1) Manning roughness factor
曼宁糙率系数
2) manning roughness
曼宁糙率
3) Manning coefficient
曼宁系数
1.
Effect of Eichhornia Crassipes on Manning coefficient in open channel;
布袋莲对渠槽曼宁系数之影响
2.
The results showed that straw mulch affected the velocity and Manning coefficient significantly.
结果表明,有无秸秆覆盖对土壤地表径流速度和曼宁系数影响明显:1)0~30%覆盖度之间,流速随着覆盖度的增大迅速降低,而曼宁系数随着覆盖度的增大迅速增大;30%~90%覆盖度之间,流速随着覆盖度的增大降低缓慢,但曼宁系数随覆盖度增大而在高位小幅振荡。
4) roughness coefficient
糙率系数
1.
Determination on the roughness coefficient of Wutong River natural river course;
梧桐河天然河道糙率系数的确定
2.
Velocity distribution on a rough bed is more non-uniform than that on a smooth bed, the turbulence intensity distribution of non-uniform flow becomes uniform with increase of the relative depth, and the regularities of the roughness coefficients of non-uniform flow on a rough bed are.
粗糙床面非均匀流的水槽试验表明,非均匀流断面的垂线流速分布需用两个对数公式分别描述;粗糙床面的流速分布较光滑床面不均匀;非均匀流的紊流度分布随相对水深的增大而趋于均匀;粗糙床面非均匀流糙率系数的变化规律与光滑床面近似。
3.
It is clearly that the roughness coefficient needs to be corrected in hydraulic calculations for open channel flow.
根据明渠水流流动型态的概念,通过对实验资料的分析,得到均匀流时糙率系数随水深增加而减小,形成M1型水面线的非均匀流时糙率系数随水深、水力坡度的增大而增大的规律。
5) manning's coefficient of roughness
曼氏粗糙度系数
6) Manning resistant coefficient
曼宁阻力系数
1.
Forest vegetation on the oter hand can adjust water circulation, especially in slope runoff, Manning resistant coefficient (n) is one important parameter for describing the status of slope runoff, which influence runoff velocity and flux but is affected by fluctuant surface and the vegetation.
曼宁阻力系数n是坡面径流研究中的一个重要参数,影响坡面径流的流速和流量,并受地表起伏、植被状况等的综合影响。
补充资料：糙率
见谢才公式。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条