Lagrangian-Eulerian dynamics of breaking shallow water waves through tracer tracking of fluid elements

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/105140

Title:	Lagrangian-Eulerian dynamics of breaking shallow water waves through tracer tracking of fluid elements
Authors:	伊林;Pen, Ue-Yu;Chang, Mei-Chu;I, Lin
Contributors:	理學院物理學系
Keywords:	Computer Simulation;Models, Chemical;Rheology - methods;Solutions - chemistry;Water - chemistry;Water Movements
Date:	2013-02-25
Issue Date:	2026-04-23 12:08:09 (UTC+8)
Publisher:	American Physical Society;United States
Abstract:	摘要： We experimentally investigate the Lagrangian-Eulerian dynamics of fluid motion and wave-form evolution for a breaking shallow water wave approaching a slope by tracking tracer motions. It is found that, before breaking, the surface element can climb over the crest and exhibits cyclic oscillation with small forward drift. The increasing asymmetric tangential compression (accumulation) and rarefaction (depletion) in the crest front and the crest are the keys for the crest front steepening with the increasing particle cyclic excursion and forward Stoke drift. Eventually, the surface layer cannot climb over the crest with the vertical front. It curls up and forms an overhanging plunging jet leading the crest, while the lower flow still can reach the crest rear. This process leads to wave breaking with the rapid drop of crest height and the transition from slow divergence to rapid divergence of the adjacent fluid trajectories. 其他題名： Phys Rev E Stat Nonlin Soft Matter Phys 出版者： United States 出版日期： 2013-02 出處： Physical review. E, Statistical, nonlinear, and soft matter physics, 2013-02, Vol.87 (2), p.023017, Article 023017 識別號： ISSN: 1539-3755 識別號： ISSN: 1550-2376 識別號： EISSN: 1550-2376 識別號： DOI: 10.1103/PhysRevE.87.023017 識別號： PMID: 23496620
Appears in Collections:	[Department of Physics] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	11	View/Open

社群 sharing

Loading...