An Advanced Method of Processing Liquid Crystal Video Signals From Transient Heat Transfer Experiments

[+] Author and Article Information
Z. Wang, P. T. Ireland, T. V. Jones

Department of Engineering Science, University of Oxford, Oxford, United Kingdom

J. Turbomach 117(1), 184-189 (Jan 01, 1995) (6 pages) doi:10.1115/1.2835636 History: Received March 10, 1993; Online January 29, 2008


A new method of processing the liquid crystal color change data obtained from transient heat transfer experiments is presented. The approach uses the full-intensity history recorded during an experiment to obtain an accurate measurement of the surface heat transfer coefficient at selected pixels. Results are presented for a model of a turbine blade cooling passage with combined ribs and film cooling holes. The implementation of the technique and the advantages to be gained from its application are discussed.

Copyright © 1995 by The American Society of Mechanical Engineers
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