3 papers
physics.flu-dyn2026
Unified Deflection Estimation and Error Analysis for Background-Oriented Schlieren
Jiawei Li, Xiang Li, Chong Pan +1
Background-Oriented Schlieren (BOS) has become a versatile quantitative diagnostic for density-varying flows, in which estimating the light-ray deflection from the measured displac…
physics.flu-dyn2026
Spatial instability analysis and mode transition of a viscoelastic jet in a co-flowing gas stream
Jiawei Li, Ming Wang, Kai Mu +2
Spatial linear instability analysis is employed to investigate the instability of a viscoelastic liquid jet in a co-flowing gas stream. The theoretical model incorporates a non-uni…
physics.flu-dyn2025
Improving Spatial Resolution of Background Oriented Schlieren Based on Directional Rays
Xiang Li, Muen Gao, Weiran Wang +4
The background-oriented Schlieren technique has emerged as a promising method for visualizing density gradients and performing quantitative measurements. However, an inherent const…