Assimilation of wall-pressure measurements in direct numerical simulations of high-speed flow over a cone-flare geometryEnsemble-variational (EnVar) assimilation of wall-pressure measurements in direct numerical simulations of Mach 6 flow over a cone-flare is performed. The experimental data include pressure spectra…Pierluigi Morra, Brett Tillman, Stuart Laurence et al.·May 14, 2026SaveLearn
Effect of startup modes on cold start performance of PEM fuel cells with different cathode flow fieldsProton Exchange Membrane Fuel Cell (PEMFC) is widely recognized for its cleanliness and high efficiency, but is still facing challenges in cold environments. At low temperatures, the formation of ice…Wenzhe Zhang, Xingxiao Tao, Qifeng Li et al.·May 14, 2026SaveLearn
Evolution of lean hydrogen-air premixed flames under high-frequency acoustic forcing: flame morphology and displacement speedFully compressible numerical simulations of two-dimensional laminar lean hydrogen-air premixed flames have been performed, with the flame front subjected to acoustic forcing through the specification…Xinyi Chen, Frederick W. Young, Umair Ahmed et al.·May 14, 2026SaveLearn
Systematic Evaluation of Stencil Configuration, Forcing Scheme, and Resolution Effects in the Stratified Taylor--Green Vortex: A Lattice Boltzmann StudyThe rigorous simulation of stratified turbulence remains challenging due to pronounced flow anisotropy, suppressed vertical transport, and high sensitivity to numerical dissipation. This study…Hongxuan Zhang·May 14, 2026SaveLearn
The radial Newton problem: nonlinear dynamics of minimal resistance in central fieldsThis paper investigates the nonlinear dynamics of Newton's problem of minimal resistance in radial fields. We move beyond classical translational symmetry to analyze two non-equilibrium…Rafael López·May 14, 2026SaveLearn
Data-driven modeling of multivariate stochastic trajectories -- Application to water wavesA data-driven methodology is proposed to model the distribution of multivariate stochastic trajectories from an observed sample. As a first step, each trajectory in the sample is reduced to a vector…Romain Hascoët·May 14, 2026SaveLearn
Noise dissipation mechanisms of an acoustic liner under grazing flowHigh-fidelity lattice-Boltzmann very-large-eddy simulations are performed to describe the noise dissipation mechanisms in a single cavity acoustic liner subjected to grazing turbulent flow at a…Francesco Scarano, Angelo Paduano, Francesco Avallone·May 14, 2026SaveLearn
Unsupervised simulation of incompressible flows with physics- and equality- constrained artificial neural networksPhysics-informed neural networks (PINNs) have shown promise for solving partial differential equations, yet their success in simulating incompressible flows at high Reynolds numbers remains limited.…Qifeng Hu, Inanc Senocak·May 14, 2026SaveLearn
Electrokinetic Effects on Flow and Ion Transport in Charge-Patterned Corrugated NanochannelsThe phase offset between surface charge modulation and geometric undulations in a corrugated nanochannel provides a tunable mechanism for rectified, diode-like ion transport under purely…Thomas Petersen, Pouya Golchin, Jinwoo Im et al.·May 14, 2026SaveLearn
Real-time reinforcement learning for turbulent state-dependent control in a bluff-body wakeControlling turbulent dynamics remains a major challenge because of its chaotic, multi-scale dynamics, which strongly influence the performance of many fluid systems. Here we report REACT…Junjie Zhang, Chengwei Xia, Xianyang Jiang et al.·May 14, 2026SaveLearn
Policy-DRIFT: Dynamic Reward-Informed Flow Trajectory SteeringSkin-friction drag induced by wall-bounded turbulent flows accounts for a substantial fraction of energy consumption across commercial aerospace, wind energy, and marine transport. Its active…Atharva Mahajan, Abhijeet Vishwasrao, Yuning Wang et al.·May 13, 2026SaveLearn
Free-surface deformations induced by three-dimensional turbulenceWe report the experimental characterization of free-surface deformations generated by three-dimensional homogeneous and isotropic turbulence. Using Fourier transform profilometry in a jet-forced…Michaël Berhanu, Eric Falcon·May 13, 2026SaveLearn
