3 papers
nlin.CD2026
Dynamic Synchronization of Driven Self-Oscillators: Modeling and Experiment
Zhenwei Xu, Ulrich Kuhl, Nicolas Noiray
Synchronization of self-sustained oscillators under fixed-frequency and amplitude forcing is well understood, but how time-varying forcing mangles phase locking has been much less…
math.DS2024
Data-Driven Reduction of the Finite-Element Model of a Tribomechadynamics Benchmark Problem
Ahmed Amr Morsy, Zhenwei Xu, Paolo Tiso +1
Bolted joints can exhibit nonsmooth and significantly nonlinear dynamics. Finite Element Models (FEMs) of this phenomenon require fine spatial discretizations, inclusion of nonline…
physics.flu-dyn2024
Restricted Euler dynamics in free-surface turbulence
Yinghe Qi, Zhenwei Xu, Filippo Coletti
The small-scale velocity gradient is connected to fundamental properties of turbulence at the large scales. By neglecting the viscous and nonlocal pressure Hessian terms, we derive…