Design of a Pressurized Rectangular-Shaped Conduit Using the Rough Model Method (Part 1)

Abstract:

The rough model method is successfully used to design a pressurized rectangular shaped conduit characterized by two linear dimensions. In this study, the focus is on the calculation of the horizontal linear dimension of the conduit. In a first step, the method is applied to a referential rough model in order to establish the relationships that govern its hydraulic characteristics. The obtained equations are of the third degree and are easily solved by trigonometric and hyperbolic functions. In a second step, these equations are used to easily deduce the linear dimension sought by introducing a non-dimensional correction factor. Practical example is taken to enable the hydraulic engineer to better understanding the advocated method and to observe the facility with which design of such a geometric profile can be performed. The calculation uses a strict minimum of data measurable in practice, in particular the absolute roughness.

• Periodical: Applied Mechanics and Materials (Volumes 641-642)
• Pages: 261-266
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.641-642.261
• Online since: September 2014
• Authors: Bachir Achour*
• Keywords: Design, Discharges, Energy Slope, Pressurized Conduit, Rectangular Conduit, Rough Model Method, Turbulent Flow

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