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Non-Contact Temperature Requirements (NCTM) for drop and bubble physicsMany of the materials research experiments to be conducted in the Space Processing program require a non-contaminating method of manipulating and controlling weightless molten materials. In these experiments, the melt is positioned and formed within a container without physically contacting the container's wall. An acoustic method, which was developed by Professor Taylor G. Wang before coming to Vanderbilt University from the Jet Propulsion Laboratory, has demonstrated the capability of positioning and manipulating room temperature samples. This was accomplished in an earth-based laboratory with a zero-gravity environment of short duration. However, many important facets of high temperature containerless processing technology have not been established yet, nor can they be established from the room temperature studies, because the details of the interaction between an acoustic field an a molten sample are largely unknown. Drop dynamics, bubble dynamics, coalescence behavior of drops and bubbles, electromagnetic and acoustic levitation methods applied to molten metals, and thermal streaming are among the topics discussed.
Document ID
19900008602
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hmelo, Anthony B. (Vanderbilt Univ. Nashville, TN, United States)
Wang, Taylor G. (Vanderbilt Univ. Nashville, TN, United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1989
Publication Information
Publication: JPL, Proceedings of the Second Noncontact Temperature Measurement Workshop
Subject Category
Materials Processing
Accession Number
90N17918
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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