On cylindrical container sections for a capillary free-surface experiment

Technical Report · Sun Jan 01 00:00:00 EST 1995

DOI:https://doi.org/10.2172/34410· OSTI ID:34410

Chen, A ^[1]; Concus, P ^[2]; Finn, R ^[3]

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1. Univ. of California, Berkeley, CA (United States). Dept. of Mathematics
2. Lawrence Berkeley Lab., CA (United States)
3. Stanford Univ., CA (United States). Dept. of Mathematics

Small changes in container shape or in contact angle can give rise to large shifts of liquid in a microgravity environment. These shifts can be used as a basis for accurate determination of contact angle. The authors describe container shapes, designed for a forthcoming USML-2 experiment, in the form of a circular cylinder with two diametrically opposed ``canonical proboscis`` protrusions. Computational studies indicate that these containers can be designed to have the desirable properties that sufficient liquid will participate in the shift to permit easy observation, but that the change will be abrupt enough to allow precise contact angle determination.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); National Aeronautics and Space Administration, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 34410
• Report Number(s): LBL-36629; CONF-950130-9; ON: DE95008493; CNN: NASA Grant NAG3-1143; NASA Grant NCC3-329; NSF Grant DMS91-06968; TRN: AHC29511%%120
• Resource Relation: Conference: 33. American Institute of Aeronautics and Astronautics (AIAA) aerospace sciences meeting, Reno, NV (United States), 9-12 Jan 1995; Other Information: PBD: Jan 1995
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
CONTAINERS
FLUID FLOW
LIQUIDS
MASS TRANSFER
SPACE FLIGHT
WEIGHTLESSNESS
FLUID MECHANICS
CYLINDRICAL CONFIGURATION
THEORETICAL DATA
NUMERICAL ANALYSIS