Analysis of Non-Uniform Flow in Regular Cross-Sectional Channel with Locally varied Resistance Zone In the Case of Resistance Zone composed of Pile series

• Published in: Transactions of The Japanese Society of Irrigation, Drainage and Reclamation Engineering Vol. 1998; no. 196; pp. 611 - 618,a1
• Main Authors: Mori, Nozomu, Takahashi, Mikiko, Kinose, Koichi
• Format: Journal Article
• Language: Japanese
• Published: The Japanese Society of Irrigation, Drainage and Rural Engineering 25.08.1998
• Subjects: Distribution of velocity and water level; Eddy viscosity coefficient; Hydraulicanalysis of non-uniform flow; Regular cross-sectional channel; Resistance zone
• ISSN: 0387-2335; 1884-7234
• DOI: 10.11408/jsidre1965.1998.611

Flow in regular cross-sectional channel with locally varied resistance zone near the one-sided wall is chosen as the subject of this study. The resistance zone is composed of pile series arranged like vegetation belt or rough stone zone. The lateral distribution of depth-averaged velocity within a cross section is firstly estimated from equation of motion in which we consider the eddy diffusion due to interaction between distributed piles. Secondly longitudinal water level is calculated on the basis of one-dimensional specific energy equation taking account of the lateral velocity distribution due to the pile zone. The comparison of the experimental results with the calculated values supports the availability of the analyses.