Browse Publications Technical Papers 2003-01-0367
2003-03-03

A Theoretical and Experimental Activity on the Dynamical Behavior of ICE Varying Area Manifolds 2003-01-0367

In reciprocating IC engines, very precise predictions of the mass of air inducted are required in order to improve both manifold design and fuel injection control. To achieve this goal, a deeper knowledge of the boundary conditions on intake and exhaust manifolds must be obtained, and a set of very accurate experimental data is needed to perform model validation.
In this paper an experimental activity is reported, which has been performed on a pipe test-rig which guarantees high reproducibility of the fluid-dynamic transients. Based on the obtained data, the authors validated a modified non-isentropic version of the method of characteristics, specifically conceived for the simulation of varying area engine manifolds.

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