Development of a computational method for hydroelastic multiphase water slamming problems

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K18320
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Naval and maritime engineering
• Research Institution: Kyoto University
• Principal Investigator: Khayyer Abbas 京都大学, 工学研究科, 准教授 (80534263)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: 粒子法 / 流体－構造連成解析（FSI) / hydroelastic slamming / 混相流

Outline of Final Research Achievements

This study aimed at proposing a coupled FSI (Fluid-Structure Interaction) solver for hydroelastic slamming with two major aims of 1) further development of a particle-based multiphase computational code for more precise modeling of entrapped air dynamics in water slamming, 2) accurate coupling of a refined multiphase flow model with a non-linear elastic structure model for precise modeling of hydroelsatic slamming. As for the first aim to avoid use of conventional density averaging schemes, a new scheme, namely, Optimized Particle Shifting (OPS), was proposed and then a multiphase algorithm comprising of this scheme was developed. As for the second aim, significant efforts were devoted to development of fully-Lagrangian meshfree FSI solvers that can precisely model the related non-linear hydroelastic slamming problems. Several fully-Lagrangian meshfree solvers with different coupling schemes were developed with the results being published in four journal papers.

Free Research Field

計算力学