Experimental study on the energy dissipation due to the composite porous structures
碩士 === 國立臺灣海洋大學 === 河海工程學系 === 93 === The purpose of this study is to investigate incident wave energy dissipation due to the combinations of porosity, width of porous wall and floating structure in a harbor due to the porous wall and dock. In this study, a series of experiments were conducted to ex...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Others |
Language: | zh-TW |
Published: |
2006
|
Online Access: | http://ndltd.ncl.edu.tw/handle/55848407096456052180 |
id |
ndltd-TW-093NTOU5192095 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-TW-093NTOU51920952016-06-01T04:25:07Z http://ndltd.ncl.edu.tw/handle/55848407096456052180 Experimental study on the energy dissipation due to the composite porous structures 複合式多孔隙結構物之消波特性探討 Chien-Ming Lin 林建明 碩士 國立臺灣海洋大學 河海工程學系 93 The purpose of this study is to investigate incident wave energy dissipation due to the combinations of porosity, width of porous wall and floating structure in a harbor due to the porous wall and dock. In this study, a series of experiments were conducted to examine the effect of the wave energy dissipation with different incident waves due to the composite porous structure. The results show that the composite porous structure with porosity equals to 0.6 has more effect on energy dissipation for a fixed width of porous wall and floating structure, while the non-dimensional frequency less than 1.0. For a fixed porosity of porous wall and width of floating structure, B/h=0.95 is more effective on energy dissipation as the non-dimensional frequency less than 1.0. An opposite trend can be found when non-dimensional frequency is more than 1.0. The non- dimensional width of floating structure D/h=0.95 has more effect on wave energy dissipation, with the fixed porosity and width of porous wall. For the long period wave, reflection coefficient decreases when the effective depth decreases, with the fixed porosity and width of porous wall and width of floating structure. It also finds that the composite porous structure with porosity n1=0.6, the non- dimensional width of dock B/h=0.95 and the non- dimensional width of floating structure D/h=0.95, can reduce 90% wave energy. Sung-Shan Hsiao 蕭松山 2006 學位論文 ; thesis 92 zh-TW |
collection |
NDLTD |
language |
zh-TW |
format |
Others
|
sources |
NDLTD |
description |
碩士 === 國立臺灣海洋大學 === 河海工程學系 === 93 === The purpose of this study is to investigate incident wave energy dissipation due to the combinations of porosity, width of porous wall and floating structure in a harbor due to the porous wall and dock. In this study, a series of experiments were conducted to examine the effect of the wave energy dissipation with different incident waves due to the composite porous structure. The results show that the composite porous structure with porosity equals to 0.6 has more effect on energy dissipation for a fixed width of porous wall and floating structure, while the non-dimensional frequency less than 1.0. For a fixed porosity of porous wall and width of floating structure, B/h=0.95 is more effective on energy dissipation as the non-dimensional frequency less than 1.0. An opposite trend can be found when non-dimensional frequency is more than 1.0. The non- dimensional width of floating structure D/h=0.95 has more effect on wave energy dissipation, with the fixed porosity and width of porous wall. For the long period wave, reflection coefficient decreases when the effective depth decreases, with the fixed porosity and width of porous wall and width of floating structure. It also finds that the composite porous structure with porosity n1=0.6, the non- dimensional width of dock B/h=0.95 and the non- dimensional width of floating structure D/h=0.95, can reduce 90% wave energy.
|
author2 |
Sung-Shan Hsiao |
author_facet |
Sung-Shan Hsiao Chien-Ming Lin 林建明 |
author |
Chien-Ming Lin 林建明 |
spellingShingle |
Chien-Ming Lin 林建明 Experimental study on the energy dissipation due to the composite porous structures |
author_sort |
Chien-Ming Lin |
title |
Experimental study on the energy dissipation due to the composite porous structures |
title_short |
Experimental study on the energy dissipation due to the composite porous structures |
title_full |
Experimental study on the energy dissipation due to the composite porous structures |
title_fullStr |
Experimental study on the energy dissipation due to the composite porous structures |
title_full_unstemmed |
Experimental study on the energy dissipation due to the composite porous structures |
title_sort |
experimental study on the energy dissipation due to the composite porous structures |
publishDate |
2006 |
url |
http://ndltd.ncl.edu.tw/handle/55848407096456052180 |
work_keys_str_mv |
AT chienminglin experimentalstudyontheenergydissipationduetothecompositeporousstructures AT línjiànmíng experimentalstudyontheenergydissipationduetothecompositeporousstructures AT chienminglin fùhéshìduōkǒngxìjiégòuwùzhīxiāobōtèxìngtàntǎo AT línjiànmíng fùhéshìduōkǒngxìjiégòuwùzhīxiāobōtèxìngtàntǎo |
_version_ |
1718291088930766848 |