Open AccessFlow and sediment transport in a sharp river bend using a 3D-RANS model
Author(s) -
Dian Sisinggih,
Sri Wahyuni,
Alfan Rasyid
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/930/1/012033
Subject(s) - reynolds averaged navier–stokes equations , turbulence , sediment transport , flow (mathematics) , mechanics , geology , open channel flow , geotechnical engineering , curvature , sediment , flow conditions , channel (broadcasting) , hydrology (agriculture) , geomorphology , geometry , engineering , physics , mathematics , electrical engineering
Flow dynamics and sediment transport in a river bend have recently been studied using experimental and numerical investigations. A three-dimensional numerical modeling model named NaysCUBE was used in this study to describe the flow pattern and process of sediment transport in a sharp river bend as a complement to the prior work of the physical hydraulic model. The model uses the RANS equation to simulate flow where a fully complex 3D flow is governed. Despite the limitations of the RANS model, NaysCUBE well reproduces the flow pattern and turbulence phenomena in a movable bed channel with sharp curvature. Compared with data from a prior experiment, the morphological adjustment is simulated sufficiently. The three-dimensional flow structures are useful for determining the appropriate countermeasures for local scouring and riverbank protection.