CAJ | 학술논문

应用Preissmann四点隐式差分格式和空间交错网格隐式差分迎风格式建立了龙门至三门峡断面的一维水动力及水质模型。应用P-Ⅲ型曲线对1960年以来龙门与河津站的历年最枯月平均流量及史家滩站平均水位进行了统计分析，得出了三门峡水库水环境容量的设计条件。应用建立的一维水动力及水质模型，计算了周边水功能区水质达标情况下三门峡水库的水环境容量。计算结果表明，如果支流水功能区水质达标，库区排污口CODMn、氨氮不需要削减排放，水质也可达标。
응용Preissmann사점은식차분격식화공간교착망격은식차분영풍격식건립료룡문지삼문협단면적일유수동력급수질모형。응용P-Ⅲ형곡선대1960년이래룡문여하진참적력년최고월평균류량급사가탄참평균수위진행료통계분석，득출료삼문협수고수배경용량적설계조건。응용건립적일유수동력급수질모형，계산료주변수공능구수질체표정황하삼문협수고적수배경용량。계산결과표명，여과지류수공능구수질체표，고구배오구CODMn、안담불수요삭감배방，수질야가체표。
With Preissmann format and implicit finite difference scheme on a space staggered grid system,a one-dimensional hydrodynamic-quality model of Sanmenxia Reservoir was built. Based on the analysis of flow and water level data of Longmen,Hejin and Sanmenxia since 1960s,90%guarantee rate hydrology condition was designed with P-Ⅲ curve method. With the model the water environment capacity of Sanmenxia Reservoir under the design condition was calculated in the condition that the upstream,downstream and tributary water quality achieving the water quality standard. The calculation results show that CODMn and ammonia nitrogen of drain outlet are not required to reduce and water quality of Sanmenxia Reservoir can meet the quality standard in the same condition.