ABSTRACT

Analysis, design, and operational procedures all benefit from computer simulations. The study of hydraulic transients is generally considered to have begun with the works of Joukowsky (1898) and Allievi (1902). The historical development of this subject makes for good reading. A number of pioneers made breakthrough contributions to the field, including R. Angus and John Parmakian (1963) and Wood (1970), who popularized and refined the graphical calculation method. Benjamin Wylie and Victor Streeter (1993) combined the method of characteristics (MOC) with computer modeling. The field of fluid transients is still rapidly evolving worldwide by Brunone et al., (2000); Koelle and Luvizotto, (1996); Filion and Karney, (2002); Hamam and McCorquodale, (1982); Savic and Walters, (1995); Walski and Lutes, (1994); Wu and Simpson, (2000). Various methods have been developed to solve transient flow in pipes. This range has been formed from approximate equations to numerical solutions of the nonlinear Navier-Stokes equations. The similarity of the transient conditions caused by different source devices provides the key to transient analysis in a wide range of different systems by understanding the initial state of the system and the ways in which energy and mass are added or removed from it. This is best illustrated by an example for a present research pumping system (Figure 7.1).