CAJ | 학술논문

水质模型的参数率定一直是水质预报的难点。由于要求模型计算结果准确，故必须对每个参数反复多次计算才能给出一个较为可用的参数值。用传统的串行计算方法来处理参数率定问题，其计算时间过长，无法快速给出准确的模型。文章利用已有的数据和经验，根据沙颍河具体的水质和应用特点，在国内首次提出了采用基于并行计算技术的高性能计算方法，对沙颍河支流水质模型进行多参数率定的方案，并在曙光系列并行机上得以实现。结果表明：其率定的准确性大大优于常规率定，并缩短了整个模型的建模时间，由此为模型的快速应用提供了可靠的参教依据。
수질모형적삼수솔정일직시수질예보적난점。유우요구모형계산결과준학，고필수대매개삼수반복다차계산재능급출일개교위가용적삼수치。용전통적천행계산방법래처리삼수솔정문제，기계산시간과장，무법쾌속급출준학적모형。문장이용이유적수거화경험，근거사영하구체적수질화응용특점，재국내수차제출료채용기우병행계산기술적고성능계산방법，대사영하지류수질모형진행다삼수솔정적방안，병재서광계렬병행궤상득이실현。결과표명：기솔정적준학성대대우우상규솔정，병축단료정개모형적건모시간，유차위모형적쾌속응용제공료가고적삼교의거。
The choice of good parameter of water pollution model is a nodus in hydraulics. Because of the requirements of exactness result,an available parameter is always achieved by very large scale and many times repeated computations. The traditional serial computational method might meet with problems of needing too much time or resulting with an undetermined parameter. Using existing data and experiences,considering the character of Shaying River,and based on the water quality forecast system of Shaying River,in this paper,we firstly put forward a high performance parallel computing method of multi-parameter choice in China,and implement it on Dawing High performance parallel computer for the choice of parameter for Shaying River. Experiment shows that the exactness is better,the time for building the model is shortened ,thus supplies more credible parameter data for the application of the model.