Using Maximum Entropy For Discharge
Calculation In Open Channel Flow
Author(s)
V. E. M. G. Diniz, V. O. C. Pereira, L. P. Bispo & P. A. Souza
Abstract
This paper uses the maximum entropy model to calculate the discharge in open
channels. Rivers and an artificial rectangular channel are considered in this
paper. The maximum entropy model needs to gauge the flow velocity only in
three points to calculate the discharge of any given open channel. The flow
velocity needs to be gauged on the river thalweg. A genetic algorithm was used
to determine the three parameters of the maximum entropy equation. The
discharge calculation results obtained by the maximum entropy model aided by
the genetic algorithm were compared to the discharge calculation results
obtained by the traditional (using a rotor current meter) and acoustic methods
(Acoustic Doppler Current Profiler or ADCP). It was concluded that the
maximum entropy model is reliable because it yields results very close to the
results obtained by the traditional and acoustic methods. It was also concluded
that it makes the discharge measurement easier in any given open channel.
Keywords: maximum entropy, discharge calculation, genetic algorithm, open
channel, flow velocity.
Keywords
Keywords: maximum entropy, discharge calculation, genetic algorithm, open
channel, flow velocity.
Related Book
Other papers in this volume
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