A robust intermittency equation formulation for transition modeling in Spalart-Allmaras simulations of airfoil flows across a wide range of Reynolds numbersThis paper introduces a new robust formulation for local correlation-based laminar-to-turbulent transition models. This mechanism is incorporated into Reynolds-Averaged Navier-Stokes (RANS)…Valerio D'Alessandro, Matteo Falone, Luca Giammichele et al.·Aug 4, 2025SaveLearn
Numerical and Experimental Evaluation of Chip Evacuation and Lubricant Flow using Optimized Drill Heads for Ejector Deep Hole DrillingEjector deep hole drilling offers great potential to utilize the typical advantages of deep hole drilling processes on conventional machining centers in a cost-effective and resource-efficient…Nuwan Rupasinghe, Sebastian Michel, Andreas Baumann et al.·Aug 4, 2025SaveLearn
A computational fluid dynamics model for the simulation of flashboiling flow inside pressurized metered dose inhalersIn this work we present, for the first time, a computational fluid dynamics tool for the simulation of the metered discharge in a pressurized metered dose inhaler. The model, based on open-source…Riccardo Rossi, Ciro Cottini, Andrea Benassi·Aug 4, 2025SaveLearn
Transition to the buoyancy dominated regime in a planar temporal forced plumeWe study the transition from momentum- to buoyancy-dominated regime in temporal jets forced by gravity. From the conservation of the thermal content and of the volume flux, we develop a simple model…G. Boga, A. Cimarelli, M. Crialesi Esposito et al.·Aug 4, 2025SaveLearn
Physics-informed Fourier Basis Neural Network for Fluid MechanicsSolving partial differential equations (PDEs) is an important yet challenging task in fluid mechanics. In this study, we embed an improved Fourier series into neural networks and propose a…Chao Wang, Shilong Li, Zelong Yuan et al.·Aug 4, 2025SaveLearn
Educational experiments with Particle Image Velocimetry in a small Prandtl water tunnelA small water tunnel was designed as a table top experiment to visualize and measure basic fluid dynamic phenomena. The visualization of the flow by a laser light sheet and the measurement with…William Thielicke, Steffen Risius·Aug 4, 2025SaveLearn
Hybrid Compact Least-Squares and Central Weighted Essentially Non-Oscillatory Schemes for Hyperbolic Conservation Laws on Structured Curvilinear GridsA series of third- and fifth-order hybrid compact least-squares central weighted essentially non-oscillatory schemes are proposed and applied to curvilinear structured grids for the finite volume…Jianhua Pan, Luxin Li, Ji Yin et al.·Aug 4, 2025SaveLearn
A Third-Order Weighted Essentially Non-Oscillatory Compact Least-Squares Scheme for Hyperbolic Conservation Laws on Non-Uniform GridsA third-order weighted essentially non-oscillatory compact least-squares scheme is developed for the finite volume method on structured curvilinear non-uniform grids. The proposed scheme features…Jianhua Pana, Luxin Li, Wei-Gang Zeng·Aug 4, 2025SaveLearn
On the Non-Markovian Navier-Stokes Framework for Turbulence Modeling -- A Preliminary AnalysisThis study explores a formulation of the Navier Stokes equations (NSE) using fractional calculus in modeling turbulence. By generalizing the stress strain constitutive relation to incorporate…Siamak Kazemzadeh Hannani, Ehsan Ghaderi·Aug 3, 2025SaveLearn
Upper bound of transient growth in accelerating and decelerating wall-driven flows using the Lyapunov methodThis work analyzes accelerating and decelerating wall-driven flows by quantifying the upper bound of transient energy growth using a Lyapunov-type approach. By formulating the linearized…Zhengyang Wei, Weichen Zhao, Chang Liu·Aug 2, 2025SaveLearn
Rim destabilization and re-formation upon severance from its expanding sheetUpon radial liquid sheet expansion, a bounding rim forms, with a thickness and stability governed, in part, by the liquid influx from the unsteady connected sheet. We examine how the thickness and…M. Kharbedia, B. Liu, R. A. Meijer et al.·Aug 2, 2025SaveLearn
Active biphasic heat transfer enhancement in vertical natural convectionVertical natural convection (VC), often cannot meet the high heat transfer demands due to the inherent misalignment of the direction of buoyancy (vertical) with the direction of the heat transfer…Haoran Qi, Chaoben Zhao, Yaning Fan et al.·Aug 2, 2025SaveLearn
