Abstract
| Original language | English |
|---|---|
| Journal | Proceedings of the Institution of Civil Engineers - Maritime Engineering |
| Volume | 164 |
| Issue number | 4 |
| Pages (from-to) | 159-172 |
| ISSN | 1741-7597 |
| DOIs | |
| Publication status | Published - 2011 |
Cite this
}
Sinking of armour layer around a cylinder exposed to a current. / Nielsen, Anders Wedel; Sumer, B. Mutlu; Fredsøe, Jørgen; Christensen, Erik Damgaard.
In: Proceedings of the Institution of Civil Engineers - Maritime Engineering, Vol. 164, No. 4, 2011, p. 159-172.Research output: Contribution to journal › Journal article › Research › peer-review
TY - JOUR
T1 - Sinking of armour layer around a cylinder exposed to a current
AU - Nielsen, Anders Wedel
AU - Sumer, B. Mutlu
AU - Fredsøe, Jørgen
AU - Christensen, Erik Damgaard
PY - 2011
Y1 - 2011
N2 - The flow processes in a scour protection around a monopile in steady current are described in relation to transport of sediment in the scour protection based on physical model tests. The scour protection consisted of uniformly distributed coarse stones without filter layer. Transport of sediment in the scour protection may cause sinking of the scour protection. This may reduce the stability of the monopile and change for instance the natural frequency of the dynamic response of an offshore wind turbine in an unfavourable manner. The most important flow process with regard to transport of sediment and sinking of the scour protection is found to be the horseshoe vortex. It is found that a larger pile diameter relative to the size of the protection stones will cause a larger sinking and that two layers of stones will decrease the sinking relative to one layer of stones with the same size.
AB - The flow processes in a scour protection around a monopile in steady current are described in relation to transport of sediment in the scour protection based on physical model tests. The scour protection consisted of uniformly distributed coarse stones without filter layer. Transport of sediment in the scour protection may cause sinking of the scour protection. This may reduce the stability of the monopile and change for instance the natural frequency of the dynamic response of an offshore wind turbine in an unfavourable manner. The most important flow process with regard to transport of sediment and sinking of the scour protection is found to be the horseshoe vortex. It is found that a larger pile diameter relative to the size of the protection stones will cause a larger sinking and that two layers of stones will decrease the sinking relative to one layer of stones with the same size.
U2 - 10.1680/maen.2011.164.4.159
DO - 10.1680/maen.2011.164.4.159
M3 - Journal article
VL - 164
SP - 159
EP - 172
JO - Proceedings of the Institution of Civil Engineers - Maritime Engineering
JF - Proceedings of the Institution of Civil Engineers - Maritime Engineering
SN - 1741-7597
IS - 4
ER -