NeuroForge: Self-Auditing Neural CFD Surrogates with Calibrated Physics-Residual TrustMachine-learning surrogates for computational fluid dynamics (CFD) predict steady flow fields far faster than classical solvers, but emit a single field with no built-in way to know whether to trust…Ali Jabbary, Kasra Ghanavati·Jul 11, 2026SaveLearn
Relative dispersion and eddy diffusivity in laboratory experiments of β-plane turbulenceWe present the first experimental measures of relative dispersion and turbulent diffusion in rapidly-rotating turbulence in the zonostrophic regime, i.e., in the presence of instantaneous and…Daphné Lemasquerier, Matthew Burke, Benjamin Favier et al.·Jul 11, 2026SaveLearn
Direct Numerical Simulation of Fully Developed Turbulent Channel Flow Based on the Corrected Navier-Stokes EquationsDirect numerical simulations (DNS) of fully developed turbulent channel flows at Retau = 550 were performed to investigate the corrected Navier-Stokes (CNS) equations. Grounded in the fluid…Yifan Wang, Duo Wang, Shuaichen Zhu et al.·Jul 11, 2026SaveLearn
Modeling Equations in Wave-Particle Turbulence SimulationRecently, the wave-particle turbulence simulation (WPTS) has been proposed as a novel framework for non-equilibrium turbulence modeling and simulation. In this work, for the first time the complete…Xiaojian Yang, Gaocheng Liu, Kun Xu·Jul 11, 2026SaveLearn
An integral surface tension scheme for three-dimensional front tracking frameworksSurface tension is central to many two-phase flows, making accurate numerical schemes essential for predicting its effects. The integral formulation introduced by Popinet and Zaleski (1999) provides…Gabriele Gennari, Berend van Wachem·Jul 11, 2026SaveLearn
Continuity equations in the Generalised Lagrangian Mean theoryGeneralised Lagrangian Mean (GLM) theory describes the joint evolution of the mean flow and its perturbations. This paper analyses the exact GLM continuity equations (GLM-CEs), presents them in new…Vladimir A. Vladimirov·Jul 11, 2026SaveLearn
A variational formulation of the adjoint Kutta condition in potential flowWe give a variational formulation of the continuous adjoint Kutta condition for two-dimensional subcritical potential flow, with emphasis on the Kutta condition and the role of the wake. We show that…Carlos Lozano, Jorge Ponsin·Jul 11, 2026SaveLearn
Scale interactions and energy transfer in the turbulent wake of a bluff bodyTurbulent bluff-body wakes exemplify the coexistence of large-scale coherent structures and fine-scale turbulence -- two ends of a wide dynamical range of scales connected through the turbulent…Jinyuan Liu, Sutanu Sarkar·Jul 10, 2026SaveLearn
A Multispecies ESBGK Model for Gas Mixtures with Variable Hard Sphere Transport: Theory and VerificationA multi-species Bhatnagar-Gross-Krook (BGK) model for gas mixtures is presented that achieves the correct species-wise relaxation of velocities, temperatures, and pressure tensors according to the…Marcel Pfeiffer, Franziska Tuttas, Julien Mathiaud et al.·Jul 10, 2026SaveLearn
Flow and Heat Transfer Characteristics of Forced Convection Past an Isoflux Circular Cylinder in Galinstan for Reynolds Numbers up to 600A numerical investigation of steady forced convection heat transfer from an isoflux circular cylinder immersed in the liquid metal Galinstan is presented. The governing streamfunction, vorticity, and…Dipjyoti Nath·Jul 10, 2026SaveLearn
Numerical Simulation of Turbulent Concentric Annular Pipe Flow using One-Dimensional Turbulence (ODT): Part 2: Heat TransferTurbulent concentric coaxial (annular) pipe flow with passive heat transfer is theoretically analyzed and numerically modeled in an extended parametric range using the stochastic one-dimensional…Pei-Yun Tsai, Heiko Schmidt, Marten Klein·Jul 10, 2026SaveLearn
Entropy-Constrained Machine Learning with Residual Data Augmentation for Modeling Chemical KineticsWe present a physics-constrained machine learning framework for accelerating the direct numerical simulation (DNS) of turbulent reacting flows. The model replaces the direct evaluation of detailed…Okezzi Ukorigho, Opeoluwa Owoyele·Jul 10, 2026SaveLearn
