云南高校图书馆联盟文献共享服务平台- 国家自然科学基金(51021004)

国家自然科学基金(51021004): 作品数：56被引量：305H指数：7; 导出分析报告; 相关作者：余建星钟登华王志超李大鸣周清基更多>>; 相关机构：天津大学堪萨斯大学科罗拉多州立大学江西省水利科学研究院更多>>; 相关期刊：《Journal of Ocean University of China》《International Journal of Sediment Research》《岩土工程学报》《河海大学学报（自然科学版）》更多>>; 相关主题：CHANNELRIVERSPHBASED_ONTHREE-DIMENSIONAL更多>>; 相关领域：水利工程交通运输工程自动化与计算机技术天文地球更多>>

宽肩台防波堤稳定性数值模拟方法研究被引量：1: 《海洋通报》2020年第6期740-749,共10页李彦卿别社安; 国家自然科学基金(51021004,51079095)。; 宽肩台堆石堤是海岸工程中的一种海堤形式,其以结构简单、施工快捷、布局灵活和造价经济的特点在工程中得到了广泛应用。宽肩台防波堤以堆积块石为主体,在海区波浪作用下达到稳定的堆积结构。进行宽肩台式防波堤稳定性的研究是设计宽肩...; 关键词：宽肩台防波堤光滑粒子动力学方法(SPH) 块石单元法(GEM) 耦合数值模型稳定性模拟

基于SPH-DEM流-固耦合算法的滑坡涌浪模拟被引量：24: 《岩土力学》2017年第4期1226-1232,共7页王志超李大鸣; 国家自然科学基金(No.51079095;No.51369011);国家自然科学基金创新研究群体学基金(No.51021004)~~; 采用光滑粒子流体动力学(SPH)方法和离散单元法(DEM),并基于达西渗透试验原理,提出一种SPH-DEM耦合算法用于处理宏观尺度下离散体与流体之间的相互作用问题,并基于该流-固耦合方法采用FORTRAN语言建立滑坡涌浪数学模型。模拟了块体滑坡...; 关键词：光滑粒子流体动力学离散单元法流-固耦合滑坡涌浪

驾驭式洪水演进模型在蓄滞洪区联合防洪中的研究与应用被引量：3: 《天津大学学报（自然科学与工程技术版）》2016年第10期1084-1092,共9页李大鸣王志超李杨杨王笑张建中刘江侠; 国家自然科学基金创新研究群体基金资助项目(51021004);河北省水利科研计划资助项目(HS2007-43); 基于一、二维非恒定流基本控制方程,建立了蓄滞洪区洪水演进数学模型.模型采用具有旁侧出流的河网独立计算的一、二维多口门嵌套衔接模式,将一维河道嵌套于二维分洪区中.通过混合编译方法实现了该模型的可视化驾驭功能.介绍了驾驭式模...; 关键词：驾驭式洪水演进蓄滞洪区联合调度

Quantitative, SEM-based shape analysis of sediment particles in the Yellow River被引量：3: 《International Journal of Sediment Research》2016年第4期341-350,共10页Daming Li Yangyang Li Zhichao Wang Xiao Wang Yanqing Li; supported in part by National Natural Science Foundation of China(Grant No.51079095);the Science Fund for Creative Research Groups of the National Natural Science Foundation of China(Grant No.51021004); The shape of a sediment particle can reveal part of the particle＇s transportation history and is a significant variable in sediment transport mechanics. Measuring sediment shapes is a difficult and time-consuming tas...; 关键词：Hydraulics Sediment transport mechanics Sediment particle shape analysis SEM image Yellow River

