南水北调与水利科技
南水北調與水利科技
남수북조여수리과기
SOUTH-TO-NORTH WATER
2013年
z1期
95-98
,共4页
龙口%调峰%非恒定流%坦化%下游河道
龍口%調峰%非恆定流%坦化%下遊河道
룡구%조봉%비항정류%탄화%하유하도
Longkou%peak load regulating%unsteady flow%smoothing of flow%downstream river course
根据龙口水电站设计代表年典型日下泄流量过程，采用一维非恒定流水动力学模型，对龙口水利枢纽至下游天桥段河道进行流量演进模拟计算。结合河网数学模型的计算结果，对龙口水电站调峰非恒定流量沿程坦化情况及电站反调节作用进行分析。分析比较结果表明，由于龙口水电站的反调节作用，龙口-天桥河段河道流量波动幅度减小，下游河道的水流条件得到改善，保证龙口下游河道不断流，维持龙口下游河道基本生态要求，并可明显改善河道两岸农业灌溉泵站取水条件。
根據龍口水電站設計代錶年典型日下洩流量過程，採用一維非恆定流水動力學模型，對龍口水利樞紐至下遊天橋段河道進行流量縯進模擬計算。結閤河網數學模型的計算結果，對龍口水電站調峰非恆定流量沿程坦化情況及電站反調節作用進行分析。分析比較結果錶明，由于龍口水電站的反調節作用，龍口-天橋河段河道流量波動幅度減小，下遊河道的水流條件得到改善，保證龍口下遊河道不斷流，維持龍口下遊河道基本生態要求，併可明顯改善河道兩岸農業灌溉泵站取水條件。
근거룡구수전참설계대표년전형일하설류량과정，채용일유비항정류수동역학모형，대룡구수리추뉴지하유천교단하도진행류량연진모의계산。결합하망수학모형적계산결과，대룡구수전참조봉비항정류량연정탄화정황급전참반조절작용진행분석。분석비교결과표명，유우룡구수전참적반조절작용，룡구-천교하단하도류량파동폭도감소，하유하도적수류조건득도개선，보증룡구하유하도불단류，유지룡구하유하도기본생태요구，병가명현개선하도량안농업관개빙참취수조건。
Usingone-dimensionalconstantflowmodelandTianqiaoreservoir'swaterastheboundaryconditionofdownstream,itanalyzedthedis-charge process of Longkou hydroelectric power station. Through analyzing the results of the model, simulation is performed to analyze the smoothing process of the unsteady flow discharged from Longkou Water Control Project when it's working at peak load and the regulation effect oftheproject.Aone-dimensionalunsteadyflowdynamicmodelisadoptedforthesimulation,usingthetypicaldischargegraphintherepresenta-tivedesignyearoftheproject.ThesimulationshowsthatLongkouWaterControlProject playsasignificantroleinimprovingflowregimeinthe downstreamrivercourse.ItallaysflowfluctuationintheLongkou-Tianqiaoreach,preventsthedownstreamcoursefromdryingup,helpsmain-tain the downstream ecology, and improves irrigation along the river.
