海洋開発論文集
Online ISSN : 1884-8265
Print ISSN : 0912-7348
ISSN-L : 0912-7348
透水層を用いた任意反射境界処理法の高精度化と遡上計算への適用
平山 克也
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ジャーナル フリー

2006 年 22 巻 p. 241-246

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PLB (Porous Layer Boundary) method was proposed by Hirayama (2001) for a Boussinesq-type wave transformation model in order to calculate partial reflected waves on both breakwaters and revetments covered with armor blocks. The modeling of horizontal distribution of porosity in porous media is improved in this study.
The porosity of improved PLB is estimated by integrating vertical distribution of porosity from sea bottom to water surface, which consists of armor block layer and water layer. This modeling is similar to the definition proposed by Madsen et. al. (1997) or Kennedy et. al. (2000), therefore the newly proposed PLB method can also calculate moving shoreline as the porosity of armor block layer is very small. The calculated reflection coefficients at sea wall covered with armor blocks agree with the results of model experiment very much.

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© 社団法人 土木学会
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