Advances in control and automation of water systems by Kaveh Hariri Asli; et al

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By Kaveh Hariri Asli; et al

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4) (Allievi Formula) The elastic theory developed by these two pioneers is fundamental to the field of hydraulic transients. The combined elasticity of both the water and the pipe walls is characterized by the pressure wave speed, a. This relation is a simplified form of the equation applicable to an instantaneous stoppage of velocity [4]. 5) initial conditions. For an instantaneous valve closure or stoppage of flow, the upsurge pressure (H– Ho) is known as the “Joukowski head”. Given that a is roughly 100 times as large as g, a 1 ft.

2007d). Water hammer and valves. 8th Conference on Ministry of Energetic works at research week. Tehran, Iran. 13. Hariri, K. (2007e). Water hammer and hydrodynamics’ instability. 8th Conference on Ministry of Energetic works at research week. Tehran, Iran. 14. Hariri, K. (2007f). Water hammer analysis and formulation. 8th Conference on Ministry of Energetic works at research week. Tehran, Iran. 15. Hariri, K. (2007g). Water hammer and fluid condition. 8th Conference on Ministry of Energetic works at research week.

Y. (1985). Second-order accurate explicit finite-difference schemes for water hammer analysis. Journal of Fluids Engineering 107, 523–529. 2. Izquierdo, J. and Iglesias, P. L. (2002). Mathematical modeling of hydraulic transients in simple systems. Mathematical and Computer Modeling 35(7), 801–812. 3. Ghidaoui, M. , Mansour, G. , and Zhao, M. (2002). Applicability of quasi steady and axisymmetric turbulence models in water hammer. Journal of Hydraulic Engineering 128(10), 917–924. 4. Izquierdo, J.

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