CAJ | 학술논문

根据参数辩识理论对一维水流方程中曼宁糙率的计算方法进行理论推导，建立一个求解曼宁糙率的最优模型；根据边界点观测值应用最速下降法，可得与实测资料相吻合的曼宁糙率最优解.此方法具有普遍适用性和准确性，使河道及其冲淤变化数值模拟计算更为可靠.
근거삼수변식이론대일유수류방정중만저조솔적계산방법진행이론추도，건립일개구해만저조솔적최우모형；근거변계점관측치응용최속하강법，가득여실측자료상문합적만저조솔최우해.차방법구유보편괄용성화준학성，사하도급기충어변화수치모의계산경위가고.
Based on the theory of parameter identification,a method forcalculating Manning roughuess in one-dimensional flow equation was theoretically deduced,and an optimal mathematical model for solving Manning roughness was set up.Using this model and fast descent method,we can obtain an optimal solution of Manning roughness consistent with measured data on boundary.This method has common applicability and accuracy,and it can make numerical simulation of river and its bed development more reliable.