Siemens softwareSimcenter Amesim
Siemens Digital Industries Software · Simcenter

Simcenter Amesim

Simulating a whole system rather than a single device. To assess how the whole plant responds to a change in operating mode, a 1D model delivers results in seconds instead of hours.

1D
system-level model
Seconds
per run instead of hours
3D coupling
combined with STAR-CCM+
VN
local engineering support

When you need a 1D model rather than 3D

The question is at system level

Whether a pump is adequately sized for the whole network, whether a control valve responds fast enough, how long start-up takes: these are system-level questions outside the scope of 3D CFD.

Thousands of scenarios are feasible

A 1D model solves in seconds, so the entire operating range can be swept, including upsets and transients.

Libraries by discipline

Ready-made hydraulic, pneumatic, thermal, electrical and mechanical blocks — you build the system by connecting blocks rather than writing equations.

Applications

  • Hydraulic and pneumatic systems — pumps, valves, cylinders, control circuits
  • Thermal systems — heat exchanger networks, steam cycles, cooling systems
  • Transients — start-up, shutdown, power loss, sudden valve closure
  • Mechatronics — motors, sensors and control laws coupled into the physical model

Strengths in industrial projects

  • Describes a whole system at very low computing cost
  • Tests control laws before they go to the field
  • Co-simulation with 3D models: the critical part solved by CFD, the rest in 1D
  • Generates reduced-order models to feed a digital twin
A 1D system model diagram in Simcenter Amesim
/image/phan-mem/amesim.jpg4:3 ratio (landscape)
The system is built by connecting library blocks, not by writing equations.

Coupled tools

Simcenter STAR-CCM+

Co-simulation: the critical equipment solved in 3D, the rest in 1D.

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Simcenter FloMaster

More specialized for large-scale piping networks.

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Simcenter ROM

Condenses the model for a real-time digital twin.

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Simcenter 3D

Takes the loads from the system model into structural analysis.

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Applications at CFDWAYS

  • Assessing how a system responds when the plant changes operating mode
  • Checking hydraulic and pneumatic systems before fabrication
  • Preparing the base model for an equipment digital twin

Industries served

Licensing & support

An Amesim license comprises the platform and discipline libraries. The cost depends on the libraries selected, so CFDWAYS first establishes the type of system you need to model.

  • The platform for building and solving 1D models
  • Discipline libraries: hydraulics, pneumatics, thermal, electrical, control
  • Coupling packages for 3D models and for external control tools

Indicative system requirements

Operating systemWindows 10/11 64-bit or Linux
CPUNo need for many cores — 1D models solve very fast
RAM8–16 GB is enough for most models

Frequently asked questions

Can a 1D model replace CFD?

No. The two tools address different questions: 1D describes how the system operates; CFD describes how the flow develops inside a single piece of equipment. Many projects need both.

Is experimental data required?

Yes. A 1D model rests on component characteristics — pump curves, valve loss coefficients. Without them the results are only qualitative.

Is your question at equipment level or system level?

Describe the system and what you want to know — CFDWAYS will advise whether 1D, 3D or both is the right answer.

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See more: The full Siemens software portfolio · Simcenter FloMaster · Digital twin capabilities