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http://dx.doi.org/10.3741/JKWRA.2018.51.11.971

Two-dimensional unsteady flow analysis with a five region turbulence models for a simple pipeline system  

Kim, Hyun Jun (Department of Civil Engineering, Pusan National University)
Kim, Sangh Hyun (Department of Civil Engineering, Pusan National University)
Baek, Da Won (Department of Civil Engineering, Pusan National University)
Publication Information
Journal of Korea Water Resources Association / v.51, no.11, 2018 , pp. 971-976 More about this Journal
Abstract
An accurate analysis of pipeline transient is important for proper management and operation of a water distribution systems. The computational accuracy and its cost are two distinct components for unsteady flow analysis model, which can be strength and weakness of three-dimensional model and one-dimensional model, respectively. In this study, we used two-dimensional unsteady flow model with Five-Region Turbulence model (FRTM) with the implementation of interaction between liquid and air Since FRTM has an empirical component to be determined, we explored the response feature of two-dimensional flow model. The relationship between friction behaviour and the variation of undetermined parameter was configured through the comparison between numerical simulations and experimental results.
Keywords
Pipeline analysis; Two-dimensional flow analysis; Turbulence model; Velocity profile; Waterhammer;
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