复杂河道二维水流数学模型与应用  

Two dimensional flow mathematical simulation and its application in complicated channel

作　　者：陈虹[1] 王胜安[1] 

机构地区：[1]福州大学土木工程学院,福建福州350108

出　　处：《福州大学学报（自然科学版）》2010年第4期589-595,共7页Journal of Fuzhou University(Natural Science Edition)

基　　金：福建省教育厅科研资助项目(JB07029);福建省自然科学基金资助项目(E0710013)

摘　　要：采用二维非恒定流方程为基本控制方程,运用有限元法建立复杂河道的二维水流数学模型,并应用于福州市大学新区溪源溪下游河道.计算结果表明,数学模型计算值能够较好的吻合实测值,能正确反映河道的水位、流量变化过程,很好地复现河道的水流形态.A two -dimensional flow mathematic model for the complicated channel, which is apphed to the downstream channel of Xiyuan brook in the new districts of Fuzhou university, is established by using two - dimensional unsteady flow equations as the basic control equation and the finite element method. The calculation results show that the mathematical model, of which the calculated values can better agree with the measured and accurately reflect the water level and flow＇ s change processes, can be used for study on water flow movement rule of fiver regulation scheme and flood control and drainage system.

关 键 词：河道 水流 数学模型 有限元法 

分 类 号：TV143[水利工程—水力学及河流动力学]