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Abstract
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Article Information:
Estimation of Velocity Profile Based on Chiu’s Equation in Width of Channels
Saman Nikmehr and Javad Farhoudi
Corresponding Author: Saman Nikmehr
Submitted: 2010 May, 12
Accepted: 2010 May, 23
Published: 2010 August, 01 |
Abstract:
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Distribution of velocity in channel is one of the most parameters for solution of hydraulic problems.
Determination of energy coefficient, momentum and distribution of sediment concentration depend on
distribution of velocity profile. The entropy parameter of a channel section can be determined from the relation
between the mean and maximum velocities. A technique has been developed to determine a velocity profile
on a single vertical passing through the point of maximum velocity in a channel cross section. This method is
a way in order to quick and cheap estimating of velocity distribution with high accuracy in channels. So that
in this research the power estimation of Chiu method base on entropy concept was determined. Also Chiu’s
equation that is based on entropy concept and probability domain, has compared with logarithmic and
exponential equations to estimation of velocity profile in width of channel in various depths. The results show
that Chiu’s equation better than logarithmic and exponential equations to estimation of velocity profile in width
of channel.
Key words: Channel, Chiu’s equation, entropy, velocity profile, , ,
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Cite this Reference:
Saman Nikmehr and Javad Farhoudi, . Estimation of Velocity Profile Based on Chiu’s Equation in Width of Channels. Research Journal of Applied Sciences, Engineering and Technology, (5): Page No: 476-479.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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