A New Paradigm for 3D Turbomachinery Design: Generative Diffusion Model Based Framework with Direct Geometry EncodingThe aerodynamic design of turbomachinery is critical to the performance of the overall energy system, yet it is challenging due to the complex non-linear flow physics and the presence of…Yingfan Geng, Jinhong Wang, Lazaros Papachristodoulou et al.·Jul 29, 2026SaveLearn
Disentangling intermittent flow structure contributions to anomalous scaling and multifractality in turbulenceIntermittency in turbulence manifests as intense vortices and sharp peaks of dissipation. Causing the breakdown of Kolmogorov's simple self-similar theory, it leads to anomalous scaling,…Ritwik Mukherjee, Siddhartha Mukherjee·Jul 29, 2026SaveLearn
Learning Backward Transport for Source LocalizationWe address the problem of locating a chemical source in a flow. Based on the duality between the concentration field and Lagrangian tracer trajectories, we interpret concentration detections as…Maurizio Carbone, Lorenzo Piro·Jul 29, 2026SaveLearn
Rotational equivariance and locality in data-driven subgrid-scale closuresData-driven subgrid-scale closures for large eddy simulation are of significant interest in many engineering and geoscience applications. In this context, several important questions remain about the…Ryley McConkey, Julia Balla, Elyssa Hofgard et al.·Jul 29, 2026SaveLearn
Can we live Danckwerts' dream? Mixing Analysis in a Baffled Stirred Tank Reactor Based on 4D-Particle Tracking ExperimentsWe present an experimental investigation of mixing dynamics within a laboratory-scale 3-liter stirred tank reactor (STR) equipped with two Rushton turbines and three baffles. Using time-resolved,…Eike Steuwe, Thanh Tung Thai, Christian Weiland et al.·Jul 29, 2026SaveLearn
Enhancing hydrogen production in alkaline electrolyzers by using an ultra-fast kinetics surfactantWe study the effect of surfactant adsorption kinetics on water electrolysis performance using Surfynol 465, an ultrafast-kinetics surfactant. High-speed optical diagnostics reveal that Surfynol 465…D. Fernández-Martínez, G. Martín-Zazo, A. Rubio-González et al.·Jul 29, 2026SaveLearn
Extracting informative vortical structures of turbulent wake-extreme vortex gust interactions with machine learningThis study considers extracting causally important vortical structures from the extreme vortex gust-airfoil interaction at a chord-based Reynolds number of 5000. This extraction is achieved by…Ryo Koshikawa, Kai Fukami·Jul 29, 2026SaveLearn
Prediction of Spherical Bubble-Chain-Induced Liquid Flow through Far-Wake Superposition Based on Bubble-Chain HydrodynamicsRecent experimental observations revealed that clean spherical bubble chains generate a nearly uniform upward liquid flow. The physical origin of this liquid flow, however, remains unclear.…Satoi Suzuki, Hiroaki Kusuno, Toshiyuki Sanada·Jul 29, 2026SaveLearn
Thermal convection in 1, 2, 3 and 4 dimensionsWe study by means of direct numerical simulations the influence of the dimensionality of convection on flow properties. We call attention to a few general principles from considering in totality the…Ambrish Pandey, Harshit Tiwari, Katepalli R. Sreenivasan·Jul 29, 2026SaveLearn
Smart strategies to navigate turbulent odor plumes reorienting to local windOlfactory search in turbulent environments is a sensorimotor problem that many animals solve with remarkable efficiency, yet replicating this ability in artificial systems is an enduring challenge…Lorenzo Piro, Maurizio Carbone, Luca Biferale et al.·Jul 29, 2026SaveLearn
Modelling droplet-particle interactions on solid surfaces by coupling the lattice Boltzmann and discrete element methodsWe develop a three-dimensional numerical scheme for investigating interfacial flows coupled with frictional solid particles. Our approach combines the lattice Boltzmann method (LBM) to model the…Abhinav Naga, Xitong Zhang, Junyu Yang et al.·Jul 29, 2026SaveLearn
Reversal of a flat plate into its wake: a minimal model for wake captureIn reciprocating flapping-like motions, wing-wake interaction plays a crucial role in fluid force generation. While this effect's existence has been acknowledged, particularly in explaining…Dirk de Boer, Abel-John Buchner·Jul 28, 2026SaveLearn
Foundations of a solved-volatility stochastic turbulence closure: Itô--Hencky kinematics, source-consistent momentum and finite-correlation realisationMost stochastic closures prescribe a covariance tensor, a noise basis or an eddy-viscosity field. This paper develops a different framework in which the displacement-volatility field is solved…Hsieh-Chen Tsai·Jul 28, 2026SaveLearn
