Conveyance estimation in channels with emergent bank vegetation
نویسندگان
چکیده
منابع مشابه
Turbulent Flow through Idealized Emergent Vegetation
This paper presents results of several large-eddy simulations LES of turbulent flow in an open channel through staggered arrays of rigid, emergent cylinders, which can be regarded as idealized vegetation. In this study, two cylinder Reynolds numbers, RD =1,340 and RD=500, and three vegetation densities are considered. The LES of the lowest density and at RD=1,340 corresponds to a recently compl...
متن کاملDrag, turbulence, and diffusion in flow through emergent vegetation
Aquatic plants convert mean kinetic energy into turbulent kinetic energy at the scale of the plant stems and branches. This energy transfer, linked to wake generation, affects vegetative drag and turbulence intensity. Drawing on this physical link, a model is developed to describe the drag, turbulence and diffusion for flow through emergent vegetation which for the first time captures the relev...
متن کاملEffects of Cross-sectional Geometry, Vegetation and Ice on Flow Resistance and Conveyance of Natural Rivers
of Doctoral Dissertation........................................................................................... 3 Väitöskirjan tiivistelmä........................................................................................................... 4 List of appended papers ......................................................................................................... 5 Acknowledgeme...
متن کاملSediment patterns near a model patch of reedy emergent vegetation
24 This laboratory study describes the sediment patterns formed in a sand bed 25 around circular patches of rigid vertical cylinders, representing a patch of reedy 26 emergent vegetation. The patch diameter was much smaller than the channel 27 width. Two patch densities (solid volume fraction 3% and 10%) and two patch 28 diameters (22 and 10 cm) were considered. For flows above the threshold of...
متن کاملCapillary trapping of buoyant particles within regions of emergent vegetation
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. [1] The seeds of many aquatic plants are buoyant and thus transported at the water surface, where they are subject ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Water SA
سال: 2009
ISSN: 0378-4738
DOI: 10.4314/wsa.v35i5.49186