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KMID : 1024519980070060793
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Journal of the Environmental Sciences
1998 Volume.7 No. 6 p.793 ~ p.801
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A Study on the River Discharge Measurement Techniques
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Kim Sung-Won
Jee Hong-Kee
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Abstract
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In this study, the Dilution Method is used to measure river discharge through the hydraulic model test. the dilution method is divided into Constant-Rate-Infection Method and Slug-Injection Method in the river discharge measurement techniques. When the dilution method is applied in the hydraulic model flume, it is analyzed that the estimated error of constant-rate-injection method is less than that of the slug-in-jection method, and the result shows that floodflow analysis is more efficient than lowflow analysis as compared observed discharge with calculated discharge. The result of statistical error analysis shows that the constant-rate-injection method is appropriate technique for the measurement of the river discharge. Therefore, the dilution method among the river discharge measurement techniques can be applied for the river basin which can’t be measured with current meter or unsteady-flow regime in the urban-small drainage or hydraulic structure equipment area and can be obtained more exact results than any other discharge measurement techniques.
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KEYWORD
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Dilution Method, Constant-Rate-Infection Method, Slug-Injection Method, hydraulic similitude law, mixing length, hydraulic model test
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