Study on the numerical wave flume with multi-scaling technique for violent multiphase free-surface flows

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K18129
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Hydraulic engineering
• Research Institution: National Institute of Maritime, Port and Aviation Technology (2016); Port and Airport Research Institute (2015)
• Principal Investigator: Tsuruta Naoki 国立研究開発法人海上・港湾・航空技術研究所, 港湾空港技術研究所, 研究官 (30747861)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 粒子法 / 固液混相流モデル / 境界条件 / 高精度粒子法 / 解像度可変 / DEM / MPS

Outline of Final Research Achievements

For effective design of breakwaters against huge tsunamis, complicated damage process, e.g. sliding of a caisson, scouring of the mound, drifting of blocks should be considered comprehensively. The numerical wave flume is expected to approach this challenging issue, however, this kind of phenomenon comprises prudent scaling effects under the violent flows, and as a result, it is difficult to treat them with a practical computational cost. In this study, improved boundary models are introduced into the so-called accurate particle method in order to resolve this problem. The proposed model includes DEM-MPS coupling model and a multi-resolution scheme so as to develop the comprehensive, accurate and stable framework for violent solid-liquid multiphase flows.

Free Research Field

海岸工学