Welcome to AFT Impulse™ 3.0, Applied Flow Technology’s powerful waterhammer modeling tool. With AFT Impulse you can model transients caused by a wide range of pipe system behavior. This will allow you to understand transient pressure extremes and, when necessary, size and locate surge suppression equipment.

AFT Impulse includes a steady-state solution engine which solves for the system initial conditions. These results are used to automatically
initialize the transient model. The engineer accesses these capabilities through an advanced graphical interface, which includes built-in expertise to guide the engineer through the modeling process.
Designing for waterhammer

Waterhammer can cause catastrophic failure of pipe systems and damage expensive equipment. Properly addressing such issues at the design stage
is essential. An AFT Impulse model allows the engineer to better understand and predict the dynamic behavior of the pipe system. When undesirable waterhammer transients are identified at the design stage, different strategies to reduce surge pressures can be evaluated. These may include surge suppression equipment, modifying the design, or modifying the system operation.

Sometimes the undesirable transients are not discovered until after the system is built. In such cases, AFT Impulse can provide critical insight into the cause of the problem, and allow the engineer to assess design and/or operational modifications to resolve the issue.
Modeling capabilities

AFT Impulse provides a broad array of features to model pipe system transients. These include:

 Transients in open and closed (recirculating) systems

 Network systems that branch or loop

 Systems with valve transients

 Systems with pump transients

 Systems with pressure or flow control valve transients

 Systems with transient cavitation and liquid column separation

 Systems with surge suppression devices such as accumulators, surge tanks and vacuum breaker valves

 Systems with variable density and viscosity

 Multiple design cases in a single model file

 Non-Newtonian fluid behavior
可以算气化和水柱分离，系统含有调压室，空气罐，真空阀。算是比较全面了吧。

但是在水工专业用的不多吧。所以估计很难在这求到！

我有个破解版，3.0的，可惜破解有问题，计算结果和例题的对不上，不敢用，但优易PFA7.0 试用版可用