Numerical Analysis on Liquefaction of Iron Ore Fines under Rolling Motion of Ships Using Microscopic Fluid Coupling Scheme Devised in Discrete Element Method
-
- Shimizu Yoshiyuki
- 東海大学海洋学部
-
- Sugihara Masatoshi
- 東海大学海洋学部
-
- Takeda Katsutoshi
- 一般財団法人 日本海事協会 技術研究所
-
- Tsuruta Wakaba
- 一般財団法人 日本海事協会 技術研究所
-
- Fukui Tsutomu
- 一般財団法人 日本海事協会 技術研究所
Bibliographic Information
- Other Title
-
- 間隙水圧を考慮した粒子―流体連成スキームを組み込んだ個別要素法による船舶動揺時の鉄鉱粉貨物挙動解析
Abstract
<p> A numerical simulation is conducted to investigate movement of iron ore fines by ship's rolling motion under saturated condition using the microscopic fluid coupling scheme devised in the Discrete Element Method. The scheme solves pore water pressure in particle assemblies by change of void spaces and flows between them. Updated pore water pressure is applied to related particles around void spaces. The result shows liquefaction, that is, pore water pressure increases, as rolling motion begins, the effective stress decreases on the other hand. Relative motion between particles increases upper area of the assembly, also particles on surface moves laterally as rolling motion proceeds, such that, the surface tilts from the lateral direction during motion. Further analysis with changing parameters, such as water content is needed for safe carriage of iron ore fines.</p>
Journal
-
- Journal of the Japan Society of Naval Architects and Ocean Engineers
-
Journal of the Japan Society of Naval Architects and Ocean Engineers 35 (0), 87-98, 2022
The Japan Society of Naval Architects and Ocean Engineers
- Tweet
Details 詳細情報について
-
- CRID
- 1390293334799667072
-
- ISSN
- 18811760
- 18803717
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- Crossref
-
- Abstract License Flag
- Disallowed