Automated Optical Instrument For Extracting Water Droplet Impingement Data From Wind Tunnel Experiments

G. A. Freund Jr.; F. M. Dickey; R. Elangovan; M. D. Breer; M. Papadakis

doi:10.1117/12.978884

1 January 1987 Automated Optical Instrument For Extracting Water Droplet Impingement Data From Wind Tunnel Experiments

G. A. Freund Jr., F. M. Dickey, R. Elangovan, M. D. Breer, M. Papadakis

Proceedings Volume 0818, Current Developments in Optical Engineering II; (1987) https://doi.org/10.1117/12.978884
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

Extraction of empirical water droplet impingement characteristics from records of wind tunnel dye-tracer experiments has been an extremely time consuming process in the past. Described are a method for extracting impingement data by measuring optical reflectance and a computer controlled laser reflectometer which was designed and built for making these measurements. The instrument increases the efficiency of the data extraction process by at least an order of magnitude. The accuracy of the reflectometer is discussed and some results obtained with the reflectometer are presented. The results are used to verify three-dimensional particle trajectory computer codes, which may then be used for design analysis and certification of aircraft anti-icing/de-icing systems.

Citation Download Citation

G. A. Freund Jr., F. M. Dickey, R. Elangovan, M. D. Breer, and M. Papadakis "Automated Optical Instrument For Extracting Water Droplet Impingement Data From Wind Tunnel Experiments", Proc. SPIE 0818, Current Developments in Optical Engineering II, (1 January 1987); https://doi.org/10.1117/12.978884

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KEYWORDS

Reflectivity

Calibration

Reflectometry

Absorption

Data processing

Optical engineering

Computing systems

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