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Bubble formation in microgravityTwo KC-135 flight campaigns have been conducted to date which are specifically dedicated to study bubble formation in microgravity. The first flight was conducted during March 14-18, 1994, and the other during June 20-24, 1994. The results from the June 1994 flight have not been analyzed yet, while the results from the March flight have been partially analyzed. In the first flight three different experiments were performed, one with the specific aim at determining whether or not cavitation can take place during any of the fluid handling procedures adopted in the shuttle bioprocessing experiments. The other experiments were concerned with duplicating some of the procedures that resulted in bubble formation, namely the NCS filling procedure and the needle scratch of a solid surface. The results from this set of experiments suggest that cavitation did not take place during any of the fluid handling procedures. The results clearly indicate that almost all were generated as a result of the breakup of the gas/liquid interface. This was convincingly demonstrated in the scratch tests as well as in the liquid fill tests.
Document ID
19950012555
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Antar, Basil N. (Tennessee Univ. Space Inst. Tullahoma, TN, United States)
Date Acquired
September 6, 2013
Publication Date
October 1, 1994
Publication Information
Publication: Alabama Univ., Research Reports: 1994 NASA(ASEE Summer Faculty Fellowship Program
Subject Category
Materials Processing
Accession Number
95N18970
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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