河流弯道取水口河冰动力学模型的建立方法  

Method of Building the River Ice Dynamics Model in River Bend Intake

作　　者：修海峰 李超[2] 

机构地区：[1]平阳县水利局,浙江平阳325400 [2]内蒙古农业大学水利与土木工程建筑学院,内蒙古呼和浩特010018

出　　处：《人民黄河》2013年第7期23-25,共3页Yellow River

基　　金：内蒙古自然科学基金资助项目(2012MS0721)

摘　　要：为保障河流弯道取水口在冰期的安全、稳定运行,以黄河内蒙古段某电厂弯道取水口为研究对象,研究建立了河流弯道取水口河冰动力学模型。研究主要分为实体模型试验、数学模型开发及调试、优化排冰方案3个步骤。实体模型试验的目的是研究弯道取水口处水流的运动特性及其对河冰运动的影响,分析河冰在弯道处的运动规律及积累过程;数学模型主要包括水流非恒定流模型和冰动力模型,通过模拟不同工况下河冰的运动情况来不断优化和完善数学模型;优化排冰方案是通过运行不同的导冰筏设计方案确定出合理的设计结构,最终提出针对不同弯道取水口的合理、有效的排冰模式。To protect the river bend intake safety,stable operation in the frozen period,the power plant water intake in the bend of Inner Mongolia section in the Yellow River as the research object,the model of river bend intake river ice dynamics were established and studied.The research is mainly divided into 3 steps,including the physical model test,the development and debugging,optimization mathematical model of ice scheme.The physical model experiment content is the motion characteristics of intake flow curve and its influence on river ice movement,movement analysis process of river ice in the corners and accumulation;The mathematical model includes model of unsteady flow in ice water and ice dynamics model,through the movement simulation of river ice under different working conditions to optimize and perfect the model;Through the guide of ice-rafted design run difference,we determine a reasonable design structure,optimize the ice scheme,finally put forward reasonable,effective ice model for different bend intake.

关 键 词：水动力学模型 河冰 取水口 弯道 河流 

分 类 号：TV133[水利工程—水力学及河流动力学]