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Proceedings Paper

Ground-based PIV and numerical flow visualization results from the surface-tension-driven convection experiment
Author(s): Alexander D. Pline; Mark P. Wernet; Kwang-Chung Hsieh
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Paper Abstract

The Surface Tension Driven Convection Experiment (STDCE) is a space transportation system flight experiment to study both transient and steady thermocapillary fluid flows aboard the USML-1 Spacelab mission planned for June 1992. One of the components of data collected during the experiment is a video record of the flow field. This qualitative data is then quantified using an all-electronic, two-dimensional particle image velocimetry (PIV) technique called particle displacement tracking (PDT) which uses a simple space domain particle tracking algorithm. Results using the ground-based STDCE hardware, with a radiant flux heating mode, and the PDT system are compared to numerical solutions obtained by solving the axisymmetric Navier Stokes equations with a deformable free surface. The PDT technique is successful in producing a velocity vector field and corresponding stream function from the raw video data which satisfactorily represents the physical flow. A numerical program is used to compute the velocity vector field and corresponding stream function under identical conditions. Both the PDT system and numerical results were compared to a streak photograph, used as a benchmark, with good correlation.

Paper Details

Date Published: 1 December 1991
PDF: 13 pages
Proc. SPIE 1557, Crystal Growth in Space and Related Optical Diagnostics, (1 December 1991); doi: 10.1117/12.49601
Show Author Affiliations
Alexander D. Pline, NASA/Lewis Research Ctr. (United States)
Mark P. Wernet, NASA/Lewis Research Ctr. (United States)
Kwang-Chung Hsieh, Sverdrup Technology (United States)

Published in SPIE Proceedings Vol. 1557:
Crystal Growth in Space and Related Optical Diagnostics
James D. Trolinger; Ravindra B. Lal, Editor(s)

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