摘要
根据膜孔灌溉田面水流运动特性 ,建立了膜孔灌溉田面水流运动零惯性量数学模型 ,并将其与优化理论相结合 ,提出了确定膜孔灌溉田面综合糙率系数的优化模型。实例计算与方法验证表明 ,该方法能够简单而有效地确定膜孔灌溉田面综合糙率系数。
Based on water flow movement characteristics in film hole irrigation, a zero inertia model form surface water flow movement in film hole irrigation were presented in this paper. With combining optimization method, an optimal model of determining synthetic surface roughness coefficient in film hole irrigation was developed. Case study indicated that the model is simple and effective.
出处
《灌溉排水》
CSCD
北大核心
2001年第1期32-34,54,共4页
Irrigation and Drainage
基金
国家自然科学基金资助项目! (5 97790 2 7)
陕西省"九五"攻关项目! (95 K0 4-G4)
