Title: A nonlinear acoustic model of inlet and exhaust flow in multi-cylinder internal combustion engines
Abstract: In recent years computer analysis has become an integral part of the overall automotive vehicle design process, particularly in the areas of structural design and, more recently, engine performance simulation. In the past, various models have been used to predict the gas exchange process in internal combustion engines ranging from complex multidimensional fluid calculations to simple Helmholtz resonator models. We present here a model which bridges the gap between simple Helmholtz resonator models and more complex spatial models used to predict engine air flow. The validity of the model is demonstrated by means of a comparison of the predicted and experimentally determined volumetric efficiency and pressure time history in the inlet manifold of both a motored single cylinder engine and a production four cylinder engine.
Publication Year: 1983
Publication Date: 1983-11-01
Language: en
Type: article
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Cited By Count: 2
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