Negative surge: Difference between revisions

Latest revision as of 11:35, 23 October 2019

Definition

Instationary reduction of the water level in case of coagulation caused by a sudden change in flow (shut-off, pick-up).; Such as a decrease in water level at wave speed, eg. opening surge, shut-off surge, removal surge.

Synonyms

Abbreviations

Source

translated from DIN 4044 & DIN 4054

Related terms

Additional links

Overview

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 {{GlossaryEntry
+|definition=Instationary reduction of  the water level in case of coagulation caused by a sudden change in flow (shut-off, pick-up).; Such as a decrease in water level at wave speed, eg. opening surge, shut-off surge, removal surge.
+|source=translated from DIN 4044 & DIN 4054
 |name_de=Sunk
-|definition=A compound or reacting wave action - usually a continuation of the vessel's wash, acting and reacting in opposite directions; the name applied to wave motion with a period intermediate between that of the ordinary wind wave and that of the tide, say from 1/2 to 60 minutes. It is of low height; usually less than 0.3 foot. See also SEICHE; in fluid flow, long interval variations in velocity and pressure, not necessarily periodic, perhaps even transient in nature.
-|synonyms=
-|abbr=
-|source=Glossary of Coastal & Hydraulics Laboratory (CHL), US Army Corps of Engineers (USACE), Vicksburg, USA
-|links=
 }}