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A laboratory study of the interaction between supercritical, shallow flows and dams

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dc.contributor Hogg, Andrew J. is
dc.contributor Tómas Jóhannesson 1957 is
dc.contributor.author Kristín Martha Hákonardóttir 1973 is
dc.date.accessioned 2013-11-28T15:37:12Z
dc.date.available 2013-11-28T15:37:12Z
dc.date.issued 2003
dc.identifier.uri http://hdl.handle.net/10802/4047
dc.description Myndefni: myndir línurit is
dc.description.abstract We report on a series of laboratory experiments to study the detecting and retarding effect of avalanche defence measures. We find that incompressible, shallow-layer shock dynamics can be used to describe the interaction of high Froude number, steady, dense, granular flows with obstacles, such as detecting and catching dams. Stationary, oblique shocks are formed in the interaction of the flows with detecting dams, while a travelling bore is formed upstream of a catching dam when none of the flow over-tops the dam. As the height of the dam is lowered compared with the depth of the approaching flow, the bore slows down and finally the flow jumps ballistically over the dam and a shock is not formed upstream of the dam en
dc.format.extent 53 s. is
dc.language.iso en
dc.publisher Veðurstofa Íslands is
dc.relation.uri http://www.vedur.is/media/vedurstofan/utgafa/greinargerdir/2003/03038.pdf
dc.subject Snjóflóð is
dc.subject Snjóflóðavarnir is
dc.subject Aurskriður is
dc.subject Ofanflóð is
dc.title A laboratory study of the interaction between supercritical, shallow flows and dams en
dc.type Skannað verk is
dc.type Skýrsla is
dc.identifier.gegnir 000816517


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