Please use this identifier to cite or link to this item: https://doi.org/10.1002/(SICI)1097-0363(19990330)29:6<645
Title: Numerical study on the effects of air valve characteristics on pressure surges during pump trip in pumping systems with air entrainment
Authors: Lee, T.S. 
Leow, L.C.
Keywords: Air entrainment
Air valve
Pressure surges
Pump trip
Issue Date: 30-Mar-1999
Source: Lee, T.S.,Leow, L.C. (1999-03-30). Numerical study on the effects of air valve characteristics on pressure surges during pump trip in pumping systems with air entrainment. International Journal for Numerical Methods in Fluids 29 (6) : 645-655. ScholarBank@NUS Repository. https://doi.org/10.1002/(SICI)1097-0363(19990330)29:6<645
Abstract: An improved numerical model and computational method are proposed here for the study of the effects of air valve characteristics on pressure surges during pump trip in fluid systems with air entrainment. Numerical experiments have shown that air valves with higher inflow characteristics installed at peak locations of a fluid system may reduce the magnitude of the extreme negative pressure surges. However, for near zero air entrainment levels in the fluid system, air valves with higher outflow characteristics tend to result in higher positive pressure surges. The results of the numerical simulations seem to be in qualitative agreement with available field observations [T.S. Lee and H.F. Cheong, Teck Hock Pumping Station: Flow Rate and Pressure Transient Measurements, Johnson Pacific, Singapore, 1994].
Source Title: International Journal for Numerical Methods in Fluids
URI: http://scholarbank.nus.edu.sg/handle/10635/58550
ISSN: 02712091
DOI: 10.1002/(SICI)1097-0363(19990330)29:6<645
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