CAJ | 학술논문

针对DWSM计算模式鲁棒性低、计算时间长、无法实现多核计算等局限性，对模型的算法和存储规则进行相应改进。在遵从DWSM计算逻辑顺序的基础上，抛弃原计算单元顺序表模式关于虚拟河道的假设，采用流域分区概念进行河网树结构的模式设计，在基于叶节点并行计算的基础上研究动态分级并行计算技术，以进一步完善计算模式。以黄河宁蒙段流域为实例，计算结果表明，算法的优化极大地提高了DWSM的计算效率，增强了其对大范围、具有复杂河网结构流域水沙规律研究的适用性。
침대DWSM계산모식로봉성저、계산시간장、무법실현다핵계산등국한성，대모형적산법화존저규칙진행상응개진。재준종DWSM계산라집순서적기출상，포기원계산단원순서표모식관우허의하도적가설，채용류역분구개념진행하망수결구적모식설계，재기우협절점병행계산적기출상연구동태분급병행계산기술，이진일보완선계산모식。이황하저몽단류역위실례，계산결과표명，산법적우화겁대지제고료DWSM적계산효솔，증강료기대대범위、구유복잡하망결구류역수사규률연구적괄용성。
The computing model of Dynamic Watershed Simulation Model ( DWSM ) has some limitations, such as low robustness, long computing time, and inability to realize failure in a multicore computer. Therefore, in this paper, we improved the algorithms and storing rules. Based on the computational logic sequence of DWSM, we suggest to use the concept of basin subarea to design the tree structure model of river network instead of the hypothesis on virtual channel of the original calculation unit sequence table model. Also, we introduce the dynamic hierarchical parallel computing technology according to parallel computation of leaf nodes to improve the calculation model. Taking the Yellow River basin between Ningxia and Neimenggu as an example, the results show that the optimization of algorithm greatly improves the computational efficiency of DWSM as well as increases the applicability of calculation on water and sediment rules in the basins with large scale and complex structure of river network.