Details
| Translated title of the contribution | Wave loads on hydrodynamically compact concrete structures for offshore wind turbines |
|---|---|
| Original language | German |
| Pages (from-to) | 265-274 |
| Number of pages | 10 |
| Journal | Beton- und Stahlbetonbau |
| Volume | 109 |
| Issue number | 4 |
| Publication status | Published - Apr 2014 |
Abstract
Frequently the Morison equation is used to determine wave and current loads on offshore foundations. This approach does not consider diffraction effects and vertical load components. It is demonstrated that it may lead to uncertain results not only for hydrodynamically compact foundation structures by comparative calculations according to Morison equation and CFD methods on a gravity base foundation. Characteristic wave parameters are determined from long measurement time series for realistic wave trains. They are recognized in the comparative calculations. The shear forces and moments resulting from a frequently occurring and an extreme wave are compared for both methods at defined points of the structure. Flow effects which lead to significantly increasing loads can be detected even for very large waves in relation to the structure. These effects are not detected in calculations according to Morison equation.
ASJC Scopus subject areas
- Engineering(all)
- Building and Construction
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In: Beton- und Stahlbetonbau, Vol. 109, No. 4, 04.2014, p. 265-274.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Wellenbeanspruchung auf hydrodynamisch kompakte Betonstrukturen für Offshore-Windenergieanlagen
AU - Schmidt, Boso
AU - Marx, Steffen
AU - Göhlmann, Joachim
AU - Göthel, Oliver
AU - Grünberg, Jürgen
N1 - Copyright: Copyright 2014 Elsevier B.V., All rights reserved.
PY - 2014/4
Y1 - 2014/4
N2 - Frequently the Morison equation is used to determine wave and current loads on offshore foundations. This approach does not consider diffraction effects and vertical load components. It is demonstrated that it may lead to uncertain results not only for hydrodynamically compact foundation structures by comparative calculations according to Morison equation and CFD methods on a gravity base foundation. Characteristic wave parameters are determined from long measurement time series for realistic wave trains. They are recognized in the comparative calculations. The shear forces and moments resulting from a frequently occurring and an extreme wave are compared for both methods at defined points of the structure. Flow effects which lead to significantly increasing loads can be detected even for very large waves in relation to the structure. These effects are not detected in calculations according to Morison equation.
AB - Frequently the Morison equation is used to determine wave and current loads on offshore foundations. This approach does not consider diffraction effects and vertical load components. It is demonstrated that it may lead to uncertain results not only for hydrodynamically compact foundation structures by comparative calculations according to Morison equation and CFD methods on a gravity base foundation. Characteristic wave parameters are determined from long measurement time series for realistic wave trains. They are recognized in the comparative calculations. The shear forces and moments resulting from a frequently occurring and an extreme wave are compared for both methods at defined points of the structure. Flow effects which lead to significantly increasing loads can be detected even for very large waves in relation to the structure. These effects are not detected in calculations according to Morison equation.
UR - http://www.scopus.com/inward/record.url?scp=84897540179&partnerID=8YFLogxK
U2 - 10.1002/best.201300076
DO - 10.1002/best.201300076
M3 - Artikel
AN - SCOPUS:84897540179
VL - 109
SP - 265
EP - 274
JO - Beton- und Stahlbetonbau
JF - Beton- und Stahlbetonbau
SN - 0005-9900
IS - 4
ER -