Wave Pressure Acting on V-Shaped Floating Breakwater in Random Seas: 《Journal of Ocean University of China》2015年第6期975-981,共7页YU Yang DING Ning LIN Jie HOU Jiajia; supported by the Science Fund for Creative Research Groups of the National Natural Science Foundation of China(Grant no.51021004);the Research Fund of State Key Laboratory in Ocean Engineering of Shanghai Jiaotong University(Grant no.1104);the Scientific Research Foundation of Civil Aviation University of China(Grant no.09QD08X); Wave pressure on the wet surface of a V-shaped floating breakwater in random seas is investigated. Considering the diffraction effect, the unit velocity potential caused by the single regular waves around the breakwat...; 关键词：RANDOM SEAS V-SHAPED FLOATING BREAKWATER wave pressure boundary element method spectrum analysis

联合泄洪下跌坎消力池底板脉动压强试验研究被引量：2: 《水利水电技术》2015年第9期95-99,共5页董天松杨敏李会平; 国家自然科学基金项目(51179119);国家自然科学基金创新研究群体科学基(51021004); 基于某工程模型试验,对跌坎底流消能工消力池在表孔和中孔不同运用方式下脉动压强大小及分布特性进行研究。试验结果表明:开孔方式不同对底板脉动压强影响差别很大,首先脉动压强峰值在底板所处位置表现各不相同,其次脉动压强系数沿底板...; 关键词：水利水电工程跌坎底流消能脉动压强联合泄洪模型试验

Theoretical analyses on hydrodynamic instability in narrow deep river with variable curvature被引量：4: 《Applied Mathematics and Mechanics(English Edition)》2015年第9期1147-1168,共22页Haijue XU Yuchuan BAI; Project supported by the National Natural Science Foundation of China(Nos.51279124 and 50979066);the Science Fund for Creative Research Groups of the National Natural Science Foundation of China(No.51021004); Bending river is the most common river type in nature, and it is also a typical example for river evolution. The transform of the flow pattern can affect the development of the riverbed form. In return, the variation ...; 关键词：bending river hydrodynamic stability self-adaptability nonlinear riverdynamics

3D Simulation of Flow with Free Surface Based on Adaptive Octree Mesh System被引量：1: 《Transactions of Tianjin University》2015年第1期32-40,共9页李绍武庄茜黄筱云王东; Supported by the National Natural Science Foundation of China(No.51379143 and No.51109018);the Foundation for Innovative Research Groups of the National Natural Science Foundation of China(No.51021004);the Open Foundation of Key Laboratory of Water-Sediment Science and Water Disaster Prevention of Hunan Province(No.2014SS01);the Open Foundation of State Key Laboratory of Hydraulic Engineering Simulation and Safety(No.HSSKLTJU-201208); The technique of adaptive tree mesh is an effective way to reduce computational cost through automatic adjustment of cell size according to necessity. In the present study, the 2D numerical N-S solver based on the ada...; 关键词：adaptive octree mesh 3D numerical flume spatially adaptive multiple particle level set

Parametric Instability Analysis of Deepwater Top-Tensioned Risers Considering Variable Tension Along the Length被引量：1: 《Journal of Ocean University of China》2015年第1期59-64,共6页ZHANG Jie TANG Yougang; supported by the National Natural Science Foundation of China (51239008, 51279130, 51079097);Science Fund for Creative Research Groups of the National Natural Science Foundation of China (51021004); Parametric instability of a riser is caused by fluctuation of its tension in time due to the heave motion of floating platform. Many studies have tackled the problem of parametric instability of a riser with constant ...; 关键词：deepwater risers parametric instability variable tension mode coupling

Flow pattern analysis of linear gradient flow distribution被引量：1: 《Applied Mathematics and Mechanics(English Edition)》2015年第1期81-106,共26页Da-ming LI Xiao-yu LI Yan-qing LI R.J.FARAHANI; Project supported by the National Natural Science foundation of China(No.51079095);the Science Fund for Creative Research Groups of the National Natural Science Foundation of China(No.51021004); This paper uses the Oseen transformation to solve the differential equations governing motion of the vertical linear gradient flow distribution close to a wall surface. The Navier-Stokes equations are used to consider...; 关键词：linear gradient distribution flow contour integral stability analysis Airyfunction Oseen transformation

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