DEVELOPMENT OF A FINITE-AMPLITUDE MORPHODYNAMIC MODEL FOR TIDAL SAND WAVES BASED ON SWASH

Autor:	Marcel Zijlema, Peter Troch, Tomohiro Suzuki, Pieter Rauwoens, Tomas Van Oyen
Rok vydání:	2012
Předmět:	Amplitude General Earth and Planetary Sciences Sediment Development (differential geometry) Geomorphology Sediment transport Tidal current Finite amplitude Geology General Environmental Science Sand wave Swash
Zdroj:	Coastal Engineering Proceedings. 1:18
ISSN:	2156-1028 0589-087X
Popis:	Tidal sand waves are prominent bed forms occurring in coastal seas characterized by non-cohesive sediment deposits and relatively strong tidal currents (0.3 - 1.0 m/s). These bed features have a crest-to-crest distance between 100 and 500 m and are oriented approximately orthogonal to the main direction of the tidal current. Typical amplitudes are of the order of 1 to 10 m. Due to the ability of the bed forms to migrate, tidal sand waves pose serious hazards to many coastal structures such as pipe lines, monopiles and shipping lanes. Insight in the dynamics of these bed forms therefore is crucial for the long-term management of the coastal zone. In this work, we describe the development of a new generic numerical morphodynamic model to simulate the finite amplitude of tidal sand waves based on the hydrodynamic code SWASH.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8498e2b0024023314839e3eb5fcb2e77 https://doi.org/10.9753/icce.v33.posters.18 Zobrazit plný text záznamu