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PRODUCT: AFT Impulse 9

TITLE: ImpVerify21.imp

REFERENCE: Karney, Bryan W and McInnis, Duncan, Transient Analysis of Water Distribution Systems, Journal AWWA, July 1990, pp. 62-70, Figures 5 - 7

FLUID: Water

ASSUMPTIONS: Valve Cv is unknown, but calculated based on flow and pressure drop.

RESULTS:

DISCUSSION:

Karney uses very few sections, using fewer in AFT Impulse will result in more similar results to Karney, but using more sections is required to get a better description of the square wave behavior that results from an instantaneous closure.

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