Abstract
This paper deals with an analysis of water hammer induced by instantaneous interception of a stationary flow in an elastic pipe. The analysis is based on the Laplace transform and the theorem of residue. The membrane theory of a cylindrical shell is used to describe the motion of the pipe wall. The fluid is regarded as inviscid. Among innumerable modes of the coupled waves of the pipe and the fluid, only two …are considered in the analysis, because they are the most important ones. Numerical calculation is executed for two types of boundary conditions. In the case that a valve is placed at a movable end of the pipe, the time history of pressure change becomes very complicated because of the longitudinal motion of the pipe.
