非恒定流

基于GIS的平原河网非恒定流计算模型

GIS-based unsteady flow calculation model for plain river networks

运用矩阵标识法求解节点水位方程，并结合地理信息系统（GIS）技术建立的平原河网非恒定流计算模型，具有节省河网基础资料的前处理和提高计算工作效率的特点。

By using the matrix mark method to calculate the node-stage equation and GIS techniques , an unsteady flow calculation model for plain river networks is developed . The model can save pre-treatment works of network ′ s basic data and improve calculation efficiency .

基于PIV技术的明渠非恒定流试验系统

Experimental System for Unsteady Flows of Open-Channel Based on PIV Technology

二维明渠非恒定流的格子Boltzmann模拟

2-D open channel flow simulations by the lattice Boltzmann model

若定义均匀流垂线流速分布为A型，则非恒定流或恒定非均匀流垂线流速分布一般为B型和C型。

If vertical velocity distribution of uniform flow is defined as Type A , vertical velocity distribution of the unsteady flow or steady non uniform flow is generally Type B and Type C.

本文采用特征线法在电子计算机上应用FORTRAN语言对有压管中非恒定流进行数值试验。

Based on the characteristic method the numerical experiments are con - ducted by computer using FORTRAN program .

采用结构化较强的C语言解决洪水演进的二维非恒定流计算中的边界问题，用C语言的结构体功能描述边界属性，处理边界附近的区域，这样能良好反映实际边界条件；

This paper applies structured language C-language to deal with boundary problem of 2-D unsteady flow calculation in flood development . Using the function of structured C-language can describe the properties of boundary and deal with the area nearby boundary .

由美国环保署开发暴雨管理模型（SWMM）在排水管网非恒定流模拟方面有着广泛的应用。

Storm water management model system ( SWMM ) development by US-EPA has its wide application in this area .

为研究明渠非恒定流运动特性和输沙机理，建立了长20m，宽29.5cm，高40cm的水槽非恒定流实验系统。

A flume system was built to experimentally study unsteady flow and sedimentation . The flume is 20 m long , 29.5 cm wide , and 40 cm high .

用随机方法解河渠非恒定流

The solution of unsteady open channel flow by the stochastic method

山区河流非恒定流航道沙卵石浅滩整治

Sand-Pebble Shoal Regulation in Channel with Inconstant Flow of Mountainous River

天然河道非恒定流条件下阻力系数变化规律的研究

Studies on Drag Coefficient of Unsteady Flow in Natural Open Channels

用扩散差分格式解明渠一维非恒定流

Solution of One-Dimensional Unsteady Open Channel Flow by Diffusive Difference Scheme

渠系非恒定流数值模似方法的应用

Application of Numerical Model Method to Unsteady Flow in Canal Systems

多层建筑物排水（污）系统非恒定流数学模型

A Mathematical Model of Unsteady Flow in the Multistory Drainage Network

江苏泗阳船闸下游引航道非恒定流研究

Research of Unsteady Flow at Lower Lock Approach of Siyang Tri-locks

明渠非恒定流的数值计算

Numerical Computation on the Non - steady Flow of Open Channels

显式有限元法在河网非恒定流分析计算中的应用

The Application of Finite Element Method in River Network Unsteady Flow

非恒定流垂线流速分布规律的初探

Discussion on the Pattern of Vertical Velocity Distribution of Unsteady Flow

旋桨式流速仪在非恒定流模型试验中的应用

The Application of Propeller Flow Meter in Unsteady Flow Model Test

明渠非恒定流控制方程的求解与应用

Solution to controlling equations of unsteady flow of open channel flow

连接管长度对调压井非恒定流现象的影响

The effect of riser length on non-steady water in surge tank

梯级水电站间河道型水库非恒定流调节

Regulation of unsteady flow in river-type reservoir between cascade hydropower stations

长距离输水系统的非恒定流特性研究

Study on Unsteady Flow in Long - Distance Water Diversion Projects

河网非恒定流隐式方程组的汊点分组解法

A junctions group method for unsteady flow in multiply connected networks

电站非恒定流对长尾水渠通航的影响

Research on Navigation of Long Tailwater Channel Affected by Unsteady Flow

珠江三角洲一维河网非恒定流悬沙预测模拟

Prediction model for suspended-sediment transport in unsteady flow in Pearl River network

河网非恒定流汊点分组解法

Unsteady Flow Computation Using Junctions Group Method in River Network

一维非恒定流模型在太湖湖滨地区的应用研究

Research and Application of One-dimensional Unsteady Flow Model in Tahu Lake Area

城市排水系统非恒定流模拟模型研究

Study on Unsteady Flow Simulation Model of Urban Drainage System