Characteristics of Debris Flow Caused by Denser Fluid

Autor:	Toshio Mine, Akira Fukutomi, Muh. Saleh Pallu, Muneo Hirano, Haruyuki Hashimoto
Rok vydání:	1991
Předmět:	Flow velocity Drag Hyperconcentrated flow Mass flow Organic Chemistry Flow (psychology) Mineralogy Geotechnical engineering Critical ionization velocity Biochemistry Debris Geology Debris flow
Zdroj:	PROCEEDINGS OF HYDRAULIC ENGINEERING. 35:459-464
ISSN:	1884-9172 0916-7374
DOI:	10.2208/prohe.35.459
Popis:	Sediment discharge and concentration are experimentally investigated for debris flows caused by denser fluid and by plain water, respectively. Denser fluid is represented by the mixture flow of sand and water. The former debris flow is found to carry more gravels than the latter. Gravel discharge and concentration increase with the decrease in the sand grain diameter. This can be explained by critical fluid velocity for gravel movement in the mixture flow. For the estimate of the critical velocity the drag force is also investigated. The value of the drag force in the mixture flow of very fine sand is close to that in plain water. Therefore, such mixture flow is found to behave like a single fluid.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7fdb86fa54c4e17060e35c59bc50b134 https://doi.org/10.2208/prohe.35.459 Zobrazit plný text záznamu