In this paper an improved numerical procedure [1] to calculate the gas dynamics within an automotive engine using hybrid 1D/3D models is presented. The hybrid models are solved using a coupled calculation of a 1D-finite differencing-code and a 3D-finite volume-code. The overall methodology is reviewed, emphasising new improvements to the averaging procedure. A simply method for the boundary velocity profile initialisation is discussed. Computational results from a hybrid model of a V6 TDI engine are discussed and compared to pressure measurements for three engine speeds.

Topics:
Automotive engines, Engines, Gasdynamics, Internal combustion engines, Pressure measurement, Three-dimensional models, Unsteady flow
This content is only available via PDF.
Copyright © 2002
 by ASME
You do not currently have access to this content.