A numerical simulation on seepage-induced collapse of caisson breakwater using a stabilized ISPH method
نویسندگان
چکیده
The clarification on the collapse mechanism of a caisson breakwater has been an urgent task in order to reduce damages caused by next millennium tsunamis. In this study, piping destruction of a mound induced by seepage flow is taken into consideration solely. A stabilized ISPH method proposed by Asai (2012) is adopted with some modification associated with the extended Darcy law (Akbari 2013, 2014) to simulate both seepage flow and surface-flow phenomenon. The numerical results in piezo water head show quantitative agreement with hydraulic experimental results obtained by Kasama (2013). Furthermore, initiation of the mound collapse behavior can be predicted by the critical hydraulic gradient calculated from our numerical solutions.
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