Fluid Dynamic Simulation Software


AFT Fathom is a fluid dynamic simulation software for engineers, used to calculate pressure drop and pipe flow distribution in liquid and low-velocity gas piping and ducting systems.

  • Accurately simulate individual system components and interaction
  • Tightly integrates equipment characteristics, analysis and output with your system’s schematic representation
  • Provides a wide array of features without sacrificing your need for a short learning curve
  • Frees you to focus on your system, not the mechanics of software manipulation
  • Significantly improves the quality of systems engineering you can achieve, leading to less costly, more efficient and more reliable piping systems

Compressible Flow Simulation Tool


  • Apply advanced marching methods which provide highly accurate results
  • Evaluate choking conditions and determine flow conditions downstream of choke points
  • Model fans and compressors, control valves, heat exchangers and other components with precise detail
  • Specify relief valve behavior with opening and closing profiles to ensure your system fails safely
  • Track all your design variants and potential operating conditions in a single file with Scenario Manager.

Waterhammer & Surge Analysis Software


  • Advanced transient solver based on Method of Characteristics
  • Built-in steady-state solver to automatically initialize water-hammer transient
  • Detailed pump inertial modeling for trips and start-ups including state-of-the-art, four quadrant methods
  • Built-in library of fluids and fittings
  • Models liquid column separation caused by transient cavitation
  • Extensive cavitation modeling
  • Scenario Manager to track all design variants and operational possibilities in a single model file with data linkage.

Steam & Gas Transient Analysis Software

AFT xStream™

  • Save time with report-ready graphs
  • Manage graph items and templates to re-use and compare different system set-ups
  • Graph or animate parameters along a pipe length to see pressure and flow transmission
  • Graph multiple parameters over time to understand system cause-and-effect
  • Integrate flowrates to measure total flow over time
  • Visually associate parameter results with locations in the system
  • Color code your system to reflect parameter result range
  • Color animate pipes in your system to see transient behavior in context