辅助消能工的水力特性及在闸下低佛氏数水跃消能中的应用  

Hydraulic Characteristics of Auxiliary Energy Dissipater and its Application in Energy Dissipation by Hydraulic Jump with Low Froude number

作　　者：花立峰[1] 

机构地区：[1]西北农林科技大学,陕西杨凌712100

出　　处：《水利水电工程设计》2009年第1期42-44,共3页Design of Water Resources & Hydroelectric Engineering

摘　　要：低水头引水枢纽工程的一个普遍水力学问题,是低佛氏数水跃消能与防冲,该问题已成为水利水电工程尤其是中小型工程中亟待解决的重要课题。低佛氏数水跃消能的最大特点是产生弱水跃和颤动水跃,该水跃消能效率低,要求消力池长,工程量大。而采用辅助消能工与传统底流消能工相结合,才是解决低佛氏数水跃消能的最基本、最有效的方法。A general hydraulics issue in low head diversion key project is the issue of the energy dissipation by hydraulic jumps with low Froude(number) and the erosion protection.This is the most important issue to be solved in water resources and hydropower project,especially the small and medium-sized project.The most outstanding characteristics of energy dissipation by hydraulic jump is to create the weak hydraulic jump and vibrating jump,and such an energy dissipation by hydraulic jump is low in efficiency with longer required stilling basin length and larger work quantities.Therefore,the most basic and effective solution for low Froude number energy dissipation by hydraulic jump is to combine the auxiliary energy dissipater with the traditional energy dissipation by hydraulic jump.

关 键 词：低水头引水枢纽 低佛氏数水跃消能 辅助消能工 消能效率 

分 类 号：TV135.2[水利工程—水力学及河流动力学]