Modeling of Flow Control Valves with a Nonzero Loss Coefficient

AbstractAs shown by the examples given in this paper, a commonly used, commercially available water distribution network modeling software may produce unrealistic results for flow control valves (FCVs) with a nonzero loss coefficient. This paper presents and discusses a simple technique to remedy th...

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Bibliographic Details
Published in:Journal of hydraulic engineering (New York, N.Y.) N.Y.), 2016-11, Vol.142 (11)
Main Authors: Gorev, N. B, Kodzhespirova, I. F, Sivakumar, P
Format: Article
Language:English
Subjects:
Coefficients
Computational fluid dynamics
Computer programs
Flow control
Modelling
Software
Solvers
Technical Note
Technical Notes
Valves
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Summary:AbstractAs shown by the examples given in this paper, a commonly used, commercially available water distribution network modeling software may produce unrealistic results for flow control valves (FCVs) with a nonzero loss coefficient. This paper presents and discusses a simple technique to remedy this problem. According to this technique, an FCV with a nonzero loss coefficient K is modeled as a composite link that consists of an FCV of the same setting with a zero loss coefficient and an artificial pipe of negligibly small major loss with a diameter equal to the FCV diameter and a minor loss coefficient equal to K. The proposed technique can be implemented using the discussed software without any modification of its hydraulic solver.
ISSN:0733-9429
1943-7900
DOI:10.1061/(ASCE)HY.1943-7900.0001197