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...
متن کاملmean flow and turbulence in compound channels with vegetated floodplains
the study of flow in compound channels with vegetated floodplains is essential to assessing the development of the stage-discharge relationship and sediment and pollutant transport. the present study experimentally investigated mean flow and turbulence characteristics in a prismatic compound channel. the experimental program consisted of vegetated and non-vegetated floodplains with different re...
متن کاملEvaluation of turbulence closure models under spilling and plunging breakers in the surf zone
Turbulence closure models are evaluated for application to spilling and plunging breakers in the surf zone using open source computational fluid dynamics software. A new library of turbulence models for application to multiphase flows has been developed and is assessed for numerical efficiency and accuracy by comparing against existing laboratory data for surface elevation, velocity and turbule...
متن کاملSelf-similarity of Mean Flow in Pipe Turbulence
Based on our previous modi…ed log-wake law in turbulent pipe ‡ows, we invent two compound similarity numbers (Y; U), where Y is a combination of the inner variable y + and outer variable , and U is the pure e¤ect of the wall. The two similarity numbers can well collapse mean velocity pro…le data with di¤erent moderate and large Reynolds numbers into a single universal pro…le. We then propose an...
متن کاملThe Vertical Structure of Shallow Water Flow in the Surf Zone and Inner Shelf
1. Theoretical investigations of the vertical structure of mean currents, tidal flows, and low frequency (infragravity) oscillations on the inner shelf and inside the surf zone. This work expands on recent theoretical developments for shear instabilities that follow methodology developed for tidal flows on the continental shelf. Results will be compared with field data examined as part of the s...
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ژورنال
عنوان ژورنال: PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN
سال: 1996
ISSN: 0912-7348,1884-8265
DOI: 10.2208/prooe.12.37