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Surface Tension Driven Convection Experiment (STDCE)This document reports the results obtained from the Surface Tension Driven Convection Experiment (STDCE) conducted aboard the USML-1 Spacelab in 1992. The experiments used 10 cSt silicone oil placed in an open circular container that was 10 cm wide and 5 cm deep. Thermocapillary flow was induced by using either a cylindrical heater placed along the container centerline or by a CO2 laser. The tests were conducted under various power settings, laser beam diameters, and free surface shapes. Thermistors located at various positions in the test section recorded the temperature of the fluid, heater, walls, and air. An infrared imager was used to measure the free surface temperature. The flow field was studied by flow visualization and the data was analyzed by a PTV technique. The results from the flow visualization and the temperature measurements are compared with the numerical analysis that was conducted in conjunction with the experiment. The compared results include the experimental and numerical velocity vector plots, the streamline plots, the fluid temperature, and the surface temperature distribution.
Document ID
19960035871
Document Type
Contractor Report (CR)
Authors
Ostrach, S. (Case Western Reserve Univ. Cleveland, OH United States)
Kamotani, Y. (Case Western Reserve Univ. Cleveland, OH United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1996
Subject Category
Fluid Mechanics and Heat Transfer
Report/Patent Number
NASA-CR-198476
E-10219
NAS 1.26:198476
Funding Number(s)
PROJECT: RTOP 694-03-0D
CONTRACT_GRANT: NAS3-25937
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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