4 papers · 1 filter
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…
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…
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…
NeDF: neural deflection fields for sparse-view tomographic background oriented Schlieren
Jiawei Li, Xuhui Meng, Yuan Xiong +3
Three-dimensional (3D) density-varying turbulent flows are widely encountered in high-speed aerodynamics, combustion, and heterogeneous mixing processes. Multi-camera-based tomogra…