TY - JOUR
T1 - VOF-DEM-FEM combined model of the reef breakwater collapse
AU - Maeno, Shiro
AU - Bierawski, Lechoslaw G.
AU - Magda, Waldemar
AU - Ogawa, Makoto
N1 - Funding Information:
This study was partly supported by a Grant-in-Aid for Scientific Project No. 17560461, Chief: Shiro Maeno, Japan Society for the Science.
PY - 2009/9
Y1 - 2009/9
N2 - A combined model was built of three main modules based on the Volume of Fluid (VOF) method, Discrete Element Method (DEM), and Finite Element Method (FEM). It was proposed to utilize this model to simulate the deformation of the rubble mound and the sandy bed due to surface wave action. The model included the full interaction between wave motion with free surface and replaceable separate particles of the rubble mound. Momentary arrangement of the fluid, particles and resulting permeability was tracked within a domain of time and two-dimensional space by maintaining cyclic data transfer between the three method modules. A new technique of porosity adjustment was presented. The model results were compared to small-scale laboratory test results. Based on the comparison, the VOF-DEM-FEM model appeared to be a promising tool to handle the destruction process of the rubble coastal structures built on a permeable bottom.
AB - A combined model was built of three main modules based on the Volume of Fluid (VOF) method, Discrete Element Method (DEM), and Finite Element Method (FEM). It was proposed to utilize this model to simulate the deformation of the rubble mound and the sandy bed due to surface wave action. The model included the full interaction between wave motion with free surface and replaceable separate particles of the rubble mound. Momentary arrangement of the fluid, particles and resulting permeability was tracked within a domain of time and two-dimensional space by maintaining cyclic data transfer between the three method modules. A new technique of porosity adjustment was presented. The model results were compared to small-scale laboratory test results. Based on the comparison, the VOF-DEM-FEM model appeared to be a promising tool to handle the destruction process of the rubble coastal structures built on a permeable bottom.
KW - Combined numerical model
KW - DEM
KW - Destructive numerical model
KW - FEM
KW - Submerged breakwater
KW - VOF
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U2 - 10.1142/S057856340900203X
DO - 10.1142/S057856340900203X
M3 - Article
AN - SCOPUS:69649092000
SN - 2166-4250
VL - 51
SP - 223
EP - 242
JO - Coastal Engineering Journal
JF - Coastal Engineering Journal
IS - 3
ER -