NUMERICAL SIMULATION OF RIPPLE FORMATION PROCESS BY DEM-MPS COUPLING METHOD
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- HARADA Eiji
- 京都大学 社会基盤工学専攻
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- IKARI Hiroyuki
- 京都大学 社会基盤工学専攻
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- GOTOH Hitoshi
- 京都大学 社会基盤工学専攻
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- SHIMIZU Yuma
- 京都大学大学院 社会基盤工学専攻
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- IMURA Mitsutaka
- 京都大学大学院 社会基盤工学専攻
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- MATSUMOTO Masanobu
- 京都大学大学院 社会基盤工学専攻
Bibliographic Information
- Other Title
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- 高精度MPS法とDEMによるサンドリップル形成過程の数値シミュレーション
- コウセイド MPSホウ ト DEM ニ ヨル サンドリップル ケイセイ カテイ ノ スウチ シミュレーション
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Abstract
Investigation of sand ripple forming process on a seabed of inshore area is indispensable to understand the structure of the boundary layer. In addition, the shape of the sand ripple is of significant concern as the roughness of the seabed when the coastal morphodynamics is discussed. However the mechanism of the ripple formation is still not fully revealed. This will be due to the quite difficulty in implementation of measurement or simulation under complex boundary condition by the wave breaking. In this study, the ripple formation process is reproduced by coupling of enhanced MPS method, which is superior to simulate violent free surface flow, and DEM method, which has a distinct advantage of tracking movable bed. Furthermore, the ripple formation process is discussed in terms of the effect of pore flow.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 73 (2), I_511-I_516, 2017
Japan Society of Civil Engineers
