ON SIMPLE WAVES AND WEAK SHOCK THEORY FOR THE EQUATIONS OF ALLUVIAL RIVER HYDRAULICS

Authors
ZANRE DDL NEEDHAM DJ
Citation
Ddl. Zanre et Dj. Needham, ON SIMPLE WAVES AND WEAK SHOCK THEORY FOR THE EQUATIONS OF ALLUVIAL RIVER HYDRAULICS, Philosophical transactions-Royal Society of London. Physical sciences and engineering, 354(1721), 1996, pp. 2993-3054
Citations number
24
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Philosophical transactions-Royal Society of London. Physical sciences and engineering → ACNP
ISSN journal
09628428
Volume
354
Issue
1721
Year of publication
1996
Pages
2993 - 3054
Database
ISI
SICI code
0962-8428(1996)354:1721<2993:OSWAWS>2.0.ZU;2-9
Abstract
This paper considers the hydraulic equations governing alluvial river dynamics. The shock-wave classes for this system were described and fu lly analysed by Needham & Hey (1991). The complementary expansion wave classes are determined in this paper. In addition, more general simpl e waves are considered and a weak-shock theory is established. This is used to consider several practical examples, including the dynamics o f dredged river sections, the propagation of sediment slugs and the ef fects of sediment blocking and extraction.