| URN | etd-0715119-134615 | Statistics | This thesis had been viewed 135 times. Download 1 times. |
| Author | WEN-LIN LIN | ||
| Author's Email Address | willie300300@yahoo.com.tw | ||
| Department | Department of construction & spatial design | ||
| Year | 2018 | Semester | 2 |
| Degree | Master | Type of Document | Master's Thesis |
| Language | zh-TW.Big5 Chinese | Page Count | 76 |
| Title | Investigation of flow field visualization of Solitary wave through a Composite Undulating Submerged Breakwater | ||
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| Abstract | The tsunami is usually accompanied by a complex disaster such as an earthquake or flooding. Taiwan situates in Circum-Pacific seismic belt, and there are often earthquakes. The tsunami caused by the earthquake may cause serious disasters in Taiwan.This thesis expected to observe whether the flow field change can be visualized, while solitary wave pass the stepped submerged embankment, and to explore whether the tsunami has the feasibility of dissipating energy. In this experiment, different sizes and groups of wave-shaped submerged embankments are placed in the open channel flow equipment. The tracking particles are sprinkled on the submerged embankment. Both the left and right sides of the sink are fixed with pearl plates to achieve a calm water surface. A sliding track is made on the right side of the sink, and the wave is made down by the cement block.Observe the situation of the particle agitation and the change of the waveform after the wave passes through the submerged embankment. This experiment observes the tracking particle center and radius separately.Analysis of changes in surface waveform and eddy currents, and changes in vortex center and eddy current radius when solitary waves pass through single and series wave-type submerged embankment. In the different configuration of wave-type submerged embankment, the energy dissipation through the solitary waves, as well as reducing the erosion effect on the bottom seabed; the results suggested that the water flow impacts the wave-type wave-type submerged embankment to produce energy-disspation effect, and the tracking particle disperse in the shape of a circular arc. It is expected to look for a good performance of the wave-type submerged embankment to protect the coast and the bottom seabed. |
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| Files | indicate access worldwide | ||
| Date of Defense | 2019-07-02 | Date of Submission | 2019-07-17 |