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) ALL CONTENT : Special sessions : Surface image velocity measurement system for wide rivers using smartphones
Surface image velocity measurement system for wide rivers using smartphones
Author : KWONKYU YU(1), BYUNGMAN YOON (2) & SEOKMIN LEE (3)
Measuring flow discharges in rivers during floods is one of the most difficult tasks in the river engineering field. The measuring work consumes an enormous amount of expenses, and takes a lot of tedious labor and time. It goes as far as to threaten the workers’ lives. Conventionally in Korea, we have used propeller type current meters in mild and slow flow conditions and the traditional float method in flood conditions. The float method measures the time floats pass through two measurement sections and estimates average flowing velocity. Because of the float length and the correction factor, the accuracy of the method has been questioned ceaselessly (Fujita et al., 2007). Though Acoustic Doppler Current Profiler (ADCP) has been introduced to water discharge measurement in Korea as a sophisticated alternative, it is still hard to use during floods.
File Size : 1,043,213 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Special sessions
Date Published : 30/09/2015
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