Rigorously justified local time stepping in UGKWP method for steady multiscale flow simulationIn this Letter, local time stepping (LTS) is incorporated into the unified gas-kinetic wave-particle (UGKWP) method for steady multiscale flow simulation. It accelerates convergence step by a factor…Wenzhi Guo, Junzhe Cao, Wenpei Long et al.·Jul 10, 2026SaveLearn
Coherence does not always imply causality in wall-bounded turbulenceCompact structures of intense tangential Reynolds stress (Q events) are well-known components of wall-bounded turbulence, and have been shown to be coherent because they approximately govern their…Peng E S Chen, Javier Jimenez·Jul 10, 2026SaveLearn
Physics informed wavelet Fourier representation for multiscale fluid dynamicsMultiscale fluid flows often contain localized flow structures, such as viscous shock layers, wet-dry fronts, steady viscous wakes, decaying vortical structures, and vortex-shedding patterns, whose…Chao Wang, Shilong Li, Yunpeng Wang et al.·Jul 10, 2026SaveLearn
Tracking the boundary between absolute/convective instability using adjoint equationsDetermining absolute/convective instability boundaries conventionally requires repeated saddle searches in the complex-wavenumber plane and a subsequent scan of the physical parameter space to locate…Yue Xiao, Hui Li, Zijing Ding·Jul 10, 2026SaveLearn
Generalizable turbulence closures across bluff-body shapes by PINN-based solver-agnostic trainingData-driven turbulence closures are usually calibrated by inverse methods that embed a CFD solver in the loop, tying the model to a particular discretization and requiring every iterate to yield a…Zhen Zhang, Theo Käufer, Louise Ronglan et al.·Jul 10, 2026SaveLearn
Beyond classical similitude: group theoretic extrapolation of hypersonic stagnation-point boundary layersMotivated by the need to extrapolate the results from ground-based experiments to the conditions of high-speed flight, we present the Lie equivalence symmetry analysis of the hypersonic…Shujaut H. Bader, Daniel J. Bodony·Jul 10, 2026SaveLearn
Numerical study of the sharp stratification limit towards bilayer modelsIn the study of oceanic flows at the geophysical scale, the phenomenon of density stratification plays a central role in the dynamics of the system. Two categories of mathematical models are commonly…Théo Fradin·Jul 10, 2026SaveLearn
Integrating Fourier Neural Operator with Diffusion Model for Autoregressive Predictions of Three-dimensional TurbulenceAccurately autoregressive prediction of three-dimensional (3D) turbulence has been one of the most challenging problems for machine learning approaches. Diffusion models have demonstrated high…Yuchi Jiang, Yunpeng Wang, Huiyu Yang et al.·Jul 10, 2026SaveLearn
A Liquid-Fueled Reactor Network Model for Enhanced NOx Prediction in Gas Turbine CombustorsThis study introduces a liquid-fueled reactor network (LFRN) framework for reduced-order modeling of gas turbine combustors. The proposed LFRN extends conventional gaseous-fueled reactor network…Philip John, Haresh Chandrasekhar, Sourav Saha et al.·Jul 10, 2026SaveLearn
Transformer-Based Inverse Microrheology for Experimental Mechanics at Ultra-High Strain RatesTraditional rheological tools are often limited in characterizing soft materials under ultra-high strain-rate loading conditions (> 1000 s-1) due to constraints in spatiotemporal resolution, loading…Lehu Bu, Zhaohan Yu, Danila Frolkin et al.·Jul 10, 2026SaveLearn
Wall-bounded turbulence needs not be longExperiments on the regeneration of long streaks in flows in which they had originally been damped show that their initial growth is due to the interaction of the mean shear with long cross-flow…Carlos Martinez Lopez, Javier Jimenez·Jul 9, 2026SaveLearn
A Splitting Scheme for Dispersive Shallow Moment EquationsThe well-known Shallow Water Equations (SWE) are used for modeling incompressible free-surface flows whenever the shallowness allows for a vertical-averaging; i.e., vertical effects are negligible in…Ullika Scholz, Robin Paar, Manuel Torrilhon·Jul 9, 2026SaveLearn
Drift of interfaces in forced stably-stratified turbulence and the role of vertically-sheared helical structuresExperimental investigations of forced stably stratified turbulence (SST) have shown that the step-like density profile, made of well-mixed density layers and sharp interfaces alternating along the…Niccolò Cocciaglia, Luca Biferale, Fabio Bonaccorso et al.·Jul 9, 2026SaveLearn