Breaking waves on a dynamic Hele-Shaw beach

Onno Bokhove, Bram van der Horn, Devaraj van der Meer, Wout Zweers, Anthony Thornton

Research output: Book/ReportReportProfessional

33 Downloads (Pure)

Abstract

We report the formation of quasi-steady beaches and dunes via breaking waves in our tabletop ‘Hele-Shaw’ beach experiment. Breaking waves are generated by a wave maker, and zeolite particles act as sand. The tank is narrow, just over one-particle diameter wide, creating a quasi-2D set-up. Classical breaker types are observed on a time-scale of about a second. Beach formation under breakers occurs on a longer time-scale, and is a matter of minutes for a range of mono-chromatic wave frequencies. Alternating the wave maker motion between two frequencies generally leads to beach formation but occasionally to formation of a stable dune with water on either side. Finally, the Hele-Shaw configuration explored here experimentally lends itself to multi-scale modeling of beach dynamics.
Original languageEnglish
Place of PublicationEnschede
PublisherUniversity of Twente, Department of Applied Mathematics
Number of pages10
Publication statusPublished - Feb 2012

Publication series

NameMemorandum
PublisherUniversity of Twente, Department of Applied Mathematics
No.1976
ISSN (Print)1874-4850

Keywords

  • Breaking waves
  • Multiphase beach dynamics
  • Mathematical Hele-Shaw set-up

Fingerprint

Dive into the research topics of 'Breaking waves on a dynamic Hele-Shaw beach'. Together they form a unique fingerprint.

Cite this