Construction of mathematical model and simulation technique for oil pollution problems

石油污染问题数学模型构建及仿真技术

• 批准号: 14550056
• 负责人: SUITO Hiroshi
• 金额: $ 1.09万
• 依托单位: OKAYAMA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550056/
• 关键词: Numerical simulation; Non-Newtonian fluid; Computational fluid dynamics; Oil spill accident; 数理モデル; 流出原油; 数値解析; 多孔性媒質; 分散剤

This research project intended to construct a mathematical model and computational techniques to investigate drifting, adhesion and infiltration processes of spilled oil in a surfzone. Generally speaking, heavy oil C can be treated as a Newtonian fluid in a normal situation. However, if it spilled out into the sea, it constitutes an emulsion as a consequence of mixing with seawater and/or volatilization of its smaller molecular weight components. Finally, it reaches a state resembling mousse floating on the sea surface. Governing equations for computing motions for both Newtonian and non-Newtonian fluids and interfacial interactions on the boundary surface are unified to construct a numerical model. In this unified model, surface tension acting on free surfaces of oil in sandy beach is included in the form of distribution defined on the interface. By controlling the magnitude of the surface tension term in the unified equation, it becomes possible to compute the infiltration depth of spilled oil into sandy beach.

本研究项目旨在建立一个数学模型和计算技术来研究溢油在冲浪区内的漂移、附着和渗透过程。一般来说，在正常情况下，稠油C可以被视为牛顿流体。然而，如果它泄漏到海洋中，它就会与海水混合和/或挥发其较小分子量组分，从而形成乳状液。最后，它达到了一种类似于漂浮在海面上的慕斯的状态。统一了计算牛顿流体和非牛顿流体运动及界面相互作用的控制方程，建立了数值模型。在这个统一的模型中，作用在沙滩油自由表面上的表面张力以界面上定义的分布形式包含在内。通过控制统一方程中的表面张力项的大小，可以计算溢油进入沙滩的渗透深度。

项目成果

Effect of Spilled Oil on Coastal Ecosystems

溢油对沿海生态系统的影响

• 发表时间: 2002
• 期刊: Proceedings of Fifth China-Japan Seminar on Numerical Mathematics
• 作者: H.Kawarada;E.Baba;H.Suito
• 通讯作者: H.Suito

Numerical Simulation of Oil Pollution Problem

油污染问题的数值模拟

• 发表时间: 2004
• 期刊: Proceedings of the conference on Computational Engineering and Science, The Japan Society for Computational Engineering and Science Vol 9, No. 1
• 作者: H.Suito;T.Arakawa;H.Kawarada
• 通讯作者: H.Kawarada

Baba, Kawarada, Nishijima, Okada, Suito: "Waves and Tidal Flat Ecosystems"Springer-Verlag, Berlin, Heidelberg, New York. 164 (2003)

Baba、Kawarada、Nishijima、Okada、Suito：“波浪和潮滩生态系统”Springer-Verlag，柏林、海德堡、纽约。

流出原油による沿岸汚染の数値シミュレーション

原油泄漏造成沿海污染的数值模拟

• 发表时间: 2004
• 期刊: 計算工学講演会論文集 Vol.9,No.1
• 作者: 水藤寛;荒川貴信;河原田秀夫
• 通讯作者: 河原田秀夫

Waves and Tidal Flat Ecosystems

波浪和滩涂生态系统

• 发表时间: 2003
• 作者: E.Baba;H.Kawarada;W.Nishijima;M.Okada;H.Suito
• 通讯作者: H.Suito