✦ LIBER ✦

Macroscale surface roughness and frictional resistance in overland flow

✍ Scribed by Lawrence, D. S. L.

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 248 KB
Volume: 22
Category: Article
ISSN: 0360-1269
DOI: 10.1002/(sici)1096-9837(199704)22:4<365::aid-esp693>3.0.co;2-6

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Reply: ‘Macroscale surface roughness and

Reply: ‘Macroscale surface roughness and frictional resistance in overland flow’

✍ Lawrence, D. S. L. 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 48 KB 👁 1 views

The model for characterizing frictional resistance in overland flow as a function of surface roughness inundation presented in Lawrence (1997, Earth Surface Processes and Landforms, 22, 365-382) is neither in error nor at odds with physical intuition. The proposed model provides a simple, physically

Discussion: ‘Macroscale surface roughnes

Discussion: ‘Macroscale surface roughness and frictional resistance in overland flow’ by D. S. L. Lawrence

✍ Abrahams, Athol D. 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 14 KB 👁 1 views

Lawrence argued that the inundation ratio Λ, defined as the mean flow depth d divided by the roughness height k, is the dominant control of flow resistance f and should be used as the primary variable when evaluating the hydraulics of overland flow on rough surfaces. Lawrence defined three flow regi

Effect of saltating sediment on flow res

Effect of saltating sediment on flow resistance and bed roughness in overland flow

✍ Abrahams, Athol D.; Li, Gary 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 118 KB 👁 2 views

The acceleration of saltating grains by overland flow causes momentum to be transferred from the flow to the grains, thereby increasing flow resistance and bed roughness. To assess the impact of saltating sediment on overland flow hydraulics, velocity profiles in transitional and turbulent flows on

Roughness coefficients and velocity esti

Roughness coefficients and velocity estimation in well-inundated sheet and rilled overland flow without strongly eroding bed forms

✍ Rouhipour, H.; W. Rose, C.; Yu, B.; Ghadiri, H. 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 182 KB 👁 1 views

Even with the flow of water over a soil surface in which roughness elements are well inundated, and in less erosive situations where erosional bed forms are not pronounced, the magnitude of resistance coefficients in equations such as those of Darcy±Weisbach, Chezy or Manning vary with flow velocity

The influence of roughness geometry and

The influence of roughness geometry and Shields parameter on flow resistance in gravel-bed channels

✍ Baiamonte, Giorgio; Ferro, Vito 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 477 KB 👁 1 views

The spatial variability of bed particles of a gravel-bed channel is analysed and treated experimentally in order to simulate the effects of the arrangement of coarse bed elements on the flow resistance law. For the studied bed patterns, characterized by the concentration Γ of coarser elements arrang

Effect of the surface roughness and cons

Effect of the surface roughness and construction material on wall slip in the flow of concentrated suspensions

✍ Sergul Acikalin Gulmus; Ulku Yilmazer 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 170 KB 👁 2 views

## Abstract Recent studies on polyethylene, elastomers, and thermoplastics have revealed that the construction material and surface roughness are two important factors affecting wall slip. In this study, to determine the true rheological behavior of model concentrated suspensions, a multiple‐gap se