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A three-dimensional numerical modeling of multidirectional random wave diffraction by rectangular submarine pits
A three-dimensional numerical model of multidirectional random wave diffraction by rectangular submarine pits has been investigated theoretically in the uniform water depth. In the exterior region, the three-dimensional Green function has been us ed for the solution of the velocity potential and its derivative in fluid interface between regions. The form of the Fourier expansion has also been utilized for the solution of the velocity potential in the interior region. The Mitsuyasu directional spectrum has been di scretized to specify the incident wave conditions for obtaining linear diffraction solutions, and then subsequent cumulative superposition is performed to obtain the random wave results. The results of the present model have been compared with those of previous theoretical studies for both regular and random wave diffraction by single or multiple pits. reasonable agreement was consistently obtained in all cases. In accordance with good agreement from these comparisons, the present numerical model may accurately be utilized to predict the three-dimensional wave field around multiple submarine pits or navigation channels.
A three-dimensional numerical modeling of multidirectional random wave diffraction by rectangular submarine pits
A three-dimensional numerical model of multidirectional random wave diffraction by rectangular submarine pits has been investigated theoretically in the uniform water depth. In the exterior region, the three-dimensional Green function has been us ed for the solution of the velocity potential and its derivative in fluid interface between regions. The form of the Fourier expansion has also been utilized for the solution of the velocity potential in the interior region. The Mitsuyasu directional spectrum has been di scretized to specify the incident wave conditions for obtaining linear diffraction solutions, and then subsequent cumulative superposition is performed to obtain the random wave results. The results of the present model have been compared with those of previous theoretical studies for both regular and random wave diffraction by single or multiple pits. reasonable agreement was consistently obtained in all cases. In accordance with good agreement from these comparisons, the present numerical model may accurately be utilized to predict the three-dimensional wave field around multiple submarine pits or navigation channels.
A three-dimensional numerical modeling of multidirectional random wave diffraction by rectangular submarine pits
KSCE J Civ Eng
Lee, Hong Sik (Autor:in) / Kim, Sung Duk (Autor:in)
KSCE Journal of Civil Engineering ; 8 ; 357-363
01.07.2004
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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