Effects of Thermal Boundary Conditions on Natural Convection and Entropy Generation in Non-Newtonian Power-Law FluidsThis study investigates the role of thermal boundary conditions on natural convection and entropy generation in non-Newtonian power-law fluids confined within a square cavity and a concentric…Lambert Theisen, Satyvir Singh·May 13, 2026SaveLearn
Unexpected Marangoni Condensation in Negative Binary MixturesMarangoni condensation - where surface tension gradients induce instabilities that lead to condensate film breakup into discrete droplets - has traditionally been thought of being restricted to…Abenezer Abere, Patricia B. Weisensee·May 13, 2026SaveLearn
Influence of Prandtl number on heat transfer over a permeable wallThe work considers a fully turbulent flow with heat transfer in a channel half-filled with an array of cubes based on the work of Breugem and Boersma (2005) and Chandesris et al. (2013), at…Wojciech Sadowski, Hakan Demir, Francesca di Mare·May 13, 2026SaveLearn
Optimize discrete loss with finite-difference physics constraint and time-stepping for PDE solvingComputational Fluid Dynamics (CFD) is an important approach for analyzing flow phenomena and predicting engineering-relevant quantities. The governing physics is formulated as partial differential…Yali Luo, Yiye Zou, Heng Zhang et al.·May 13, 2026SaveLearn
Boundary treatment algorithms for meshfree RANS turbulence modelingIn this paper, we propose improved wall-treatment strategies for meshfree methods applied to turbulent flows. The goal is to enhance wall-function handling in simulations of high-Reynolds-number…Mohan Padmanabha, Jörg Kuhnert, Nicolas R. Gauger et al.·May 13, 2026SaveLearn
A HHO formulation for variable density incompressible flows where the density is purely advectedWe propose a Hybrid High-Order (HHO) formulation of the incompressible Navier-Stokes equations with variable density that provides exact conservation of volume and, accordingly, pure advection of the…Lorenzo Botti, Francesco Carlo Massa·May 13, 2026SaveLearn
An Adaptive Real-Time Forecasting Framework for Cryogenic Fluid Management in Space SystemsAccurate real-time forecasting of cryogenic tank behavior is essential for the safe and efficient operation of propulsion and storage systems in future deep-space missions. While cryogenic fluid…Qiyun Cheng, Huihua Yang, Wei Ji·May 13, 2026SaveLearn
Realizability-Constrained Machine Learning for Turbulence Closures in Wake FlowsComputational fluid dynamics (CFD)-driven machine learning frameworks based on symbolic regression offer a promising pathway for turbulence model discovery, but are often hindered by numerical…Talib Ansari, Priyank H. Mehta, Harshal D. Akolekar·May 12, 2026SaveLearn
Interfacial waves from pressure forcing: revisiting classical theories from an IVP perspectiveA localised overpressure translating at a uniform speed greater than a critical value acts at the interface between two deep fluid layers with different densities. We analyse the resulting wave…Vinod Kumar Kadari, Nikhil Yewale, Palas Kumar Farsoiya et al.·May 12, 2026SaveLearn
Structured input-output analysis of oblique turbulent bands in Waleffe flowThis work employs structured input-output analysis (SIOA) to study Waleffe flow. The SIOA framework employs structured uncertainty to include the componentwise structure of nonlinearity in…Jino George, Chang Liu·May 12, 2026SaveLearn
Formulations for scalar boundedness in simulations of turbulent compressible multi-component flows using high-order finite-difference methodsPreserving scalar boundedness is important for numerical schemes used in turbulent compressible multi-component flow simulations to prevent unphysical results and unstable simulations. However,…Ye Wang, Armin Wehrfritz, Evatt R. Hawkes·May 12, 2026SaveLearn
Intermittent two-phase flow in porous media: insights from pore-scale direct numerical simulationRecent X-ray imaging experiments have revealed that multiphase flow through porous media involves transient fluctuations in local occupancy, even under fixed macroscopic steady-state conditions where…Alexandra Karabasova, Sajjad Foroughi, Martin J. Blunt et al.·May 12, 2026SaveLearn
High-lift Wing Separation Control via Bayesian Optimization and Deep Reinforcement LearningThis study investigates active flow control (AFC) of a 30P30N high-lift wing at a Reynolds number Rec = 450,000 and angle of attack α = 23 using wallresolved large-eddy simulations…Ricard Montalà, Bernat Font, Oriol Lehmkuhl et al.·May 12, 2026SaveLearn