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Numerical Modeling of Tsunami-Induced Scouring around a Square Column: Performance Assessment of FLOW-3D and Delft3D.
- Source :
-
Journal of Coastal Research . 2020, Vol. 36 Issue 6, p1278-1291. 14p. 1 Color Photograph, 5 Diagrams, 1 Chart, 5 Graphs. - Publication Year :
- 2020
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Abstract
- April Le Quéré, P.; Nistor, I., and Mohammadian, A., 2020. Numerical modeling of tsunami-induced scouring around a square column: Performance assessment of FLOW-3D and Delft3D. Journal of Coastal Research, 36(6), 1278–1291. Coconut Creek (Florida), ISSN 0749-0208. In recent years, tsunamis have caused considerable damage to coastal infrastructures and inflicted numerous casualties in coastal communities in the impacted regions. The information, which the design requirements for tsunami-resistant infrastructures is based on, is still in its preliminary stages. The focus of the study was to investigate, by means of a numerical model, the scouring occurring around a single, square column subjected to tsunami floods. A three-dimensional (3D) hydrostatic numerical model (Delft3D) and a 3D nonhydrostatic model (FLOW-3D) were used to replicate a series of physical tests conducted at the University of Ottawa, which consisted of a dam-break wave impacting onto a single square column installed over a movable sediment bed. These experimental tests were conducted in the Dambreak Flume at the University of Ottawa. Four different turbulence models and two different sediment-transport models were tested to find the most appropriate combination, which could model the complex flow characteristics associated with a dam-break–type bore. An extensive review of the hydrodynamic and scouring performance of various numerical models was also included in this study. [ABSTRACT FROM AUTHOR]
- Subjects :
- *TSUNAMI damage
*TSUNAMIS
*FLUMES
*SEDIMENT transport
Subjects
Details
- Language :
- English
- ISSN :
- 07490208
- Volume :
- 36
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Journal of Coastal Research
- Publication Type :
- Academic Journal
- Accession number :
- 146867772
- Full Text :
- https://doi.org/10.2112/JCOASTRES-D-19-00181.1