Experimental study of elliptical jet from sub to supercritical conditions
Abstract
The jet mixing at supercritical conditions involves fluid dynamics as well as thermodynamic phenomena. All the jet mixing studies at critical conditions to the present date have focused only on axisymmetric jets. When the liquid jet is injected into supercritical environment, the thermodynamic transition could be well understood by considering one of the important fluid properties such as surface tension since it decides the existence of distinct boundary between the liquid and gaseous phase. It is well known that an elliptical liquid jet undergoes axis-switching phenomena under atmospheric conditions due to the presence of surface tension. The experimental investigations were carried out with low speed elliptical jet under supercritical condition. Investigation of the binary component system with fluoroketone jet and N{sub 2} gas as environment shows that the surface tension force dominates for a large downstream distance, indicating delayed thermodynamic transition. The increase in pressure to critical state at supercritical temperature is found to expedite the thermodynamic transition. The ligament like structures has been observed rather than droplets for supercritical pressures. However, for the single component system with fluoroketone jet and fluoroketone environment shows that the jet disintegrates into droplets as it is subjected to the chamber conditions even formore »
- Authors:
-
- Department of Aerospace Engineering, Indian Institute of Space Science and Technology, Trivandrum, Kerala 695547 (India)
- Publication Date:
- OSTI Identifier:
- 22257008
- Resource Type:
- Journal Article
- Journal Name:
- Physics of Fluids (1994)
- Additional Journal Information:
- Journal Volume: 26; Journal Issue: 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-6631
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AXIAL SYMMETRY; DROPLETS; FLUID MECHANICS; JETS; LIQUIDS; SURFACE TENSION; VELOCITY
Citation Formats
Muthukumaran, C. K., and Vaidyanathan, Aravind. Experimental study of elliptical jet from sub to supercritical conditions. United States: N. p., 2014.
Web. doi:10.1063/1.4871483.
Muthukumaran, C. K., & Vaidyanathan, Aravind. Experimental study of elliptical jet from sub to supercritical conditions. United States. https://doi.org/10.1063/1.4871483
Muthukumaran, C. K., and Vaidyanathan, Aravind. 2014.
"Experimental study of elliptical jet from sub to supercritical conditions". United States. https://doi.org/10.1063/1.4871483.
@article{osti_22257008,
title = {Experimental study of elliptical jet from sub to supercritical conditions},
author = {Muthukumaran, C. K. and Vaidyanathan, Aravind},
abstractNote = {The jet mixing at supercritical conditions involves fluid dynamics as well as thermodynamic phenomena. All the jet mixing studies at critical conditions to the present date have focused only on axisymmetric jets. When the liquid jet is injected into supercritical environment, the thermodynamic transition could be well understood by considering one of the important fluid properties such as surface tension since it decides the existence of distinct boundary between the liquid and gaseous phase. It is well known that an elliptical liquid jet undergoes axis-switching phenomena under atmospheric conditions due to the presence of surface tension. The experimental investigations were carried out with low speed elliptical jet under supercritical condition. Investigation of the binary component system with fluoroketone jet and N{sub 2} gas as environment shows that the surface tension force dominates for a large downstream distance, indicating delayed thermodynamic transition. The increase in pressure to critical state at supercritical temperature is found to expedite the thermodynamic transition. The ligament like structures has been observed rather than droplets for supercritical pressures. However, for the single component system with fluoroketone jet and fluoroketone environment shows that the jet disintegrates into droplets as it is subjected to the chamber conditions even for the subcritical pressures and no axis switching phenomenon is observed. For a single component system, as the pressure is increased to critical state, the liquid jet exhibits gas-gas like mixing behavior and that too without exhibiting axis-switching behavior.},
doi = {10.1063/1.4871483},
url = {https://www.osti.gov/biblio/22257008},
journal = {Physics of Fluids (1994)},
issn = {1070-6631},
number = 4,
volume = 26,
place = {United States},
year = {Tue Apr 15 00:00:00 EDT 2014},
month = {Tue Apr 15 00:00:00 EDT 2014}
}