IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) FULL PAPERS : THEME 2- HYDRO-ENVIRONMENT : HYDRODYNAMIC CLASSIFICATION OF NATURAL FLOWS USING AN ARTIFICIAL LATERAL LINE AND FREQUENCY DOMAIN F...
HYDRODYNAMIC CLASSIFICATION OF NATURAL FLOWS USING AN ARTIFICIAL LATERAL LINE AND FREQUENCY DOMAIN FEATURES
Author : JEFFREY A. TUHTAN(1,2), NATALIYA STROKINA , GERT TOMING , NAVEED MUHAMMAD , MAARJA KRUUSMAA & JONI-KRISTIAN KÄMÄRÄINEN
The classification of natural flow signatures using conventional measurements in field applications is a challenging task. In this work, we present a new flow sensing device consisting of a fish-shaped sensor body equipped with an artificial lateral line system. Hydrodynamic classification under turbulent flow conditions is demonstrated both in an outdoor laboratory flume with obstacles as well as in a natural environment near and behind a large boulder. Lateral line pressure sensor data acquired in the time domain are converted into a set of frequency domain features. The spectrogram feature classifiers proposed in this work are shown to provide robust and accurate estimates of complex flow conditions which were previously not possible under field conditions. Furthermore, we show that classification using stereo sensor pairs consistently outperforms single sensors.
File Size : 769,900 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) FULL PAPERS
Article : THEME 2- HYDRO-ENVIRONMENT
Date Published : 18/04/2016
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