1998-11-16

Simulation of a High Performance Turbocharged S.I. Engine 983048

An automotive 3.2 liter, V8, turbocharged S.I engine by Maserati is analyzed by using integrated experimental and computational methods.
An experimental activity has been carried out during the dynamometer test. Torque, fuel consumption and air-fuel equivalence ratio have been measured for several engine speeds at wide open throttle. Furthermore, cycle averaged gas pressure and temperature have been acquired in the most important engine locations.
A 1-D fluid dynamic model has been set up, for the engine simulation using the WAVE code, by Ricardo Software. The modeling guidelines are discussed in details.
The accuracy of the model has been assessed through a comparison between the experimental and computational results.
Finally, a few simulation outputs, particularly useful for addressing the optimization process, are shown.

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