滩槽 meaning in English
furrow
trough
Examples
- Being utilized in the wave propagation for nan gang of yangtze river estuary , this model can give good results of numerical simulation by effectively reflecting the influence of complicated topography which is comprised of shoal - channel spaced in between
将模型应用于地形复杂变化的长江口南港水域内波浪场的计算，计算结果说明，模型能较好地反映滩槽相间、急剧变化的地形的影响。 - In this paper , some characteristics of flow movement and sediment transport are analyzed by using the flume experiment data . the cross section of compound channel can be divided into four regions : the undisturbed region in main channel , the interactive region between channel and plain , the undisturbed region in flood plain and the boundary region . in the undisturbed regions , the distribution of longitudinal velocity along the depth has the feature of lograithmic . whereas , in the interactive region , the longitudinal velocity does not obey the logarithmic distribution law , but it can expressed as a revised logarithmic function by using a wake function . on the basis of the kinematic equation the velocity distribution of transverse velocity is obtained . in the boundary region , the longitudinal velocity obeys the law of parabolic distribution . furthermore , according to the simplified diffusion equation , the transverse distribution of sediment concentration in the interactive region is deduced . the analysis is in good agreement with the measured data
本文根据漫滩水流的运动特点，将漫滩水流的复式断面分为主槽平衡区、滩槽交互区、滩地平衡区及边壁区等4个区，并给出了各区宽度的经验公式.根据滩槽交互区垂线流速分布的变化特点，提出了附加尾流函数的对数流速分布公式.在简化水流运动方程和泥沙扩散方程的基础上，对滩槽交互区内垂线平均流速及含沙量沿横向分布进行了理论分析，提出了反映滩槽水流动量交换强度的横向涡量粘性系数及横向扩散系数的表达式，得到了漫滩水流垂线平均流速及含沙量沿横向分布的解析解，并与实测资料吻合较好 - Abstract : variations of flow pattern , flow velocity in deep poo l and side bar , mainstream thread , and water surface , caused by excavation project , are investigated by two - dimensional mathematical model in an orthogonal curvili near coordinate system . the change of bed - load transport rate , and redeposition r ate are predicted . the influences of the excavation project on navigation are ana lyzed . grid - type and flat - type excavation alternatives are proposed and discuss ed
文摘:采用正交曲线坐标系下的河道平面二维数学模型，研究了嘉陵江何家碛边滩采砂后河道流势、流态、滩槽流速、主流位置、水面高程及比降的变化规律，预测了采砂方案完成后卵石推移质输沙率变化及其对航道的影响，并对格形开挖和平整开挖方案进行了比较分析 - In this paper , the deposition evolution process in qtx reservoir are studied , the incoming water and sediment , the operation data , and the time and space distribution of longitudinal and lateral sedimentation in reservoir are analyzed in detail , and the longitudinal scouring and sedimentation and lateral deformation law in reservoir tidal flat and mainstream under different operation way are summarized in every operation period
本文以黄河青铜峡水利水电枢纽工程水库淤积演变过程为研究对象，对青铜峡水库来水来沙组成、水库运行资料、水库纵横向泥沙淤积时空分布等进行了较详细的分析，总结了青铜峡水库各个运行时期不同运行方式下水库滩槽纵向冲淤和横向变形规律。 - 3 . a three - dimensional - acoustic doppler velocimeter has been used to measure the velocity and turbulence in a compound channel with vegetated and unvegetated flood - plains . particulary in the interface region between main channel and floodplain . the distribution in three coordinate directions of velocity and turbulence intensities and the renolds stresses are presented . the momentum transfer at the main channel flood - plain interface can be described as an apparent shear stress which can be quantified as a function of the local turbulence at the interface
采用adv对滩地种树前后滩槽交界区域的流速场进行了量测。分析了滩槽交界区域的垂线流速、紊动强度和雷诺应力的变化。将滩槽交界的动量传递描述为一表观应力，这个表观应力可以看作是交界面处的脉动函数并将其定量化。