A universal diffuse interface modeling framework for surfactantsWe propose a universal diffuse-interface modeling framework for surfactant transport in two-phase flows, applicable to all solubility scenarios and to any conservative phase field method. The…Shahab Mirjalili, Mathieu Bignolles·Jul 28, 2026SaveLearn
Accurate wetting dynamics via a conservative Allen-Cahn based lattice Boltzmann approach for multiphase flowsIn this work we propose a local geometric wetting boundary condition for a conservative Allen--Cahn-based lattice Boltzmann framework. The prescribed contact angle is imposed through ghost…Paolo Bello, Luca Mander, Marco Lauricella et al.·Jul 28, 2026SaveLearn
Vortex dynamics and air entrainment in dam break wave impacting on vertical walls: A multiphase lattice Boltzmann studyAir entrainment often plays a crucial role in determining impact loads exerted by free-surface wave flows interacting with structures, yet its modelling is often oversimplified in numerical…Massimiliano Mustè, Andrea Montessori, Pietro Prestininzi·Jul 28, 2026SaveLearn
On the scaling of bubble interactions in dynamic turbulence: theoretical, numerical, and experimental studyThis study investigates dilute bubbly decaying homogeneous isotropic turbulence at high Reynolds number using theory, direct numerical simulation, and experiments. The turbulent kinetic energy and…Vivek Kumar, Prasoon Suchandra, Shivam Prajapati et al.·Jul 28, 2026SaveLearn
Numerical simulations and universal saturation profiles for viscous fingering patterns in Hele-Shaw flowHele-Shaw flows with an interface are known to give rise to complex pattern formation, whereby the Saffman-Taylor instability triggers a viscous fingering process accompanied by tip splitting and…Irio M. Coutinho, Liam C. Morrow, Scott W. McCue·Jul 28, 2026SaveLearn
Wall Shear Stress Reconstruction from Concentration: Differentiable Physics and Physics-Informed Neural NetworksWall shear stress (WSS) governs near-wall transport dynamics and is a key hemodynamic indicator in cardiovascular flows, yet remains difficult to infer accurately due to the need for precise…Mahmoud Elhadidy, Siva Viknesh, Roshan M. D'Souza et al.·Jul 28, 2026SaveLearn
An ensemble-variational approach for open-loop flow controlThe design of effective control strategies for unsteady flows governed by complex, nonlinear dynamics remains a central challenge in fluid mechanics. Adjoint-based optimisation methods, while…Riccardo Maranelli, Vincent Mons, Jean-Camille Chassaing et al.·Jul 28, 2026SaveLearn
Inferring the Turbulent Breakup of Colloidal Aggregates Using Graph Neural NetworksSolid aggregates in turbulent suspensions may break under the action of shear stresses. We explore the use of Graph Neural Networks (GNN) to infer aggregate fragmentation once the aggregate structure…Michele Buzzicotti, Massimo Cencini, Giulio Cimini et al.·Jul 28, 2026SaveLearn
Online learning of subgrid-scale models for quasi-geostrophic turbulence in planetary interiorsMachine learning approaches to subgrid-scale (SGS) modelling are now well established in atmospheric and oceanic applications. Among these, online end-to-end learning, where the differentiable solver…Hugo Frezat, Thomas Gastine, Alexandre Fournier·Jul 28, 2026SaveLearn
Pulsation of Burner-Stabilized CH4-O2 Flames Moderated by CO2 AdditionThis study investigated the pulsating instability of burner-stabilized premixed CH4-O2 flames at various levels of CO2 dilution. Experiments were conducted using a water-cooled porous-plug burner of…Xiangyu Nie, Shuoxun Zhang, Shengkai Wang·Jul 28, 2026SaveLearn
Theory and simulation of elastoinertial rectification of oscillatory flows in two-dimensional deformable rectangular channelsOscillatory flows in compliant confinements underpin processes ranging from physiological transport in blood vessels and airways to flow control and pumping in soft microfluidic devices. To…Uday M. Rade, Shrihari D. Pande, Ivan C. Christov·Jul 28, 2026SaveLearn
Projection method for mean resolvent analysis of periodic flowsThe mean resolvent operator predicts the mean linear response to forcing in the frequency domain and provides the optimal linear time-invariant approximation of statistically steady, time-varying…Alessandro Bongarzone, Cédric Content, Denis Sipp et al.·Jul 28, 2026SaveLearn