Measurements and Modeling of Long-Period Wave Generated Currents in Port of Long Beach

Author(s):  
David Dykstra
Keyword(s):  
2019 ◽  
Vol 9 (9) ◽  
pp. 1855
Author(s):  
Youn-Ju Jeong ◽  
Min-Su Park ◽  
Jeongsoo Kim ◽  
Sung-Hoon Song

This paper presents the results of wave force tests conducted on three types of offshore support structures considering eight waves and three sea levels to investigate the corresponding wave forces. As a result of this study, it is found that the occurrence of shoaling in shallow water induces a significant increase of the wave force. Most of the test models at the shallow water undergo a nonlinear increase of the wave force with higher wave height increasing. In addition, the larger the diameter of the support structure within the range of this study, the larger the diffraction effect is, and the increase in wave force due to shoaling is suppressed. Under an irregular wave at the shallow water, the wave force to the long-period wave tends to be slightly higher than that of the short period wave since the higher wave height component included in the irregular wave has an influence on the shoaling. In addition, it is found that the influence of shoaling under irregular wave becomes more apparent in the long period.


Author(s):  
Jun MITSUI ◽  
Mikihisa WATANABE ◽  
Shin-ichi KUBOTA ◽  
Akira MATSUMOTO

Author(s):  
Iwao HASEGAWA ◽  
Takashi OIKAWA ◽  
Kyoshi NUKADA ◽  
Takaharu FUKUDA
Keyword(s):  

2014 ◽  
Vol 638-640 ◽  
pp. 1280-1284
Author(s):  
Hui Xiao ◽  
Yi Feng Zhang ◽  
Hong Bo Zhao

According to the measured wave data for one year in Kerry deepwater port sea area, Cameroon, the wave spectrum characteristics calculate using fast Fourier transform method; the result shows that the bimodal spectrum is given priority to this sea area, and the big wave appears in summer and autumn, the long period wave influence is opposite bigger that should be pay attention.


1982 ◽  
Vol 87 (C8) ◽  
pp. 5731 ◽  
Author(s):  
G. A. Meadows ◽  
R. A. Shuchman ◽  
J. D. Lyden

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