The textured surfaces…Shubham S. Ganar, Deepak J., Arindam Das·Oct 27, 2025SaveLearn
Refinement of a Poroelastic Model for Zero Porosity: Finite Element Implementation and Investigation of Fluid Mechanics in the Perivascular SpaceIn conventional formulations of poroelasticity, when the porosity approaches zero or vanishes in some parts of the poroelastic domain, if only temporarily, the governing equations degenerate to those…Mohammad Jannesari, Beatrice Ghitti, Bruce J. Gluckman et al.·Oct 27, 2025SaveLearn
On the choking mechanism in supersonic ejectors: a one-dimensional analysis of Reynolds-Averaged Navier Stokes simulationsEjectors are passive devices used in refrigeration, propulsion, and process industries to compress a secondary stream without moving parts. The engineering modeling of choking in these devices…Jan Van den Berghe, Miguel A. Mendez, Yann Bartosiewicz·Oct 27, 2025SaveLearn
Analysis of Hematocrit-Plasma Separation in a Trifurcated Microchannel by a Diffusive Flux ModelPlatelet-enriched plasma and red blood cells (RBC) are needed in the treatment of blood-related diseases, including anaemia and blood cancer. These essential components must be separated from blood…Rishi Kumar, Indranil Saha Dalal, K. Muralidhar·Oct 27, 2025SaveLearn
Modelling Fluid--Structure Interaction in an Initially Elliptical Elastic-Walled tube: Improved Onset Criterion for Self-Excited OscillationsWe present a theoretical description of the fluid--structure interaction observed within a Starling resistor. The typical setup consists of a pre-stretched finite length thin-walled elastic tube…Daniel J. Netherwood, Robert J. Whittaker·Oct 27, 2025SaveLearn
Fluctuations, Clustering, and Interaction-Driven Dynamics in Sedimenting Particles at Low Galileo Numbers: A Neural Network ApproachIn this study, we investigate the behaviour of sedimenting solid particles and the influence of microscopic particle dynamics on the collective motion of a sedimenting cloud. Departing from…Nejc Vovk, Jana Wedel, Paul Steinmann et al.·Oct 27, 2025SaveLearn
Analysis of accuracy and efficiency of neural networks to simulate Navier-Stokes fluid flows with obstaclesConventional fluid simulations can be time consuming and energy intensive. We researched the viability of a neural network for simulating incompressible fluids in a randomized obstacle-heavy…Rui Hespanha, Elliot McGuire, João Hespanha·Oct 27, 2025SaveLearn
A parametric study of the broadband shock-associated noise in supersonic jets via semi-empirical modelingA semi-empirical model is developed in this paper to predict the broadband shock-associated noise (BBSAN) generated by shock-instability interaction (SII) in imperfectly expanded supersonic jets. The…Binhong Li, Benshuai Lyu·Oct 27, 2025SaveLearn
Gauss Principle in Incompressible Flow: Unified Variational Perspective on Pressure and ProjectionFollowing recent work, this manuscript clarifies what the Gauss-Appell principle determines in incompressible, inviscid flow and how it connects to classical projection methods. At a fixed time,…Karthik Duraisamy·Oct 27, 2025SaveLearn