Hydrodynamique et végétation d'une île de l'Isère

Autor:	Jean-Luc Peiry, Jacky Girel, Patrick Sauvaget, Trieu Dong Nguyen, Philippe Belleudy
Rok vydání:	2002
Předmět:	Hydrology Flood myth ved/biology ved/biology.organism_classification_rank.species Shrub Geology Water Science and Technology
Zdroj:	La Houille Blanche. 88:24-31
ISSN:	1958-5551 0018-6368
DOI:	10.1051/lhb/2002015
Popis:	We modelize the flood over an island in a section of the Isere river (France) to evaluate the hazards of the small trees on the island being uprooted or broken. At small discharge, the island is out of water, but it is under water for discharge greater than 700 m 3 /s. This section of Isere is 1100 m long from the Brignoud bridge (the bridge is 15 km upstream of Grenoble), and the island is at 250 m of the bridge, near the right bank. With the building of hydroelectric dams upstream on the river, which have significant impacts on frequent floods (f < 10 years), islands are stabilized and so the shrub growing on them. On the studied island, the small willows have now 7 m height and 10 cm of diameter. We use the software Telemac2D to modelize the bidimensional flow and to calculate the forces acting on the trees, for discharges with frequency of 10, 50 and 100 years.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b897bf06161bb3d066ae33a657a51702 https://doi.org/10.1051/lhb/2002015 Zobrazit plný text záznamu