BRINK DEPTH IN NONAERATED OVERFALLS.

Christodoulou George, C

dc.contributor.author	Christodoulou George, C	en
dc.date.accessioned	2014-03-01T01:06:24Z
dc.date.available	2014-03-01T01:06:24Z
dc.date.issued	1985	en
dc.identifier.issn	0733-9437	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9354
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0022361902&partnerID=40&md5=bc52181ef7bbde8a3e131278026545f5	en
dc.subject.classification	Agricultural Engineering	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Water Resources	en
dc.subject.other	FLOW OF WATER - Control	en
dc.subject.other	HYDRAULIC STRUCTURES	en
dc.subject.other	PRESSURE EFFECTS	en
dc.subject.other	VENTILATION	en
dc.subject.other	BRINK DEPTH	en
dc.subject.other	NONAERATED OVERFALLS	en
dc.subject.other	IRRIGATION CANALS	en
dc.title	BRINK DEPTH IN NONAERATED OVERFALLS.	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1985	en
heal.abstract	Small drop structures employed in irrigation canals are often not ventilated. In this paper the importance of the residual pressure at the brink of a rectangular overfall is quantified by means of the 1-D momentum equation. The pressure acting below the nappe under nonaerated conditions is studied experimenally and correlated to the drop height in nondimensional terms. Comparison is made with relevant results for ventilated drop structures and criterion for defining a low drop is proposed. The results of pressure estimates are then used for a theoretical evaluation of the brink depth ratio as a function of the nondimensional drop height. The theoretical predictions are found to be in good agreement with the experimental results.	en
heal.publisher	ASCE-AMER SOC CIVIL ENGINEERS	en
heal.journalName	Journal of Irrigation and Drainage Engineering	en
dc.identifier.isi	ISI:A1985AVY2200008	en
dc.identifier.volume	111	en
dc.identifier.issue	4	en
dc.identifier.spage	395	en
dc.identifier.epage	403	en