Volume 19, Issue 2 (International Journal of Engineering 2008)                   2008, 19(2): 113-118 | Back to browse issues page

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Mazaheri M, Samani V. An analytical model for transition zone of velocity distribution in submerged inflexible vegetative channels . Journal title 2008; 19 (2) :113-118
URL: http://ijiepm.iust.ac.ir/article-1-25-en.html
, samani_i@modares.ac.ir
Abstract:   (9532 Views)

 Estimating discharge and velocity in natural channels and flood plains for inflexible vegetative cover is important. In such waterways, velocity profile can be divided into three zones: uniform zone which is close to bed with uniform velocity distribution, logarithmic zone which involves the main channel without vegetative cover and the middle zone (transition zone) that is affected by the momentum of upper zone. Existing methods for estimating the discharge and velocity are based on average velocity. In this paper, an analytical model for calculating the velocity profile and transition zone thickness is presented. The results imply desirable correlation between calculated and observed parameters.

 

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Type of Study: Research |
Received: 2009/04/25 | Published: 2008/06/15

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