It can be used to design an engine or to evaluate off-design performance for a given engine. Rate and force problems of different levels of difficulty are included. These are targeted for the high school student. The rate problems deal with how far and how long an airplane can fly on a given amount of fuel. The force problems deal with Newton's laws of motion on takeoff.
Graphical feedback is given for each answer choice.
In the Design Mode, you can change design variables including the flight conditions, the engine size, the inlet performance, the turbo machinery compressor and turbine performance, the combustors or burner performance, or the nozzle performance. For a turbofan engine design you can also vary the fan performance and the bypass ratio. The software was created to illustrate an example of the research being conducted at the NASA Glenn Research Center and is designed to be an intuitive tool to supplement and enhance math and science curricula. A EngineSim listserv has been set up to notify users of upgrades, new supporting materials available, and known problems. After using EngineSim, please provide feedback by completing the User Reply Card .