Analysis and Mathematical Physics

, Volume 2, Issue 4, pp 347-366

First online:

A dispersive model for undular bores

  • Alfatih AliAffiliated withDepartment of Mathematics, University of Bergen
  • , Henrik KalischAffiliated withDepartment of Mathematics, University of Bergen Email author 

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In this article, consideration is given to weak bores in free-surface flows. 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.


Undular bore Energy loss Dispersion