Ground-based PIV and numerical flow visualization results from the surface-tension-driven convection experiment

Alexander D. Pline; Mark P. Wernet; Kwang-Chung Hsieh

doi:10.1117/12.49601

1 December 1991 Ground-based PIV and numerical flow visualization results from the surface-tension-driven convection experiment

Alexander D. Pline, Mark P. Wernet, Kwang-Chung Hsieh

Author Affiliations +

Proceedings Volume 1557, Crystal Growth in Space and Related Optical Diagnostics; (1991) https://doi.org/10.1117/12.49601
Event: San Diego, '91, 1991, San Diego, CA, United States

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.

Citation Download Citation

Alexander D. Pline, Mark P. Wernet, and Kwang-Chung Hsieh "Ground-based PIV and numerical flow visualization results from the surface-tension-driven convection experiment", Proc. SPIE 1557, Crystal Growth in Space and Related Optical Diagnostics, (1 December 1991); https://doi.org/10.1117/12.49601

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