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Parametric Investigation of Liquid Jets in Low GravityAn axisymmetric phase field model is developed and used to model surface tension forces on liquid jets in microgravity. The previous work in this area is reviewed and a baseline drop tower experiment selected for model comparison. This paper uses the model to parametrically investigate the influence of key parameters on the geysers formed by jets in microgravity. Investigation of the contact angle showed the expected trend of increasing contact angle increasing geyser height. Investigation of the tank radius showed some interesting effects and demonstrated the zone of free surface deformation is quite large. Variation of the surface tension with a laminar jet showed clearly the evolution of free surface shape with Weber number. It predicted a breakthrough Weber number of 1.
Document ID
20050186901
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
Chato, David J. (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
September 7, 2013
Publication Date
June 1, 2005
Subject Category
Fluid Mechanics And Thermodynamics
Report/Patent Number
E-15123
AIAA Paper 2003-0997
NASA/TM-2005-213639
Report Number: E-15123
Report Number: AIAA Paper 2003-0997
Report Number: NASA/TM-2005-213639
Meeting Information
Meeting: 41st AIAA Aerospace Sciences Meeting and Exhibit
Location: Reno, NV
Country: United States
Start Date: January 6, 2003
End Date: January 9, 2003
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
OTHER: 22-614-50-04-11
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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