Optical Visualization and Measurement of Liquid Jet Core in a Coaxial Atomizer With Annular Swirling Air

Kumar, Abhijeet; Sahu, Srikrishna

doi:10.1615/jflowvisimageproc.2018027766

Cited by 7 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although research on the breakup length of the co-annular non-swirling jets has been done, only a handful of studies on the breakup length of the co-annular swirling jets have been reported. Kumar and Sahu [8] obtained an empirical correlation for the turbulent liquid breakup length in a co-annular swirling jet. Dunand et al [9] used a Phase Doppler Analyzer (PDA), tomography, and an optical fiber probe to investigate the breakup of a central water jet by a co-annular swirling air jet.…”

Section: Introductionmentioning

confidence: 99%

The breakup of a laminar liquid jet by coaxial non-swirling and swirling air streams

Liang

Johansen

Linne

2021

ICLASS

View full text Add to dashboard Cite

This paper describes a preliminary study on shear-based spray formation. A laminar liquid jet is ejected inside co-annular non-swirling and swirling air streams respectively. The aerodynamic Weber numbers of the flow cases range from 4 to 121. In terms of the co-annular swirling jet, the swirl number of the flow cases is equal to 1.2 because the critical swirl number of the nozzle is 0.8. High-speed shadowgraphy is utilised to obtain data on the first droplet locations, breakup lengths of the liquid jet, and two-dimensional wave spatiotemporal spectra for the jets. In order to detect the large-scale instabilities of the central liquid jet, proper orthogonal decomposition (POD) is performed on the high-speed shadowgraphic images.

show abstract

Section: Introductionmentioning

confidence: 99%