Application of an Entropy Analysis to Four-Cycle Engine Simulation 900681

This paper outlines some developments in engine modelling techniques and details the results of an extensive validation exercise. This validation was conducted in two distinct parts: firstly, on a specially constructed rig, and, secondly, using engine test results. The test rig described was constructed in such a way as to rigourously test the theories employed. Comparisons were made between measured and predicted pressure traces and air mass flow. The predicted results are shown to be in good agreement with all measurements recorded. The performance of a complete engine simulation is also described and compared with actual dynamometer test results. The accuracy of this model is clearly demonstrated for all engine performance parameters.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.