IMECH-IR  > 环境力学重点实验室(2009-2011)
坡面薄层水流的阻力特性研究
安翼; 刘青泉; 唐超
Source Publication中国力学学会学术大会2009(CCTAM2009).郑州.2009-08-24~2009-08-26.
2009-12-22
Conference Name中国力学学会学术大会2009(CCTAM2009)
Conference Date2009-08-24~2009-08-26
Conference Place郑州
Abstract坡面流的阻力十分复杂,一直是大家十分关注的科学问题之一。本文针对复杂坡面问题,通过数值模拟实验,细致讨论了坡面薄层水流的流动及其阻力特性,分析了绕流在其中发挥的重要作用,以及阻力与常见参数(如坡度、流量)之间的关系。结果表明:坡面薄层水流性质复杂,各个影响因素在常见的环境条件范围内变化较大;常见雨强情况下,水流无法完全淹没地表凸起,绕流现象明显,坡面地形是坡面流表面形状的核心影响因素;绕流引起水流的集中,使相应区域水深增加、流速加快、坡面所受压强和切应力增加;复杂坡面上薄层水流的阻力性质与明渠流差别很大,坡度、流量等对坡面流阻力影响明显,阻力与环境参数之间具有比较复杂的对应关系。
Keyword坡面流 阻力 微地形 沟间流 绕流 大涡模拟
Indexed By其他
Language中文
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/28734
Collection环境力学重点实验室(2009-2011)
Corresponding Author刘青泉
Recommended Citation
GB/T 7714
安翼,刘青泉,唐超. 坡面薄层水流的阻力特性研究[C]中国力学学会学术大会2009(CCTAM2009).郑州.2009-08-24~2009-08-26.,2009.
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