Browse Publications Technical Papers 2001-01-1913
2001-05-07

Higher Accuracy Through Combining of Quasi-3D (Instead of 1D) with True-3D Manifold Flow Models During the Simulation of ICE Gas Exchange Processes 2001-01-1913

So far the simulation of the gas exchange, air/fuel mixture formation and burning processes in ICE was usually done, for cost reasons, by a combination of 1D models for the intake and exhaust manifold and 3D models for the cylinder. In order to implement the modeling of the pipe flow more exactly, and also economically at the same time, a new method is presented here, called the quasi-3D method.
After the presentation of the theoretical basis and the detailed description of the modeling technique, the quasi 3D method for one-cylinder research engine is applied. The simulation results of this application are compared with pressure measurements, followed by an evaluation and discussion of their accuracy.

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