A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Influence of Flow Width on Mean Velocity of Debris Flows in Wide Open Channel
Debris flow in a wide open downstream channel has a significant transverse velocity component that strongly influences its mean longitudinal velocity. Investigation of observation data of debris-flow surges at Jiangjia Ravine in China shows the dependency of Manning resistance of debris flows on the ratio of flow width to depth. Regression fit reveals a power function relationship between the Manning resistance coefficient and the width-to-depth ratio. This derives a new formula of mean velocity incorporating the influence of flow width. The result indicates that the width-to-depth ratio can be viewed as a kind of shape roughness analogous to grain roughness in the Darcy-Weisbach resistance coefficient expression.
Influence of Flow Width on Mean Velocity of Debris Flows in Wide Open Channel
Debris flow in a wide open downstream channel has a significant transverse velocity component that strongly influences its mean longitudinal velocity. Investigation of observation data of debris-flow surges at Jiangjia Ravine in China shows the dependency of Manning resistance of debris flows on the ratio of flow width to depth. Regression fit reveals a power function relationship between the Manning resistance coefficient and the width-to-depth ratio. This derives a new formula of mean velocity incorporating the influence of flow width. The result indicates that the width-to-depth ratio can be viewed as a kind of shape roughness analogous to grain roughness in the Darcy-Weisbach resistance coefficient expression.
Influence of Flow Width on Mean Velocity of Debris Flows in Wide Open Channel
Hu, Kaiheng (author) / Tian, Mi (author) / Li, Yong (author)
Journal of Hydraulic Engineering ; 139 ; 65-69
2012-07-23
52013-01-01 pages
Article (Journal)
Electronic Resource
English
Influence of Flow Width on Mean Velocity of Debris Flows in Wide Open Channel
| Online Contents | 2013
Influence of Flow Width on Mean Velocity of Debris Flows in Wide Open Channel
| British Library Online Contents | 2013
Mean Velocity and Entropy in Wide Channel Flows
| ASCE | 2019
Mean Velocity of Mudflows and Debris Flows
| British Library Online Contents | 2010
Mean Velocity Distributions in Open Channel Flows with Submerged and Emergent Vegetation
| British Library Conference Proceedings | 2009