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An intelligent data acquisition system for fluid mechanics researchThis paper describes a novel data acquisition system for use with wind-tunnel probe-based measurements, which incorporates a degree of specific fluid dynamics knowledge into a simple expert system-like control program. The concept was developed with a rudimentary expert system coupled to a probe positioning mechanism operating in a small-scale research wind tunnel. The software consisted of two basic elements, a general-purpose data acquisition system and the rulebased control element to take and analyze data and supplying decisions as to where to measure, how many data points to take, and when to stop. The system was validated in an experiment involving a vortical flow field, showing that it was possible to increase the resolution of the experiment or, alternatively, reduce the total number of data points required, to achieve parity with the results of most conventional data acquisition approaches.
Document ID
19900037302
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Cantwell, E. R. (NASA Ames Research Center Moffett Field, CA, United States)
Zilliac, G. (NASA Ames Research Center Moffett Field, CA, United States)
Fukunishi, Y. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 14, 2013
Publication Date
December 1, 1989
Publication Information
Publication: Experiments in Fluids
Volume: 8
Issue: 3-4,
ISSN: 0723-4864
Subject Category
CYBERNETICS
Distribution Limits
Public
Copyright
Other