ESTONIAN ACADEMY
PUBLISHERS
eesti teaduste
akadeemia kirjastus
PUBLISHED
SINCE 1952
 
Proceeding cover
proceedings
of the estonian academy of sciences
ISSN 1736-7530 (Electronic)
ISSN 1736-6046 (Print)
Impact Factor (2022): 0.9
Energy budget in a dispersive model for undular bores; pp. 172–181
PDF | doi: 10.3176/proc.2010.2.17

Authors
Henrik Kalisch, Magnar Bjørkavåg
Abstract
Energy conservation properties of weak bores in free-surface flows are considered. The energy loss in the shallow-water theory for an undular bore is thought to be due to upstream oscillations that carry away the energy lost at the front of the bore. Using a higher-order dispersive model equation, this expectation is confirmed through a quantitative study, which shows that there is no energy loss if dispersion is accounted for.
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