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Proceedings Paper

Stereoscopic imaging velocimetry for space material processing experiments
Author(s): Yi Ge; Soyoung Stephen Cha
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Paper Abstract

Measurement of 3D three-component velocity fields is of profound importance in microgravity fluid experiments including crystal growth, two-phase flows, and thermocapillary phenomena. Stereoscopic imaging velocimetry (SIV) is an optical nonintrusive technique for measuring gross-field flow, which is advantageous in system simplicity for building compact hardware and in software efficiency for continual near-real-time velocity monitoring. However, the challenge is how to increase spatial resolution, that is, marker particle density while maximizing data recovery rate. In this paper, the new SIV algorithms which utilize neural networks, are presented. Preliminary results from both simulating calculation and experiment show that the neural network algorithms offer very good potential for performance enhancement and has proven to be very useful for the SIV technique.

Paper Details

Date Published: 6 July 1999
PDF: 9 pages
Proc. SPIE 3792, Materials Research in Low Gravity II, (6 July 1999); doi: 10.1117/12.351287
Show Author Affiliations
Yi Ge, Univ. of Illinois/Chicago (United States)
Soyoung Stephen Cha, Univ. of Illinois/Chicago (United States)

Published in SPIE Proceedings Vol. 3792:
Materials Research in Low Gravity II
Narayanan Ramachandran, Editor(s)

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