EXPERIMENTAL STUDY ON BAR FORMATION UNDER UNSTEADY FLOW CONDITIONS USING A WIDE WIDTH CHANNEL

Autor:	Takashi Kuwamura, Yasuharu Watanabe
Rok vydání:	2003
Předmět:	Bar (music) High Energy Physics::Phenomenology Organic Chemistry Sediment Hydrograph Mechanics Biochemistry Physics::Fluid Dynamics Unsteady flow Flow conditions Linear stability analysis High Energy Physics::Experiment Geotechnical engineering Geology Bank erosion Communication channel
Zdroj:	PROCEEDINGS OF HYDRAULIC ENGINEERING. 47:625-630
ISSN:	1884-9172 0916-7374
DOI:	10.2208/prohe.47.625
Popis:	In rivers that have sections of single-row bar and sections of double-row bar, the occurrence mechanisms of bank erosion, sediment accumulation, and other phenomena differ between these two types of section. To determine which of these sections, non-linear analysis of conditions over the border between the regions is needed.In this study, hydraulic experiments were conducted using a wide width channel in order to understand the bar formation process under unsteady flow conditions. Hydrograph of the experiments were set as the alternate bars and double-raw bars were generated. The results of experiments were compared with linear stability analysis under unsteady flow conditions. It was found that alternate bars and double-raw bars were generated under the influence of flow conditions process.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d615f6e99bf0db9d632a10e87c565c48 https://doi.org/10.2208/prohe.47.625 Zobrazit plný text záznamu