CAJ | 학술논문

在基于有限体积法的近岸水流数学模型中，单元交界面数值通量的计算精度、潜堤淹没和出露交替的模拟以及动边界技术都是至关重要的。首先通过加入数值通量底坡补偿项对Osher格式的数值通量计算格式进行了改进；又提出单元淹没度的概念，提高了模型在模拟潜堤出露和潮间带干湿变化中的适应性。利用典型算例对模型进行了验证，得到了满意的结果。
재기우유한체적법적근안수류수학모형중，단원교계면수치통량적계산정도、잠제엄몰화출로교체적모의이급동변계기술도시지관중요적。수선통과가입수치통량저파보상항대Osher격식적수치통량계산격식진행료개진；우제출단원엄몰도적개념，제고료모형재모의잠제출로화조간대간습변화중적괄응성。이용전형산례대모형진행료험증，득도료만의적결과。
Precision of the numerical flux through mesh interface, treatment for dike emerging?submerging al?ternating and techniques of movable boundary have important significance for the numerical current models based on FVM. Compensational term of bottom slope in calculating numerical flux was added into the model in order to im?prove the interface numerical flux that was calculated by the Osher scheme. A concept of submergence index was proposed to enhance the adaptability of the model in simulation of dike emerging?submerging and movable bound?ary in the intertidal zone. A series of ideal computational examples were simulated to verify the properties of the model. Finally, satisfactory results were obtained.