Surface-access limitation in catalytic porous monoliths: Performance diagnosis using pore-resolved CFDPorous monoliths are promising catalyst supports due to their high surface area, interconnected channels, thermal stability and mechanical robustness. However, their tunable topology complicates…Olivier Guévremont, Olivier Gazil, Federico Galli et al.·Apr 3, 2026SaveLearn
Bifurcations in Stokes Flow SedimentationParticles whose shapes couple translation to rotation display a rich array of behaviors as they sediment at low Reynolds number. We introduce a unifying perspective in which the possible dynamical…Elias Huseby, Pierre Mathier, Meera Das et al.·Apr 3, 2026SaveLearn
How pore-scale disorder controls fluid stretching in porous mediaFluid stretching in porous media governs the mixing of reactants, contaminants, and nutrients, yet how the solid microstructure controls the stretching statistics remains poorly understood. We…J. Kevin Pierce, Tanguy Le Borgne, Francois Renard et al.·Apr 3, 2026SaveLearn
A Multimodal Vision Transformer-based Modeling Framework for Prediction of Fluid Flows in Energy SystemsComputational fluid dynamics (CFD) simulations of complex fluid flows in energy systems are prohibitively expensive due to strong nonlinearities and multiscale-multiphysics interactions. In this…Kiran Yalamanchi, Shivam Barwey, Ibrahim Jarrah et al.·Apr 2, 2026SaveLearn
Parametric Reduced-Order modeling and Closed-Loop Control of Tandem-Cylinder WakesThe flow around two circular cylinders arranged in a tandem exhibits complex wake interactions that lead to amplified unsteady loads, particularly in the co-shedding regime where a fully developed…Tea Vojkovic, Dimitris Boskos, Abel-John Buchner·Apr 2, 2026SaveLearn
Revisiting Conservativeness in Fluid Dynamics: Failure of Non-Conservative PINNs and a Path-Integral RemedyThe choice between conservative and non-conservative formulations is a fundamental dilemma in CFD. While non-conservative forms offer intuitive modeling in primitive variables, they typically produce…Arun Govind Neelan, Ferdin Sagai Don Bosco, Naveen Sagar Jarugumalli et al.·Apr 2, 2026SaveLearn
Effects of gas diffusion layer thickness on PEM fuel cells with composite foam-rib flow fieldsGas diffusion layers (GDLs) play a crucial role for the performance of proton exchange membrane fuel cells (PEMFCs). The utilization of composite foam-rib flow fields (CFRFFs) can alter the reactant…Wei Gao, Qifeng Li, Kai Sun et al.·Apr 2, 2026SaveLearn
Small-Scale Dynamo for Full Spectrum of Hydrodynamic Turbulence in Kazantsev ModelA method is proposed for computing coefficients in the Kazantsev equation of small-scale dynamo for the full spectrum of hydromagnetic turbulence comprising the inertial range together with the range…Leonid Kitchatinov·Apr 2, 2026SaveLearn
A floating body with no preferred orientation: an experimental realizationWe present a simple experimental realization of a two-dimensional floating body that can remain in equilibrium in any orientation. This system is based on a class of shapes known as Zindler curves,…Lucie Pontiggia, Angélique Campaniello, Emmanuel Fort·Apr 2, 2026SaveLearn
Rapidly rotating internally heated convection: bounds on long-time averagesConvection on geophysical and astrophysical scales is subject to rapid rotation and strong heating from within the domain. In studying the long-time behaviour of the solutions for such a system,…Yutong Zhang, Ali Arslan, Stefano Maffei et al.·Apr 1, 2026SaveLearn
A Shakhov-based Bhatnagar-Gross-Krook model for polyatomic molecules and for atomic as well as polyatomic mixturesThe implementation of the Shakhov Bhatnagar-Gross-Krook (SBGK) method in the open-source particle code PICLas is extended for modeling of polyatomic molecules, as well as mixtures including atoms and…Marcel Pfeiffer, Franziska Tuttas·Apr 1, 2026SaveLearn
Branching Paths Statistics for confined Flows : Adressing Navier-Stokes Nonlinear TransportRecent advances have allowed to tackle exact path-space probabilistic representations of macroscopic advection-diffusion models involving advection nonlinearities by step forward approaches in terms…Daniel Yaacoub, Stéphane Blanco, Richard Fournier et al.·Apr 1, 2026SaveLearn
