Coupling cross-shore and longshore sediment transport to model storm response along a mixed sand-gravel coast under varying wave directions
نویسندگان
چکیده
منابع مشابه
Mobilization Thresholds and Partial Transport of a Sand-Gravel Sediment
Twenty-eight coupled observations of flow, transport, and bed surface grain size distribution were made in a laboratory flume using a wide range of flows and a sediment with a very poorly sorted, bimodal grain size distribution. These observations permit the transport rates of individual size fractions to be scaled by the proportion of each size immediately available for transport on the bed su...
متن کاملSandbar Migration Due to Cross-Shore Sediment Transport; A Case Study of Noshahr Coasts, Iran
Cross-shore sediment transport is one of the effective factors in erosion and sedimentation, and affects dynamics of the beach profile in coastal areas. Furthermore, sandbar migration due to cross-shore sediment transport mostly effects beach nourishment, displacement of pollutions trapped in sediments, and organism and plants’ lives. In this manuscript, sandbar migration due to cro...
متن کاملCross-shore suspended sediment transport under tidal currents
The transport of sediment over an intertidal mudflat by a cross-shore tidal current is investigated analytically by formulating a mathematical model of the fluid and particulate motion. The model exploits the low gradient of the intertidal flats and is based upon a shallow-layer approximation. It is found that the sediment transport comprises advection with the mean flow, deposition and erosion...
متن کاملA coastal morphodynamic model for cross-shore sediment transport
A numerical model to represent the mechanisms of cross-shore sediment transport induced by wave and storm events has been established. The model consists of three sub-models (wave transformation, morphodynamic movement, and sedimentation) capable of representing the transport and redistribution of four grain sizes over a coastal area. It is designed to simulate the morphological evolution cause...
متن کاملImpacts of wave and tidal forcing on 3D nearshore processes on natural beaches. Part II: Sediment transport
This is the second of two papers on the 3D numerical modeling of nearshore hydroand morphodynamics. In Part I, the focus was on surf and swash zone hydrodynamics in the cross-shore and longshore directions. Here, we consider nearshore processes with an emphasis on the effects of oceanic forcing and beach characteristics on sediment transport in the crossand longshore directions, as well as on f...
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: Coastal Engineering
سال: 2017
ISSN: 0378-3839
DOI: 10.1016/j.coastaleng.2017.09.009