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A platform for research: civil engineering, architecture and urbanism
Efficient Quasi-Two-Dimensional Water Hammer Model on a Characteristic Grid
This note proposes a new quasi-two-dimensional (quasi-2D) numerical scheme for simulating a water hammer that significantly reduces the computational burden compared to two existing quasi-2D schemes, as numerically demonstrated in this note by application to a reservoir-pipe-valve system. Computational cost is decreased through using one-dimensional (1D), rather than two-dimensional equations for pressure head and discharge and using a staggered grid with half of the computational nodes compared to a rectangular grid. It is valid to use the proposed 1D characteristic equations for the pressure head and discharge, as it is proved that these yield identical results to explicit quasi-2D solution procedures previously introduced in the literature.
Efficient Quasi-Two-Dimensional Water Hammer Model on a Characteristic Grid
This note proposes a new quasi-two-dimensional (quasi-2D) numerical scheme for simulating a water hammer that significantly reduces the computational burden compared to two existing quasi-2D schemes, as numerically demonstrated in this note by application to a reservoir-pipe-valve system. Computational cost is decreased through using one-dimensional (1D), rather than two-dimensional equations for pressure head and discharge and using a staggered grid with half of the computational nodes compared to a rectangular grid. It is valid to use the proposed 1D characteristic equations for the pressure head and discharge, as it is proved that these yield identical results to explicit quasi-2D solution procedures previously introduced in the literature.
Efficient Quasi-Two-Dimensional Water Hammer Model on a Characteristic Grid
Jang, Tae Uk (author) / Wu, Yuebin (author) / Xu, Ying (author) / Newman, Jeffrey (author) / Sun, Qiang (author)
2016-07-27
Article (Journal)
Electronic Resource
Unknown
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