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Business / Other Tools / AFT Impulse 4.0
AFT Impulse 4.0
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AFT Impulse 4.0 Description
AFT Impulse provides a practical tool for the piping systems engineer to address the complex subject of liquid piping systems waterhammer and surge transient events.
AFT Impulse provides a practical tool for the piping systems engineer to address the complex subject of liquid piping systems waterhammer and surge transient events. AFT Impulse incorporates an integral steady-state solver to calculate the initial conditions and seamlessly transfer these to the transient solver. Based on the same, proven solver in AFT Fathom, steady-state solutions are determined using a modified Newton-Raphson matrix interation. AFT Impulse’s transient flow solution engine is based on the Method of Characteristics, which utilizes a prescribed relationship between time step and distance step. This permits a direct solution of each time step, making AFT Impulse highly efficient. AFT Impulse lets you specify transients both on a time and event basis. For example, initiate a pump startup based on the pressure at a selected location in the system or a valve closure upon the flow direction at selected location. This powerful capability greatly expands the type of transients that may be modeled including a variety of control logic functions. Pump modeling can be as simple as a fixed flow or as sophisticated as including four quadrant effects modeling the various possible combinations of forward and reverse flow and rotation. Start and trip modeling can use specified speed vs. time or account for pump/driver inertia and driver torque vs. speed. Pump models may include integral check valves and reverse rotation brakes. From the hydraulic solution of time varying pressure and flow AFT Impulse can calculate transient unbalanced forces. Users may define force sets that can be either a force pair (e.g. bends at the beginning and end of a run) and a point force (e.g. at the termination of a run of where a pipe run contains an untied expansion joint). Users may select to include forces from pressure, momentum and frictional pressure drop reaction.
OS: Windows
User Reviews of AFT Impulse
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AFT Fathom 7.0 AFT Fathom 7.0 provides comprehensive, incompressible pipe flow analysis and system modeling capabilities combined with ease-of-use... Download
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Chempak Viewer 2.0 A powerful, easy-to-use interface, Chempak Viewer lets you access the Chempak Property Database as a stand-alone application. Select any of the over 700 fluids contained in the database or assemble non-reacting mixtures on a mass or mole basis... Download
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AFT Fathom Client 4.0 AFT Fathom provides comprehensive, incompressible pipe flow analysis and system modeling capabilities combined with ease-of-use... Download