Title page for etd-0613111-164829


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URN etd-0613111-164829
Author Yan-Hua Chen
Author's Email Address No Public.
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Department Marine Environment and Engineering
Year 2010
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Experimental Study for the Dependence of
Wave-moved Sediment on Grain Size
Date of Defense 2011-05-19
Page Count 92
Keyword
  • Shields number
  • wave-moved
  • bottom slope
  • regular wave
  • sand layer
  • medium diameter
  • Abstract In the study, the thickness of wave moved-sediment layers was measured under regular wave conditions as well as the initial slope of sea bed with grain size of medium diameter 0.237mm and 0.128mm. The initial bottom slope ( tanα) is 1/45, and nineteen wave conditions were studied. For each case, we analyzed the results after about 28800 waves were made.
     Sands are similar density and grain size but different colors. After wave action, the clear boundary between the two layers (two different colors) of sands will be mixed into gray color by wave-induced vortex.According to unmoved-layer(white) and gray-layer to get the total wave-moved sediment quantity.
    Finally, we get the relationship between the wave-moved sediment quantity per wave( q) and two parameters( εb and Θb ) which were established by Liao (2005, doctorate draft). The grain size does not affect εb , and we get the q= 6.486*10^-5*εb . The relationships between  and : 0.110mm gets q=5.103*10^-6Θb , 0.128mm gets q=1.139*10^-5*Θb, and 0.237mm gets q=1.933*10^-5*Θb .
    Advisory Committee
  • Yang-Yih Chen - chair
  • I-Fang Tseng - co-chair
  • Tai-Wen Hsu - co-chair
  • Yung-Fang Chiu - co-chair
  • Chung-Pan Lee - advisor
  • Files
  • etd-0613111-164829.pdf
  • indicate in-campus access in a year and off_campus not accessible
    Date of Submission 2011-06-13

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