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GSP Details

With GSP you can model and analyze the performance of virtually any gas turbine engine configuration, with both steady-state and transient simulation sessions.

With GSP lets you predict the performance of a new turbine, but you can also use GSP for various other types of analysis:

  • installation loss analysis,
  • analysis of effects of certain engine malfunctioning (including control system malfunctioning) and
  • component deterioration effects analysis.

Rapid configuration of models

In GSP you create your specific engine configuration by dragging and dropping components on a canvas and connecting them. A GSP model requires engine system and component performance data (‘maps’) that may be obtained from manufacturers or alternatively from open data sources. A number of standard maps are provided that can be scaled to the specific engine cycle, in case original OEM maps are not available.

Available components for building gas turbine engine models

A full overview of the components from which you can build your turbine model can be found on the website of the GSP core version. These include

  • gas path components like inlet, compressor and turbine,
  • control components like fuel flow control and pressure vessel control,
  • scheduler components to establish user specified simple or complex relations among parameters by adapting fuel flow or other input variables,
  • specific gas path components like a multi reactor combustion component.


Outputs of GSP include

  • gas conditions: temperatures, pressures, mass flows, areas, speeds, etc.
  • gas composition: gas species are available since GSP uses a full thermo-chemical gas properties model.

Simulation results can be exported to CSV files for further analysis with tools like Excel.

Validated for many turbine engines

GSP has already been used for simulation of many different aero-engine, marine and industrial gas turbines engines, including: CF6-50, CF6-80, GE Frame 9, P&W4000, RR GEM42, MTT 3kW Mk4 and more.

For most of these engines, ready-to-use models are available based on public domain data and are included in the installation package.

Monitor engine condition with Gas Path Analysis   (Gas Path Analysis library)

With the GSP Gas Path Analysis (GPA) library components, significant savings in maintenance costs can be obtained and safety enhanced for land based gas turbines and aero-engines. Using measured performance data, engine health information is obtained for diagnostics and trending.

It can be applied both for engine testing in the maintenance environment and on-line during normal operation. It is being used in several aero engine and industrial maintenance environments.

Engine fleet monitoring and trending database add-on (Data-analysis add-on)

A powerful extension to the gas path analysis module is the performance and condition monitoring and trending database system. Engine performance and (gas path analyzed) condition data are stored in a database. Both engine test data from the maintenance facilities and on-line/in-service (for aircraft on-wing) data can be processed and added.

This way performance and condition of both individual engines and engine fleets can be analyzed and trended for both work shop and high/ERP-level maintenance decision support.

Rotating duct component library  (Rotating duct library)

The rotating duct component library lets you model the flow in rotating frames. This library was developed for projects related to tip-jet helicopter propulsion concepts. It has also been used for the research and development of the MTT rotating combustor.

Who is behind GSP?

GSP was originally developed in 1986 at Aerospace department of Delft University of Technology. Currently, the software is actively developed by both Delft University of Technology and the Dutch National Aerospace Laboratory (NLR).


Additional Information