摘要
利用明渠沿程抛物型断面的概化关系式,对棱柱体明渠非恒定流的控制方程进行简化分析,并应用于忽略底坡和摩阻影响的非单一湿周断面明渠瞬时全溃问题。讨论明渠湿周断面形状对溃坝涌波各水流参数的影响,在不考虑下游河床水流影响的情形下得到了坝址的水深和最大流量与湿周断面形状系数的函数关系式。
Governing equations of nonprimatic channel unsteady flow are simplifiedly analyzed with the expressed form of channel parabolic cross section by variation of distance,and applied with dam sudden release problem in nonuniform wetted perimeter cross section on neglecting friction and slope effects.Wetted channel perimeter section shape effect on dam-break surge is discussed.The function of dam-site flow depth and maximum discharge with different section shapes is obtained on neglecting the downstream flow,friction and slope effects.
出处
《水电能源科学》
2006年第1期58-61,共4页
Water Resources and Power
关键词
渍坝波
抛物型断面
解析解
涌渡
dam-break wave
parabolic cross section
analytic solution
surge wave
