Lu, XX;
Li, L;
Luo, KH;
Ren, XB;
Liu, Y;
Yan, XF;
(2015)
Investigation on the Dispersal Characteristics of Liquid Breakup in Vacuum.
Journal Of Thermophysics And Heat Transfer
, 30
(2)
pp. 410-417.
10.2514/1.T4665.
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Abstract
This work presents an experimental study on the dispersal characteristics of a liquid jet ejecting into vacuum. The liquid breaking experiments of several kinds of liquid under different pressure and temperature conditions are carried out in a flash chamber. The stability of the jet and the sizes of the droplets or the icing particles formed during liquid flashing dispersing are analyzed. The influences of the superheat degree, spray velocity, and the mass of the volatile liquid mixing in the nonvolatile liquid on these characteristics are discussed. Moreover, the applicability of the two definitions of superheat degree is discussed. The results show that the superheat degree is an important parameter influencing the pattern of the breaking liquid, and the jet velocity has a large influence on the distribution of particle sizes. In addition, mixing some volatile liquid with nonvolatile liquid can enhance the dispersion of the latter.
| Type: | Article |
|---|---|
| Title: | Investigation on the Dispersal Characteristics of Liquid Breakup in Vacuum |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.2514/1.T4665 |
| Publisher version: | http://doi.org/10.2514/1.T4665 |
| Language: | English |
| Additional information: | Copyright © 2016 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. |
| Keywords: | Science & Technology, Physical Sciences, Technology, Thermodynamics, Engineering, Mechanical, Engineering, Condensation Shock, Flash Evaporation, Jets, Atomization, Droplet, Waves, Streams, Sprays, Flow |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1519773 |
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