Modelling deltaic progradation constrained by a moving sediment source

被引：2

作者：

Dai, Hsi-Heng ^{[1
]}

Luz Fernandez, Rocio ^{[2
]}

Parker, Gary ^{[3
]}

Garcia, Marcelo H. ^{[4
]}

Kim, Wonsuck ^{[5
]}

机构：

[1] Tamkang Univ, Dept Water Resources & Environm Engn, Taipei, Taiwan

[2] Univ Nacl Cordoba, CONICET, RA-5016 Cordoba, Argentina

[3] Univ Illinois, Dept Civil & Environm Engn & Geol, Urbana, IL 61801 USA

[4] Univ Illinois, Dept Civil & Environm Engn, Hydrosyst Lab, Urbana, IL 61801 USA

[5] Univ Texas Austin, Jackson Sch Geosci, Dept Geol Sci, Austin, TX 78712 USA

来源：

JOURNAL OF HYDRAULIC RESEARCH | 2013年 / 51卷 / 03期

基金：

美国国家科学基金会;

关键词：

Delta; numerical model; progradation; sediment transport; tailing; turbidity current; SAND-MUD DELTAS; ALLUVIAL FANS; SHEET FLOW; RESERVOIRS; LAKES;

D O I：

10.1080/00221686.2012.762554

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A physically-based moving boundary model of deltaic progradation is developed. Surface of the axially symmetric, inner delta is free to grow or shrink in time, while the sediment source is allowed to migrate along the streamwise direction. Particularly, the model developed here captures the control of a downstream migrating sediment source on a lateral extent of the delta. Along this line, the modelling results provide insight into the sedimentation processes associated with elongated fan-delta systems. Further calculations allow to determining the influence of ratio between water and sediment discharges on delta morphology. The model uses appropriately the laboratory observations described in a companion paper.

引用

页码：284 / 292

页数：9

共 15 条

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