Directional spectrum analysis of waves generated with segmented wavemaker

Zhang Ningchuan; Yu Yuxiu; Li Muguo

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Zhang Ningchuan, Yu Yuxiu, Li Muguo. Directional spectrum analysis of waves generated with segmented wavemaker[J]. Haiyang Xuebao, 1999, 21(5): 46-58.

Citation:

Zhang Ningchuan, Yu Yuxiu, Li Muguo. Directional spectrum analysis of waves generated with segmented wavemaker[J]. Haiyang Xuebao, 1999, 21(5): 46-58.

Zhang Ningchuan, Yu Yuxiu, Li Muguo. Directional spectrum analysis of waves generated with segmented wavemaker[J]. Haiyang Xuebao, 1999, 21(5): 46-58.

Citation:

Zhang Ningchuan, Yu Yuxiu, Li Muguo. Directional spectrum analysis of waves generated with segmented wavemaker[J]. Haiyang Xuebao, 1999, 21(5): 46-58.

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Directional spectrum analysis of waves generated with segmented wavemaker

State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024

Received Date: 1997-12-25
Rev Recd Date: 1998-06-15

Abstract

Abstract

The velocity data measured by the acoustic Doppler velocimeter (ADV) and the wave surface data measured by a wave gage array are used to analyse the directional spectrum of wave generated with a segmented wavemaker,The results show that (1) the steadiness of 3-D random waves in time domain is better than their homogeneity in spatial domain; (2) Bayesian approach (BDM) is available for directional spectrum analysis from velocity data and wave surface data; (3) the directional spectrum analysed from velocity data has the same accuracy as that analysed from wave surface data and (4) the directional spectrum with appropriate accuracy can be obtained from three wave parameters,such as three wave surfaces,two component velocities and one wave surface.The preliminary criterion for measuring the accuracy of directional spectrum analysis is proposed.
- Directional spectrum analysis,
- directional spectrum measurement,
- segmented wavemaker,
- 3-D random waves

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References(13)

References

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