Investigation into the Dispersion Coefficients for Natural Rivers by Using a Radiotracer Method

被引：1

作者：

Jung, Sung-Hee ^{[1
]}

Kim, Jong-Bum ^{[1
]}

Kim, Jin-Seop ^{[1
]}

Jin, Joon-Ha ^{[1
]}

Hyun, Jae-Hyuk ^{[2
]}

Seo, Il-won ^{[3
]}

机构：

[1] Korea Atom Energy Res Inst, Dept Radioisotope R&D, Taejon, South Korea

[2] Chungnam Natl Univ, Dept Environm Engn, Taejon, South Korea

[3] Seoul Natl Univ, Sch Civil Urban Geosyst Engn, Seoul, South Korea

来源：

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY | 2008年

关键词：

transverse dispersion coefficient; natural river; radiotracer; simple moment method;

D O I：

10.1080/00223131.2008.10875857

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The mixing characteristics of natural rivers were investigated by analyzing their radioisotope concentration curves for transverse dispersion coefficients. The radioisotope was instantaneously injected into a river as a point source by means of an underwater glass-vial crusher. The detection was made with 60 2inch Nal(TI) scintillation detectors bound to 6 transverse lines at a downstream position. The multi-channel data acquisition systems, specifically fabricated by the research group for field studies, collected and processed the detection signals transmitted from the detectors. Transverse dispersion coefficient was determined by a moment method on the basis of field measurement data. As a result, the averaged transverse coefficients were 0.25 for S-River and 0.24 for H-River. This result was compared with the conventional values calculated with the empirically proposed formulas and its physical meaning is discussed.

引用

页码：337 / 339

页数：3