U-shaped Channel Straight Paper.ect Flume Experimental Research And Hydraulic Characteristics Of Numerical Simulation

The amount of irrigation water irrigation facilities is itself the management level of irrigation water, is to gauge the basic condition monitoring and measurement, u-shaped channel straight flume with general due to simple and reasonable structure design, construction is convenient, practical, high precision and low cost, on the other hand, observation and fast, it is optional water quantity of facilities. Through the u-shaped channel (diameter of 40cm), selected three slope (1/600,1/700,1/800)direct flume experiment, mural type selection and test of water level, flow conditions, velocity and other data collecting and analyzing, the original data analysis and experiment results, the existing u-shaped channel of the material. Research u-shaped channel straight paper.ect flume the hydraulic characteristics of flow, observation, derive the expression under the condition of the water channel flow pattern around, Determine the conditions of water flow and the calculation method of curve, Determine the amount of water channels and minimum distance, Determine the channels of flow metering site operation methods.We can use the standard k-εturbulence model, the introduction of volume of fluid (VOF) model, the amount of U-shaped flume straight wall two-dimensional numerical simulation of flow field, and simulated results to compare calculated results with measured results. In the physical model test data, using numerical simulation method to predict the condition of different slope.This article compares the systematic analysis with study of the U-shaped volume of straight wall tank in the U-shaped channels, the volume of water features and the feasibility of practical application. From the experimental study and theoretical analysis, it can be drawn that U-shaped volume of straight wall tank with flow measurement of high precision, small head loss, simple structure, beautiful shape and so on. Preliminary results show that u-shaped channel straight flume paper.ect u-shaped channel can be used as water facilities to promote, has certain practical value.