Surf-zone dynamics as interacting system of wave, flow, sediment-transport and seabed

作为波浪、水流、沉积物输送和海底相互作用系统的冲浪区动力学

• 批准号: 14205072
• 负责人: SAKAI Tetsuo
• 金额: $ 26.54万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14205072/
• 关键词: surf zone; sediment transport; liquefaction of seabed; DEM; particle method; 波動; 海底地盤; 数値移動床; 並列計算; 砕波・遡上; 可視化

Many of existing models cannot reproduce a complexity of a surf zone, such as a violent behavior of water surface with a fragmentation and a coalescence of water. A sediment transport in a surf zone is full of complexity. There exist a large-scale suspension of sediment due to a plunging breaker, a liquefaction of seabed induced by a change of water pressure due to wave propagation, and so on.In this study, multidirectional approach was done for dynamics of a surf zone as an interacting system of a wave motion, a flow, a sediment transport and a seabed. Primal subjects are as follows : (1) a modeling of a wave, a flow and a sediment transport in a surf zone ; (2) a modeling of liquefaction of seabed and a cavity formation of artificial sand beach ; and (3) application of a developed model to various kinds of hydraulic phenomenon.

许多现有的模型不能再现波浪区的复杂性，如水面的剧烈行为和水的碎裂和融合。冲浪带泥沙运动是一个非常复杂的问题。在波浪运动、水流、泥沙运动和海床相互作用系统中，由于波浪传播引起的水压变化引起的海床液化和泥沙的大规模悬浮等问题，对波浪运动、水流、泥沙运动和海床相互作用的海浪带的动力学问题进行了多方向的研究。主要内容有：(1)波浪、水流和泥沙运动的模拟；(2)海床液化和人工沙滩空洞形成的模拟；(3)发展的模型在各种水力现象中的应用。

项目成果

Influence of Buried-object on Cave-formation Process in Artificial Sand Beach

人工沙滩埋藏物对洞穴形成过程的影响

• 发表时间: 2004
• 期刊: Annual Journal of Coastal Engineering, JSCE Vol.51
• 作者: Sakai;T.;Gotoh;H.;Harada;E.;Hur;Y.T.;Iwamoto;T.
• 通讯作者: T.

Failure Prediction of a Rubble Mound Weir using Distinct Element Method

离散元法对碎石堆堰的失效预测

• 发表时间: 2005
• 期刊: Annual Journal of Hydraulic Engineering Vol.49
• 作者: Maeno;S.;Michioku;K.;Kase;E.;Kikuchi;K.
• 通讯作者: K.

人工海浜砂層内空洞の形成過程に及ぼす埋設物の影響

埋藏物对人工海滩砂层空洞形成过程的影响

• 发表时间: 2004
• 期刊: 海岸工学論文集 第51巻
• 作者: 酒井哲郎;後藤仁志;原田英治;許 怜宅;岩本晃幸
• 通讯作者: 岩本晃幸

VOF-FEM numerical model of submerged breakwater on permeable bottom

透水底水下防波堤的VOF-FEM数值模型

• 发表时间: 2004
• 期刊: Journal of Applied Mechanics Vol.7
• 作者: Bierawski;L.G;Maeno;S.
• 通讯作者: S.

3D Numerical Simulation of Cassion-Side Cave Formation in Artificial Sand Beach

人工沙滩卡西恩边洞形成的3D数值模拟

• 发表时间: 2004
• 期刊: Advances in Hydro-Science and -Engineering, Vol.VI - Proc.6th ICHE, Brisbane, Australia (CD-ROM)
• 作者: Sakai;T.;Gotoh;H.;Harada;E.
• 通讯作者: E.