土木学会論文集B2(海岸工学)
Online ISSN : 1883-8944
Print ISSN : 1884-2399
論文
MPS法高次Laplacianモデルの改良と鉛直噴流による洗掘過程の数値解析
五十里 洋行後藤 仁志吉永 健二反保 朋也
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2014 年 70 巻 2 号 p. I_36-I_40

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A rubble mound or subjacent sand ground of a composite breakwater can be scoured by a tsunami overtopping. Hence, it is indispensable to examine a scouring due to overtopping water for making a damage prediction of composite breakwater. Although a particle method is suitable for simulating this scouring process, small conductivity in a sand layer at sea bottom can bring a numerical instability in an interaction term between fluid and sand. Therefore, in this study, the higher order Laplacian model has been improved for a more stable calculation, and the applicability of the model is examined through a numerical test on scouring process due to submerged impinging jet.

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