On the basis of previous investigations of the sand aeolian ripples, cellular automata theory and recent studies on dynamics of two-phase wind-sand fluid flow, this paper presents some improvements and modifications on the existing numerical simulation of sand aeolian ripples, and discusses its stability as well.
本学位论文在总结前人关于风成沙波纹研究的基础上,以元胞自动机原理为出发点,根据风沙两相流体运动的近期研究成果,对现有风成沙波纹的数值模拟进行了修正和改进,并对其稳定性进行了理论分析,主要研究工作包括如下四个方面:1。
Research on Comprehensive Evaluation of Waterfront Landscape of Chengdu's Sha River
成都沙河滨水空间景观综合评价研究
It offers instructions to reasonable configuration of water resource in cities.
以成都市沙河为计算实例，计算了其生态需水量，为城市河流水资源的合理配置提供了依据。
The bank was formed by the mud and sand deposited here over a long period of time.
河里的泥沙淤积在这里, 年深日久便成了沙洲。
The bar was formed by the mud and sand deposited here over a long period of time.
河里的泥沙淤积在这里,年深日久便成了沙洲。
FLUME EXPERIMENT ON FORMATION AND DEVELOPMENT OF SANDBODIES IN LAKE WITH SANDBEARING VARIETY OF RIVER
含沙河流入湖后沙体形成、发展的水槽实验
Sediment Transport Characteristics of Hyperconcentration Flood of the Yellow River and its Bed Formation
黄河高含沙量洪水的输移特性及其河床形成
Disease Cause and Reinforcing of Sha River Bridge in Taishan Road of Luhe City
漯河市泰山路沙河大桥病害成因及加固
Optimum allocation of land and water in the typical sand regions around Beijing: a case study in Huailai County;
首都圈防沙治沙典型区水土资源优化配置——以河北省怀来县为例
Channel deposits, consisting of sand, silt and clay, fill the valleys cut by a river system.
河道沉积由砂，粉沙和粘土组成，充填于河流切割的河谷之中。
The sand originates largely from neighboring Hebei province where 15% of the land has turned into desert.
沙尘暴主要从邻近的河北省形成，该地区15%的土地已经变成沙漠。
Heavy rains led to flooding in Kinshasa, Congo.
豪雨导致刚果首都金夏沙泛滥成灾。
The Studies on the Vertebrates and Paleoenvironment in Jinsha Site, Chengdu;
成都金沙遗址脊椎动物及古环境研究
Trial Excavation on the Longshan Period Site at Jinsha Village in the Western Suburb of Chengdu City;
成都市西郊金沙村龙山时代遗址试掘
A ridge, as of sand or gravel, on a shore or streambed, that is formed by the action of tides or currents.
沙洲，沙滩在海边，河床等处由沙子或小石子形成的隆起，由潮水或水流运动而形成
Sidelights on the first successful experiment with water and silt regulation at the Xiaolangdi key water-control project on the Yellow River
黄河小浪底首次成功调水调沙试验侧记
DIAGENESIS OF SHAHEJIE FORMATION OF THE PALAEOGENE IN THE EASTERN CHEZHEN DEPRESSION OF SHANDONG PROVINCE
山东车镇凹陷东部古近系沙河街组成岩作用
Formation and Law of Evolution Processes of the Jiuduansha Shoal of the Changjiang Estuary;
长江河口九段沙形成发展及演化规律研究
Diagnostic Analysis and Cause Study of Heavy Rainfall Events over Shali River Area;
沙澧河流域大暴雨的诊断分析与成因研究