1)sediment model泥沙模型
1.The similarity criteria for designing the sediment models for plain sand-bed rivers include similarity of flow,bed load and suspended load.认为平原细沙河流的泥沙模型设计所遵循的相似准则应包括水流运动相似、推移质运动相似和悬移质运动相似。
2.By similartiy theory,the grain-size scale of sediment model is analyzed and similarity conditions between grain sizes if bed load,suspended load and model sand are presented.运用相似理论对泥沙模型的粒径比尺进行了分析,提出了推移质、悬移质和全沙模型泥沙粒径相似条件;给出了包括细沙在内的泥沙起动粒径比尺的统一计算式和适用不同流区的悬沙粒径比尺的统一计算式;指出模型砂的起动流速不等于模型的起动流速,需进行比尺效应修正。
英文短句/例句
1.An Experiment of Sediment Model for Diluo Hydropower Station in the Xixi River;西溪河地洛水电站泥沙模型试验研究
2.Experimental Research on Sediment Model of Burma Shweli Hydropower Station缅甸瑞丽江水电站泥沙模型试验研究
3.Study on turbulence and resistance similarity of distorted river models with sediment transport and movable bed变态动床泥沙模型紊动相似和阻力相似研究
4.A Study on 2D Flow and Sediment Mathematical Model on Wuhan River Flow武汉河段河道平面二维泥沙模型的研究
5.The Research and Application of Mathematical Sedimentation Model for DuLiuJianhe River Estuary;独流减河口泥沙数学模型研究及应用
6.Development of Mathematical Model for Unsteady Sediment Transport of the Lower Weihe River;渭河下游非恒定流泥沙数学模型研究
7.Numerical simulation for sediment transport in the river network between Jingjiang River and Dongting Lake荆江-洞庭湖河网泥沙数学模型研究
8.One Dimensional Model of Reservoir Sedimentation and Its Application in Calculation for Water Intake of a Power Plant白沙水库—维泥沙数学模型及电厂取水方案计算
9.FINITE ELEMENT METHOD FOR TWO-DIMENSIONAL MATHEM-ATIC MODEL IN RIVER FLOW AND SEDIMENT TRANSPORT平面二维水流泥沙数学模型有限元分析
10.Two-D Simulation of Sediment Transport and Bed Deformation by Tides潮汐水流泥沙输移与河床变形的二维数学模型
11.The 2-D tidal current and sediment mathematical model for Feiyunjiang estuary is established.建立了飞云江口二维潮流泥沙数学模型。
12.Research on Application of 3D Hydrodynamic, Sediment Transport Model with Non-Staggered Curvilinear Grid for Tidal Rivers;感潮河道三维水流泥沙数值模型研究与应用
13.2D Numerical Model of Multi-fraction Fine Sediment Transport;多组分细颗粒泥沙输送的二维数值模型
14.Study on 2-D Mathematical Model of Tidal Flow and Sediment in JiaoJiang Estuary;椒江口二维潮流泥沙数学模型研究及其应用
15.Research on 3D Numerical Modeling of Sediment Movement under Waves and Currents;波、流共同作用下三维泥沙运动数值模型研究
16.Sediment and Temperature-Salinity Mathematical Model Applied in Beibu Gulf;泥沙及温盐数学模型在北部湾海域的应用
17.The Observations and Models of Bottom Boundary Layer for Fine Sediment;细颗粒泥沙近底边界层观测和模型研究
18.Bed Load Movement Theoretical Model and the Movement Process Calculation推移质泥沙运动理论模型及运动过程计算
相关短句/例句
sediment mathematical model泥沙数学模型
1.On the basis stated above the sediment concentration distribution is simulated by the sediment mathematical model.采用平面二维潮流数学模型,对象山湾港区规划方案实施前后的流场进行了数值模拟,并在此基础上运用泥沙数学模型模拟该区域含沙量场的分布,进而对规划方案泥沙淤积情况进行分析。
2.Based on the combined hydraulic calculation for the eastern network region at the Pearl River estuary and several outlets to the Lingdingyang Bay, the sediment calculation modelling was introduced in the establishment of the sediment mathematical model for Lingdingyang Bay and the eastern region with one and two dimensional flow calculation.基于珠江口东片网河与伶仃洋多口门衔接水力计算结果 ,提出泥沙计算模型 ,建立了珠江口东片网河与伶仃洋一、二维衔接泥沙数学模型 。
3.The2-D flow and sediment mathematical model is used to compute the effect of the engineering of riverside embankment change.采用平面二维水流泥沙数学模型进行堤线改线影响计算,模型考虑了悬移质及推移质泥沙运动、桥渡及料场的阻力变化。
3)model of bed load推移质泥沙模型
4)sectional sedimentation model断面泥沙模型
5)fixed-bed sediment model定床泥沙模型
1.From fixed-bed sediment model test, investigation has been done for the sedimentation in the harbor base for two options of overall planning and three options of the first phase work of the Yangshan Harbor area.通过定床泥沙模型试验,研究洋山港区总体规划两种方案和一期工程三种方案的工程实施后港池泥沙淤积情况,以及外航道浚深段年平均淤积强度和维护挖泥数量。
6)Physical model for reservoir水库泥沙模型
延伸阅读
泥沙模型试验泥沙模型试验incipient velocity of sediment n一shoq一dongl一usu泥沙起动流速(ineipient velocity of sedi-ment)使河床上的泥沙顺粒脱离静止状态开始运动的临界水流速度。床面沙粒受到的作用力主要有水流的上举力和推移力，保持沙粒稳定的有沙粒的自重和沙粒之间的粘结力。当水流作用力超过重力和粘结力时，沙粒开始运动。由于沙粒的大小、形状和所处的位置不同，且水流作用力具有脉动性质，因此沙粒起动存在着随机性，缺乏严格的起动界线，造成目前众多起动流速公式有较大差异。对于非猫性的粗顺粒，重力是抗拒起动的主要力量，对于猫性细顺粒枯结力则是抗拒起动的主要力量。因此，起动流速公式必须考虑两者的综合影响。下列公式具有代表性u。一{奥)。“{，7 .6久井J十。.。。。。。。605 \口，\，10+hdo·72式中“。为起动流速，m/s;h为水深，m;d为泥沙粒径，mm，ya，y分别为泥沙及水的重率，kg/m3。上式括号中的第一项反映重力的作用，第二项反映粘结力的作用.当粒径较大时(d>2 mm)，括号中的第二项接近于零，起动流速随d的增大而增大。当d<0.02mm时，括号中的第一项可忽略不计，而随着d的减小，因粘结力的增加使“。也增加。许多试验资料表明:在水深等于0.巧m的情况下，最低的起动流速发生在粒径约为0.15~0.20 mm范围内，大于或小于此粒径的泥沙，起动流速都要增加。见图。山二15Cm绷100 4010之盯。。.重璧喜营二二一’”‘鼎虽 考虑顺粒间貂结性后所得到的 起动流速与粒径间的关系 ，考书目 武汉水利电力学院河流泥沙工程学教研室.河流泥沙工程学.北京:水利出版社，1981
