The growth of the bulge near a river mouth SCIE SCOPUS

Cited 4 time in WEB OF SCIENCE Cited 0 time in Scopus
Title
The growth of the bulge near a river mouth
Author(s)
Hwang, J. H.; Ahn, J. E.; Park, Y. G.; Jang, D. M.; Kim, B. R.
KIOST Author(s)
Park, Young Gyu(박영규)
Publication Year
2011
Abstract
Freshwater plumes released under various geomorphologic conditions were investigated numerically. When the initial Froude numbers are fixed in the investigation of the effects of geomorphologic variations, the boundary conditions are controlled by changing depths, bottom slopes and widths of the river channel. Depending on these various conditions, plumes diverge around the river mouth into via several paths to up and down the streams and in an offshore direction. In particular, upstream propagation of a plume is produced by the secondary bulge which rccirculates next to the river mouth, with the bulge appearing to move away from the coastal line with increasing depth, which causes the formation of the main bulge. The growth of the main bulge also depends on the geomorphologic conditions, and its differing patterns can be shown using a series of numerical experiments. To examine the effects of the channel width and other variables on the stratification in this study, the overall Froude numbers were compared to the Rossby numbers. A comparison of the Froude number with the plume surface area also confirmed that with a fixed river channel width, the surface area of a plume increases with increasing the Froude number. As the river becomes wider, the stronger stratification enhances the dispersion of freshwater to a wider area.
ISSN
0749-0208
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3925
Bibliographic Citation
JOURNAL OF COASTAL RESEARCH, pp.1048 - 1052, 2011
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
Subject
BUOYANT COASTAL DISCHARGE; PLUME; MODEL; SHELF; FATE
Keywords
River plume; Coastal circulation; Density current; Estuaries
Type
Article
Language
English
Document Type
Article; Proceedings Paper
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
Related Researcher
Research Interests

ocean circulation,ocean mixing,marine debris,해양순환,해양혼합,해양부유물

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