3 papers
physics.flu-dyn2025
A Relative Liutex Method for Vortex Identification
Jiawei Chen, Yifei Yu, Chaoqun Liu
A relative Liutex vortex identification method is proposed in this study, together with its explicit mathematical formulation. The method is designed to identify vortical structure…
physics.flu-dyn2025
A Dynamic Subgrid-Scale Model Based on Liutex Theory for Wall-Bounded Turbulent Flows
Jiawei Chen, Yifei Yu, Chaoqun Liu
Accurate subgrid-scale (SGS) modeling remains a major challenge in large eddy simulation (LES), particularly for wall-bounded turbulent flows with strong near-wall anisotropy. This…
physics.flu-dyn2025
Near-Wall Scaling and Separation Prediction of a Rotation-Based Subgrid-Scale Stress Model
Jiawei Chen, Yifei Yu, Emran Hossen +1
This paper presents an in-depth analysis of a novel subgrid-scale stress model proposed in 2022, which utilizes the rotational part of the velocity gradient as the velocity scale f…