AFT Impulse Waterhammer & Surge Analysis Software AFT Impulse is a powerful fluid dynamic simulation tool used to calculate pressure transients in piping systems caused by waterhammer. Designed for use in liquid systems containing: water petroleum and refined products chemical products cryogens refrigerants and more Design and Operate Your System with Greater Safety and Reliability AFT Impulse will help… Avoid potentially catastrophic effects of waterhammer and other undesirable system transients Alleviate possible financial and environmental issues associated with inadequate system designs or operational procedures Prevent events that have serious consequences to life and property Avoid lost revenue resulting from incidents that cause down time Validate the design of safety features Features Advanced transient solver based on Method of Characteristics Built-in steady-state solver to automatically initialize waterhammer transient Detailed pump inertial modeling for trips and start-ups including state-of-the-art, four quadrant methods Models liquid column separation caused by transient cavitation Scenario Manager to track all design variants and operational possibilities in a single model file with data linkage Integrated graphing and reporting Animation features to dynamically graph transients Generates force imbalance files that can be automatically read into CAESAR II ® and TRIFLEX ® pipe stress dynamic models Built-in intelligence to guide you in building better models