| URN | etd-0717110-133659 | Statistics | This thesis had been viewed 736 times. Download 9 times. |
| Author | JIAN-HAU CHIOU | ||
| Author's Email Address | prayengi@hotmail.com | ||
| Department | hazards | ||
| Year | 2009 | Semester | 2 |
| Degree | Master | Type of Document | Master's Thesis |
| Language | zh-TW.Big5 Chinese | Page Count | 118 |
| Title | Investigation on the Dissipation of Undulating Obstacle for Irregular Waves | ||
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| Abstract | The reflection coefficient of irregular waves passing through a series of impermeable sinusoidal submerged breakwaters was investigated in this article utilizing hydraulic model test in a wave flume, under the condition of various height and/or width of the breakwater and arranged in different row without intermission, also collocated with various wave conditions i.e. wave height and wave period, the interactions between waves and the submerged obstacles are also recorded and observed by using a CCD digital recorder. The characteristic of the sinusoidal breakwater are therefore analyzed by the reflection coefficient presented by Goda. As it is well known that random wave are composed of varies kinds of component waves, the phenomenon of resonance due to the reflection is generally inconspicuous, yet the influences of the breakwater such as interflow, vortex, wave breaking,¡Ketc are obviously found due to interaction between incident and reflected waves under this circumstance. The experiment result showed that the reflection coefficient increased accompany with the increasing of breakwater in height, the dissipation are mostly due to wave breaking over the obstacle, moreover, energy dissipation are also very active with the alteration in width due to the effects of shoaling, the perturbation of the transmission waves are therefore decreased, which performed well in the role of coastal protection. |
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| Files | indicate access worldwide | ||
| Date of Defense | 2010-07-09 | Date of Submission | 2010-07-17 |