Re-creation of site-specific multi-directional waves with non-collinear current
Re-creation of site-specific multi-directional waves with non-collinear current
复制标题
使用非共线电流重新创建特定地点的多向波
DOI:
10.1016/j.oceaneng.2017.10.047
复制
发表时间:
2018
影响因子:
5
通讯作者:
Draycott S
中科院分区:
文献类型:
--
作者:
Draycott S
Site-specific wave data can be used to improve the realism of tank test conditions and resulting outputs. If this data is recorded in the presence of a current, then the combined conditions must be re-created to ensure wave power, wavelength and steepness are correctly represented in a tank. In this paper we explore the impacts of currents on the wave field and demonstrate a simple, effective methodology for re-creating combined wave-current scenarios. Regular waves, a parametric unidirectional spectrum, and a complex site-specific directional sea state were re-created with current velocities representing 0.25, 0.5, and 1.0 m/s full scale. Waves were generated at a number of angles relative to the current, providing observations of both collinear and non-collinear wave-current interactions. Wave amplitudes transformed by the current were measured and corrected linearly, ensuring desired frequency and wavenumber spectra in the presence of current were obtained. This empirical method proved effective after a single iteration. Frequency spectra were within 3% of desired and wave heights normally within 1%. The generation-measurement-correction procedure presented enables effective re-creation of complex wave-current scenarios. This capability will increase the realism of tank testing, and help de-risk devices prior to deployment at sea.
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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:
2014
期刊:
影响因子:
--
作者:
S. Draycott;T. Davey;D. Ingram;J. Lawrence;A. Day;L. Johanning
通讯作者:
L. Johanning
DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
D. R. Noble
通讯作者:
D. R. Noble
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
R. Pascal
通讯作者:
R. Pascal