The Tracer Experimental Method for Determining Longitudinal Dispersion Coefficient of Nature River

Abstract:

Tracer experiment to obtain flow longitudinal dispersion coefficient is the most direct and reliable method. In this paper, the existing natural rivers longitudinal dispersion coefficient tracer experimental method for calculating is analyzed comprehensively. Focuses on the method of moments, the principles and applications of regression analysis, calculus optimization methods, and analyzes their advantages and disadvantages. In recent years the calculus optimization method is outstanding, determine river longitudinal dispersion coefficient method was developed and applied to an instance of some of the new tracer experiment. Local conditions should combine with topographic flow characteristics to select the appropriate calculation methods in practical applications. Finally, some problems of the natural rivers longitudinal dispersion coefficient study that need further investigation were put forward.

• Periodical: Advanced Materials Research (Volume 748)
• Pages: 1155-1159
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.748.1155
• Online since: August 2013
• Authors: Yong Fan, Ke Bin Shi
• Keywords: Dispersion Coefficient, River, Tracer Experimental, Water Pollution

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