Theoretical study of wave forces induced by the interaction of oblique waves with perforated caissons

LI Yu-cheng; LIU Hong-jie; TENG Bin; SUN Da-peng

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LI Yu-cheng, LIU Hong-jie, TENG Bin, SUN Da-peng. Theoretical study of wave forces induced by the interaction of oblique waves with perforated caissons[J]. Haiyang Xuebao, 2003, 25(1): 100-109.

Citation:

LI Yu-cheng, LIU Hong-jie, TENG Bin, SUN Da-peng. Theoretical study of wave forces induced by the interaction of oblique waves with perforated caissons[J]. Haiyang Xuebao, 2003, 25(1): 100-109.

LI Yu-cheng, LIU Hong-jie, TENG Bin, SUN Da-peng. Theoretical study of wave forces induced by the interaction of oblique waves with perforated caissons[J]. Haiyang Xuebao, 2003, 25(1): 100-109.

Citation:

LI Yu-cheng, LIU Hong-jie, TENG Bin, SUN Da-peng. Theoretical study of wave forces induced by the interaction of oblique waves with perforated caissons[J]. Haiyang Xuebao, 2003, 25(1): 100-109.

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Theoretical study of wave forces induced by the interaction of oblique waves with perforated caissons

State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China

Received Date: 2002-07-19
Rev Recd Date: 2002-09-25

Abstract

Abstract

The interaction of obliquely incident waves with infinite number of perforated caissons is investigated under the linear assumption that the velocity inside the perforated wall is linearly correlated with the pressure difference between the two sides of wall.The fluid domain is divided into infinite sub-domains according to the wnfiguration of structures, and eigenfunction expansion is applied to expand velocity potentials in each domain.A phase relation is introduced for wave oscillation in each caisson, and structure geometry is considered in constructing the models of reflection waves.The numerical results are compared with the experimental data, and a good agreement between them can be found.The numerical examinations show that velocities at the inner and outer sides of front walls of caissons are close to each other when porous effect parameter is infinite.The wave forces normal to caissons decrease with wave incident angle, and the longitudinal wave forces increase with the wave incident angle when the incident wave frequency is small.
- obliquely incident wave,
- perforated caisson,
- transverse wall,
- wave force

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References(11)

References

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