TY - GEN

T1 - Effect of Breaking Waves on Scour Processes around Circular Offshore Wind Turbine Foundations

A1 - Frigaard,Peter

A1 - Hansen,Erik Asp

A1 - Christensen,Erik Damgaard

A1 - Jensen,Morten S.

AU - Frigaard,Peter

AU - Hansen,Erik Asp

AU - Christensen,Erik Damgaard

AU - Jensen,Morten S.

PB - National Wind Technology Center

PY - 2005

Y1 - 2005

N2 - Scour and scour protection is a major issue for the construction of offshore wind farms. The engineer can either include the scour in his design or he can place a scour protection on the seabed. The optimal solution is highly dependent on the maximal scour depth an unprotected foundation will experience during its lifetime. Today's design practice has not yet been defined for foundations placed in areas with breaking waves. Some engineers include possible wave breaking in the design by increasing scour depth for current alone. So that the design scour depth is considered to be more than 1.5 times the pile diameter. The present study includes some study of scour processes in physical models as well as in a numerical model, under the influence of breaking and broken waves. Only minor influence on the scour depths are observed for the breaking waves.

AB - Scour and scour protection is a major issue for the construction of offshore wind farms. The engineer can either include the scour in his design or he can place a scour protection on the seabed. The optimal solution is highly dependent on the maximal scour depth an unprotected foundation will experience during its lifetime. Today's design practice has not yet been defined for foundations placed in areas with breaking waves. Some engineers include possible wave breaking in the design by increasing scour depth for current alone. So that the design scour depth is considered to be more than 1.5 times the pile diameter. The present study includes some study of scour processes in physical models as well as in a numerical model, under the influence of breaking and broken waves. Only minor influence on the scour depths are observed for the breaking waves.

KW - Scours

KW - Scour Protections

KW - Scour Processes

KW - Wind Farms

KW - Waves

KW - Breaking Waves

KW - Wind Turbines

KW - Offshore Wind Turbines

KW - Foundations

KW - Scours

KW - Scour Protections

KW - Scour Processes

KW - Waves

KW - Breaking Waves

KW - Wind Turbines

KW - Offshore Wind Turbines

KW - Foundations

KW - Wind Farms

UR - http://wind.nrel.gov/public/SeaCon/Proceedings/Copenhagen.Offshore.Wind.2005/documents/papers/Critical_design_aspects/P.Frigaard_Effect_of_breaking_waves_on_scour_processes.pdf

BT - NWTC External Web Site

T2 - NWTC External Web Site

ER -