NDLI: Non-coalescence effects in microgravity (Document No: 19980111133)

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Non-coalescence effects in microgravity (Document No: 19980111133)

Content Provider	NASA Technical Reports Server (NTRS)
Author	Neitzel, G. Paul
Copyright Year	1998
Description	Non-coalescence of two bodies of the same liquid and the suppression of contact between liquid drops and solid surfaces is being studied through a pair of parallel investigations being conducted at the Georgia Institute of Technology and the Microgravity Research and Support (MARS) Center in Naples, Italy. Both non-coalescence and contact suppression are achieved by exploiting the mechanism of thermocapillary convection to drive a lubricating film of surrounding gas (air) into the space between the two liquid free surfaces (non-coalescence) or between the drop free surface and the solid (contact suppression). Earlier experiments performed included flow-visualization experiments in both axisymmetric and (nearly) two-dimensional geometries and quantitative measurements of film thickness in the contact-suppression case in both geometries. Work done in the second year has focused on obtaining quantitative results relating to the effects of variable air pressure, development of analytical and numerical models of non-coalescing droplets and to pursuing potential applications of these self-lubricated systems.
File Size	372515
Page Count	10
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19980111133
Archival Resource Key	ark:/13960/t0tr0v48t
Language	English
Publisher Date	1998-05-01
Access Restriction	Open
Subject Keyword	Materials Processing Coalescing Atmospheric Pressure Flow Visualization Mathematical Models Liquid Surfaces Gas Pressure Film Thickness Microgravity Drops Liquids Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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