RESEARCH ARTICLE
Computation of Normal Depth in Parabolic Cross Sections Using The Rough Model Method
Bachir ACHOUR
Article Information
Identifiers and Pagination:
Year: 2014Volume: 8
First Page: 213
Last Page: 218
Publisher ID: TOCIEJ-8-213
DOI: 10.2174/1874149501408010213
Article History:
Received Date: 10/4/2014Revision Received Date: 8/7/2014
Acceptance Date: 11/7/2014
Electronic publication date: 17/9/2014
Collection year: 2014
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
A new method is applied to calculate the normal depth in an open channel of parabolic cross section. This is the rough model method whose main particularity is to ignore the flow resistance coefficients, such as Chezy’s coefficient and manning’s roughness coefficient. The method is applied to a referential rough model, whose friction coefficient is constant, which explicitly express the hydraulic and geometric characteristics of the model such as aspect ratio. By means of a non-dimensional correction factor, the normal depth is explicitly deduced. The rough model method is applicable to the entire domain of turbulent flow.