Development of analysis methods for fluid-structure interaction by combining particle methods and finite element methods

2016 Fiscal Year Final Research Report

• Project/Area Number: 26630454
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Naval and maritime engineering
• Research Institution: Kobe University
• Principal Investigator: Hashimoto Hirotada 神戸大学, 海事科学研究科, 准教授 (30397731)
• Co-Investigator(Renkei-kenkyūsha): KAWAMURA Kouki 海上・港湾・航空技術研究所, 海上技術安全研究所, 研究員 (80757724)
• Research Collaborator: MATSUDA Akihiko 水産研究・教育機構, 水産工学研究所, グループ長 ; TERADA Daisuke 水産研究・教育機構, 水産工学研究所, 主任研究員 ; OSABE Natsumi 神戸大学, 海事科学部, 学生
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 流体・構造連成 / 粒子法 / 有限要素法 / SPH / 陽的MPS / GPGPU / 一方向連成 / 強制動揺試験

Outline of Final Research Achievements

In order to solve interaction between strongly nonlinear free-surface flows and structural dynamic responses, a numerical analysis method for fluid-structure interaction was developed by combining mesh-less particle methods and mesh-based finite element methods. The SPH method and the explicit MPS method which are adequate for large-scale simulation were adopted as the fluid solver, and a GPGPU code of each was used. As the FEM solver to be coupled with these particle methods, an open source “libMesh” which is capable for unsteady structural analysis was adopted. Although it is one way coupling, the fact that we could realize a fluid-structure coupled simulation by combining a large-scale particle method, which is applicable to realistic engineering problems, and FEM, would contribute to the future development of fluid-structure interaction analysis.

Free Research Field

船舶海洋工学