On the calculation of the hydraulic shock at ball valve closing in a time interval greater than the phase duration

Authors: A.Yu. Verushin (Varandey terminal OAO), Sh.I. Rakhmatullin, N.P. Zakharov (Center of Pipeline Transport Hydraulics of RB Academy of Science)
It is shown, that the calculation of the hydraulic shock, arising at the ball valve closing during the time interval Тз > 2L/c, must be carried out taking into account the nonlinearity of low of the flow rate decay in front of the valve, for example, using diagrams of Wood and Jones.
It is shown, that the calculation of the hydraulic shock, arising at the ball valve closing during the time interval Тз > 2L/c, must be carried out taking into account the nonlinearity of low of the flow rate decay in front of the valve, for example, using diagrams of Wood and Jones.


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