TY - JOUR
T1 - Wave loads on ocean infrastructure increase as a result of waves passing over abrupt depth transitions
AU - Li, Zhenhao
AU - Tang, Tianning
AU - Li, Yan
AU - Draycott, Samuel
AU - Van den bremer, Ton S.
AU - Adcock, Thomas A. A.
PY - 2022/11/23
Y1 - 2022/11/23
N2 - Abrupt changes in water depth are known to lead to abnormal free-surface wave statistics. The present study considers whether this translates into abnormal loads on offshore infrastructure. A fully non-linear numerical model is used which is carefully validated against experiments. The wave kinematics from the numerical model are used as input to a simple wave loading model. We find enhanced overturning moments, an increase of approximately 20%, occur over a distance of a few wavelengths after an abrupt depth transition. We observe similar results for 1:1 and 1:3 slopes. This increase does not occur in linear simulations.
AB - Abrupt changes in water depth are known to lead to abnormal free-surface wave statistics. The present study considers whether this translates into abnormal loads on offshore infrastructure. A fully non-linear numerical model is used which is carefully validated against experiments. The wave kinematics from the numerical model are used as input to a simple wave loading model. We find enhanced overturning moments, an increase of approximately 20%, occur over a distance of a few wavelengths after an abrupt depth transition. We observe similar results for 1:1 and 1:3 slopes. This increase does not occur in linear simulations.
U2 - 10.1007/s40722-022-00269-4
DO - 10.1007/s40722-022-00269-4
M3 - Article
JO - Journal of Ocean Engineering and Marine Energy
JF - Journal of Ocean Engineering and Marine Energy
SN - 2198-6444
ER -