Details
| Originalsprache | Deutsch |
|---|---|
| Publikationsstatus | Veröffentlicht - 2012 |
Abstract
Schlagwörter
- CFD, Numerical Modeling, Offshore Wind, Physical Modeling, Scour, Tripod, Anchorages (foundations), Coastal engineering, Computational fluid dynamics, Mechanical stability, Numerical methods, Numerical models, Offshore oil well production, Offshore wind turbines, Sediment transport, Soil testing, Investigation methods, Large-scale physical model tests, Offshore constructions, Offshore wind energy converters, Offshore winds, Physical model, Sediment transport model, Offshore wind farms
Zitieren
- Standard
- Harvard
- Apa
- Vancouver
- BibTex
- RIS
2012.
Publikation: Konferenzbeitrag › Paper › Forschung › Peer-Review
}
TY - CONF
T1 - Investigations on scour development at tripod foundations for offshore wind turbines: Modeling and application
AU - Stahlmann, A.
AU - Schlurmann, T.
N1 - Cited By :11 Export Date: 1 February 2021
PY - 2012
Y1 - 2012
N2 - Regarding offshore constructions, there is still a lack in knowledge of scour progression for complex structures like foundations for offshore wind energy converters at present, which is however necessary for its dimensioning. As an example of such complex structure types, Tripod foundations are constructed in German offshore wind farms at present. In order to describe physical processes and influencing factors on scour progression from a scientific point of view, comprehensive investigations on the scouring phenomena for Tripod foundations have been carried out and will be partly presented here. The overall investigation method consists of a combination of 1:40 small and 1:12 large scale physical model tests in wave flumes, numerical simulations using CFD methods and in-situ measured scour data. For the numerical modeling part, a sediment transport model formulation has been implemented into OpenFOAM software code. The results show a general variability of scour depending on the load boundary conditions and structural parameters. Scours occur both at the foundation piles and directly under the structure, which in this form could not be predicted using standard approaches, but which has to be taken into account when regarding the soil mechanical stability and the final dimensioning of the foundations.
AB - Regarding offshore constructions, there is still a lack in knowledge of scour progression for complex structures like foundations for offshore wind energy converters at present, which is however necessary for its dimensioning. As an example of such complex structure types, Tripod foundations are constructed in German offshore wind farms at present. In order to describe physical processes and influencing factors on scour progression from a scientific point of view, comprehensive investigations on the scouring phenomena for Tripod foundations have been carried out and will be partly presented here. The overall investigation method consists of a combination of 1:40 small and 1:12 large scale physical model tests in wave flumes, numerical simulations using CFD methods and in-situ measured scour data. For the numerical modeling part, a sediment transport model formulation has been implemented into OpenFOAM software code. The results show a general variability of scour depending on the load boundary conditions and structural parameters. Scours occur both at the foundation piles and directly under the structure, which in this form could not be predicted using standard approaches, but which has to be taken into account when regarding the soil mechanical stability and the final dimensioning of the foundations.
KW - CFD
KW - Numerical Modeling
KW - Offshore Wind
KW - Physical Modeling
KW - Scour
KW - Tripod
KW - Anchorages (foundations)
KW - Coastal engineering
KW - Computational fluid dynamics
KW - Mechanical stability
KW - Numerical methods
KW - Numerical models
KW - Offshore oil well production
KW - Offshore wind turbines
KW - Sediment transport
KW - Soil testing
KW - Investigation methods
KW - Large-scale physical model tests
KW - Offshore constructions
KW - Offshore wind energy converters
KW - Offshore winds
KW - Physical model
KW - Sediment transport model
KW - Offshore wind farms
U2 - 10.9753/icce.v33.sediment.90
DO - 10.9753/icce.v33.sediment.90
M3 - Paper
ER -