Resolving combined wave-current fields from measurements using interior point optimization
Resolving combined wave-current fields from measurements using interior point optimization
复制标题
使用内点优化从测量中解析组合波流场
DOI:
10.1016/j.coastaleng.2019.03.008
复制
发表时间:
2019
影响因子:
4.4
通讯作者:
Draycott S
中科院分区:
文献类型:
--
作者:
Draycott S
Complex wave and wave-current conditions exist in the natural world, and are increasingly emulated in advanced experimental facilities to de-risk the deployment, operation and maintenance of offshore structures and renewable energy devices. This can include combinations of ocean swell, multi-directional wind-driven seas, and reflected wave conditions interacting with a current field. It is vital to understand the full nature of these potentially hazardous conditions so they can be properly simulated in numerical models, to contextualize measurements made in field, and experimental programmes. Here, a numerical framework is presented for isolating both the wave systems and the mean current velocities from measured data using an interior point optimizer.A developed frequency domain solver is used to resolve, from experimentally obtained wave gauge measurements, two opposing wave systems on a collinear current, and used to effectively isolate the wave systems and predict the current velocity using only wave gauge measurements. Thirty five test cases are considered; consisting of five wave spectra interacting with seven different current velocities ranging from −0.3m s-10.3m s-1. Comparisons between the theoretical and derived wave numbers and current velocities show good agreement and the performance of the method is similar to that of existing methodologies while requiring no a priori knowledge of the current velocity impacting the wave field required.Although results are presented for the collinear problem, the presented method can be applied to a wide range of wave and current combinations, and provides a useful tool for increasing understanding of both ocean and experimental conditions.
登录
查看更多内容
DOI:
10.1109/oceans-taipei.2014.6964577
发表时间:
2014
期刊:
--
影响因子:
--
作者:
Ingram D
通讯作者:
Ingram D
影响因子:
5
作者:
Robinson A
通讯作者:
Robinson A
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
S. Draycott
通讯作者:
S. Draycott
DOI:
10.1002/9780470549124
发表时间:
2010-08
期刊:
--
影响因子:
--
作者:
Singiresu S. Rao
通讯作者:
Singiresu S. Rao
DOI:
--
发表时间:
1987
期刊:
影响因子:
--
作者:
E. R. Jefferys
通讯作者:
E. R. Jefferys