Experimental Investigation on Breakup Pattern of two Liquid Impinging Jets

Please enable javascript in your browser.

Kashanj, Sina | 2018

553 Viewed

Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 51044 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Kebriaee, Azadeh
Abstract:
Liquid atomization have broad range of usage in different industries. Colliding two jets is one method for atomization of different kind of fluids especially high viscose and viscoelastic fluids. Here, we experimentally investigated the effect of skewness and velocity differential of two Newtonian viscose colliding jets on formation of a special oscillating liquid sheet pattern with periodic fragmentation called “fishbone”. For this work, four liquid sheet regimes; triple chain, double chain, close rim, and open rim which fishbone pattern could be observed were produced and Skewness and jets velocity differential were applied to them. A synced CCD camera and stroboscope illumination source were used for capturing the liquid sheet patterns. The range of the skewness and velocity differential where fishbone pattern was observed is reported for each four regimes. Properties of oscillating liquid sheet and droplets of fishbone pattern for each regime is compared. Finally, the mechanism of fishbone pattern formation will be discussed according to the results of experiments
Keywords:
Atomizing ; Impinging Jet ; Liquid Sheet ; Impinging Injector

No TOC