Transcription of CHAPTER TWO The Wave Characteristic Method - …
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CHAPTER TWO The Wave Characteristic Method - …
CHAPTER TWO. The Wave Characteristic Method The WCM is based on the physically accurate concept that the transient pipe flow results from the generation and propagation of pressure waves that occur as a result of a disturbance in the pipe system (valve closure, pump trip, etc.). A. pressure wave, which represents a rapid pressure and associated flow change, travels at sonic velocity for the liquid-pipe medium, and the wave is partially transmitted and reflected at all discontinuities in the pipe system (pipe junctions, pumps, open or closed ends, surge tanks, etc). A pressure wave can also be modified by pipe wall resistance. This description is one that closely represents the actual mechanism of transient pipe flow. In this CHAPTER , relationships are presented for the magnitude and propagation velocity and attenuation of pressure waves , and for the effect of pressure waves impinging on piping system elements.
CHAPTER TWO The Wave Characteristic Method The WCM is based on the physically accurate concept that the transient pipe flow results from the generation and propagation of pressure waves that occur
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