Measurement of Interfacial velocity along the surface of a liquid jet in gas crossflow during primary breakup
File(s)
Accepted version
Author(s)
Wang, Tianyi
Hardalupas, Ioannis
Type
Conference Paper
Abstract
The interfacial velocity along the surface of a breaking liquid jet in gas crossflow is measured using combined Optical Connectivity (OC) and Optical Flow Velocimetry (OFV) techniques. The interfacial motion on the surface structures is reported for a range of gas Weber numbers and momentum ratios. The interfacial liquid jet geometry was decomposed into individual
Proper Orthogonal Decomposition (POD) modes, including the contributions of flapping and wave motions, which characterise the oscillating and windward wave behavior of the liquid jet. The liquid jet images were reconstructed by using selected POD modes, which identified only the corresponding surface structures and quantified their lengthscales. By tracking these surface structures in time, the velocity of the different surface structures was quantified. The results showed that surface structures with
different wavelengths moved with different velocities and led a new non-linear atomization model.
Proper Orthogonal Decomposition (POD) modes, including the contributions of flapping and wave motions, which characterise the oscillating and windward wave behavior of the liquid jet. The liquid jet images were reconstructed by using selected POD modes, which identified only the corresponding surface structures and quantified their lengthscales. By tracking these surface structures in time, the velocity of the different surface structures was quantified. The results showed that surface structures with
different wavelengths moved with different velocities and led a new non-linear atomization model.
Date Acceptance
2022-11-11
Citation
Proceedings of the 11th International Conference on Multiphase Flow (ICMF 2023)
Journal / Book Title
Proceedings of the 11th International Conference on Multiphase Flow (ICMF 2023)
Copyright Statement
This paper is embargoed until publication.
Source
11th International Conference on Multiphase Flow (ICMF 2023)
Publication Status
Accepted
Start Date
2023-04-02
Finish Date
2023-04-07
Coverage Spatial
Kobe, Japan
Rights Embargo Date
10000-01-01