Numerical Bow Shock Instabilities in Inert Polyatomic GasesWe investigate inviscid numerical instabilities that arise in simulations of axisymmetric flow over a hypersonic sphere in an inert, calorically perfect gas at low specific heat ratio ($γ…G. S. Sidharth, Anubhav Dwivedi·Apr 1, 2026SaveLearn
Turbulent heat transfer enhancement by compliant wallsThis study investigates the effect of compliant walls on the turbulent heat transfer in channel flows over viscous-hyperelastic walls. We perform Direct Numerical Simulations, fully resolving the…Morie Koseki, Marco Edoardo Rosti·Apr 1, 2026SaveLearn
Optimization-Based Discovery of A Non-Attracting Flow State in An Oscillating-Cylinder WakeIn the flow past a stationary circular cylinder, the classical Karman vortex street arises from a Hopf bifurcation of the steady flow at the critical Reynolds number. Although this solution becomes…Daiwei Dong, Wenbo Cao, Wei Suo et al.·Apr 1, 2026SaveLearn
High Resolution and High-Speed Live Optical Flow VelocimetryParticle Image Velocimetry (PIV) typically relies on cross-correlation,which makes it difficult to obtain instantaneous velocity fields that are both spatially dense and available in real time at…Juan Pimienta, Jean-Luc Aider·Apr 1, 2026SaveLearn
Predictor-Driven Diffusion for Spatiotemporal GenerationMultiscale spatial structure complicates temporal prediction because small-scale spatial fluctuations influence large-scale evolution, yet resolving all scales is often intractable. Standard…Yuki Yasuda, Tobias Bischoff·Mar 31, 2026SaveLearn
Instabilities in flow through and around a circular array of cylindersThis paper presents results of two-dimensional direct numerical simulations (DNS) and global linear stability analyses (based on mean flow and base flow) of a viscous incompressible flow past a…Huaibao Zhang, Yongliang Yang, Guangxue Wang et al.·Mar 31, 2026SaveLearn
Self-scaling tensor basis neural network for Reynolds stress modeling of wall-bounded turbulenceRecent advances in data-driven turbulence modeling have established tensor basis neural networks (TBNN) as a physically grounded framework for Reynolds-stress closure in Reynolds-averaged…Zelong Yuan, Yuzhu Pearl Li·Mar 31, 2026SaveLearn
A framework for diagnosing inertial lift generation in wall-bounded flows: application to eccentric rotating cylinders in Newtonian and shear-thinning fluidsA body moving in a wall-bounded flow often experiences a hydrodynamic lift force normal to the wall, which plays an important role in many fluid systems. In this study, we develop a framework for…Masafumi Hayashi, Kazuyasu Sugiyama·Mar 31, 2026SaveLearn
Piezoelectric tiles for passive flow rate monitoring across a surfaceWe introduce a method for measuring the velocity of turbulent fluid flow passing through a pipe using piezoelectric tiles without penetrating the pipe, and without having previously designed the pipe…S. Hales Swift, Ihab F. El-Kady·Mar 30, 2026SaveLearn
Data-informed lifting line theoryWe present a data-driven framework that extends the predictive capability of classical lifting-line theory (LLT) to a wider aerodynamic regime by incorporating higher-fidelity aerodynamic data from…Arjun Sharma, Jonas A. Actor, Peter A. Bosler·Mar 30, 2026SaveLearn
The Closure Challenge: a benchmark task for machine learning in turbulence modellingWe introduce a field-wide benchmark challenge for machine learning in Reynolds-averaged Navier-Stokes (RANS) turbulence modelling. Though open-source datasets exist for training data-driven…Ryley McConkey, Tyler Buchanan, Tess Smidt et al.·Mar 30, 2026SaveLearn
Edge turbulence controlled by topologically self-optimized fluxes in fusion devicesThe integration of a theory regarding the dynamics of averaged magnetic moment in a turbulent setting with the concept of a self-optimized cascade loop of helical fluxes, either spontaneously or…A. Bershadskii·Mar 30, 2026SaveLearn
Effects of gravity on lean hydrogen/air flame instability: From linear scaling law to nonlinear morphology evolutionThe instability characteristics of lean hydrogen/air flames have attracted considerable research attention, yet the effect of gravity remains insufficiently understood. In this study, time-resolved…Qizhe Wen, Yan Wang, Linlin Yang et al.·Mar 30, 2026SaveLearn