Fine-tuning physics-informed neural networks for cavity flows using coordinate transformationPhysics-informed neural networks (PINNs) have attracted attention as an alternative approach to solve partial differential equations using a deep neural network (DNN). Their simplicity and capability…Ryuta Takao, Satoshi Ii·Aug 2, 2025SaveLearn
Power loss mechanisms and optimal induction factors for realistic large wind farmsPower loss mechanisms in large wind farms are complex due to the multiscale nature of wind farm aerodynamics. Recent studies based on the two-scale momentum theory have brought new insights into this…Takafumi Nishino, Amanda S. M. Smyth·Aug 1, 2025SaveLearn
SmartFlow: A CFD-solver-agnostic deep reinforcement learning framework for computational fluid dynamics on HPC platformsDeep reinforcement learning (DRL) is emerging as a powerful tool for fluid-dynamics research, encompassing active flow control, autonomous navigation, turbulence modeling and discovery of novel…Maochao Xiao, Yuning Wang, Felix Rodach et al.·Aug 1, 2025SaveLearn
Space-time nonlinear reduced-order modelling for unsteady flowsThis work investigates projection-based Reduced-Order Models (ROMs) formulated in the frequency domain, employing a space-time basis constructed with Spectral Proper Orthogonal Decomposition to…Xiaodong Li, Davide Lasagna·Aug 1, 2025SaveLearn
Output-recurrent gated state space model for multiphase flows modeling and uncertainty quantification of exhaust vehiclesThis paper presents an Output-Recurrent Gated State Space Model (OR-GSSM) for complex multiphase flows modeling and uncertainty quantification of exhaust vehicles during motion. By establishing the…Ruilin Chen·Aug 1, 2025SaveLearn
Practical Kinetic Models for Dense FluidsNonlinear idempotent operator instead of a linear projection is introduced to derive kinetic models for dense fluids. A new lattice Boltzmann model for compressible two-phase flow is derived based on…Ilya Karlin, Seyed Ali Hosseini·Aug 1, 2025SaveLearn
Design, Simulation, and Fabrication of a Hexagonal Microfluidic Platform for Culturing NeuronsDeveloping an organoid computing platform from neurons in vitro demands stable, precisely controlled microenvironments. To address this requirement, we designed, simulated, and fabricated a…Maxx Yung·Aug 1, 2025SaveLearn
Energy cascades in rotating and stratified turbulence in anisotropic domainsThe concept of inverse energy cascades has played a central role in the development of turbulence theory, with applications in two-dimensional and quasi-two-dimensional flows. We examine the presence…Alexandros Alexakis, Raffaele Marino, Pablo D. Mininni·Aug 1, 2025SaveLearn
Solutions of the spray flamelet equations in a non-monotonic mixture fraction spaceSolving the spray flamelet equations in composition space is very challenging, which is attributable to the fact that the maximum value of the mixture fraction, Zmax, is a priori unknown…Felipe Huenchuguala, Luis Fuenzalida, Oscar Orellana et al.·Jul 31, 2025SaveLearn
Flapping dynamics of a compliant membrane in a uniform incoming flowRecent theoretical and experimental investigations have revealed that flapping compliant membrane wings can significantly enhance propulsive performance (e.g. Tzezana and Breuer, 2019, J. Fluid…Chengyao Zhang, Ankang Gao, Xiaojue Zhu·Jul 31, 2025SaveLearn
CFDagent: A Language-Guided, Zero-Shot Multi-Agent System for Complex Flow SimulationWe introduce CFDagent, a zero-shot, multi-agent system that enables fully autonomous computational fluid dynamics (CFD) simulations from natural language prompts. CFDagent integrates three…Zhaoyue Xu, Long Wang, Chunyu Wang et al.·Jul 31, 2025SaveLearn
Wake Stabilization and Force Modulation via Surface Dimples on an Airfoil at Low-Reynolds-NumbersThis study investigates the effect of surface dimples on the unsteady aerodynamics of a National Advisory Committee for Aeronautics airfoil (NACA0012) at a chord-based Reynolds numbers of $Rec =…Putu Brahmanda Sudarsana, Jagmohan Singh, Anchal Sareen·Jul 31, 2025SaveLearn
Viscosity variation in fluid flows across scaleA wide range of natural and engineered fluid flows exhibit spatial or temporal viscosity variations, spanning scales from microbial locomotion to planetary mantle convection. These variations…Arjun Sharma, Ritabrata Thakur, Sharath Jose et al.·Jul 31, 2025SaveLearn