Near-bed turbulence dissipation measurements in the inner surf and swash zone
نویسندگان
چکیده
منابع مشابه
Scaling surf zone turbulence
[1] Turbulence in the surf zone, the shallow region adjacent to the shoreline, has a key role in beach erosion, fertilization, dispersal, and larval settlement of marine invertebrates, and microbial contamination dilution in beach waters. Breakingwave generated (the dominant source) surf zone turbulence is understood poorly. A new surf zone turbulent dissipation rate scaling is derived, that co...
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[1] Results are presented from a field investigation of near-bed turbulence above degrading waveformed sand ripples in 17-m water depth on the inner shelf. The heights of the 50-cm wavelength primary ripples were about 5 cm at the start of the observation period, and decreased by a factor of 2 within 15 days. The principal degradation mechanism involved fish making pits in the seafloor. Near-be...
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Hydrodynamic forcing with respect to sediment transport and morphologic change, paying particular attention to relevant swash asymmetries, is reviewed. The hydrodynamics are categorized into their individual effects: highand lowfrequency motions, bores and turbulence, in/exfiltration, shear stresses and friction coefficients. Individual effects are then related to their potential for driving or...
متن کاملSwash zone sediment transport
Preface This thesis is the result of a study, investigating the swash zone sediment transport processes. The first part of the thesis work has taken place on the University of Queensland, in Brisbane, Australia. The second part took place in Delft at WL Delft Hydraulics and was funded by the Delft Cluster Project Coasts (03.01.03). My special gratitude goes to Stefan Aarninkhof for his daily as...
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This paper presents the application of the open source non-hydrostatic wave-flow model SWASH to propagation of irregular waves in a barred surf zone, and the model results are discussed by comparing against an extensive laboratory data set. This study focus not only on wave transformation in the surf zone, but also on the numerical prediction of undertow and vertical distribution of turbulence ...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Oceans
سال: 2013
ISSN: 2169-9275
DOI: 10.1002/2013jc009251