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Energy Budget in a Dispersive Model for Undular Bores

Energiabilanss lainelise boori dispersioonmudelis

並列摘要


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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