4 papers · 1 filter
Consistency requirement of data-driven subgrid-scale modeling in large-eddy simulation
Xinyi Huang, Sze Chai Leung, H. Jane Bae
Data-driven subgrid-scale (SGS) modeling in the large-eddy simulations (LES) suffers from the inconsistency between the \textit{a priori} tests and the a posteriori tests, which ma…
Effect of subgrid-scale anisotropy on wall-modeled large-eddy simulation of turbulent flow with smooth-body separation
Di Zhou, H. Jane Bae
We examine the role of anisotropic subgrid-scale (SGS) stress in wall-modeled large-eddy simulation (WMLES) of flow over a spanwise-uniform Gaussian-shaped bump, with emphasis on p…
Sensitivity analysis of wall-modeled large-eddy simulation for separated turbulent flow
Di Zhou, H. Jane Bae
In this study, we conduct a parametric analysis to evaluate the sensitivities of wall-modeled large-eddy simulation (LES) with respect to subgrid-scale (SGS) models, mesh resolutio…
Wall Modeling of Turbulent Flows with Varying Pressure Gradients Using Multi-Agent Reinforcement Learning
Di Zhou, H. Jane Bae
We propose a framework for developing wall models for large-eddy simulation that is able to capture pressure-gradient effects using multi-agent reinforcement learning. Within this…