Calibration of spray model constants for CFD-simulations of DI diesel engines using the representative interactive flamelet (RIF) model
by J. Weber, N. Peters
International Journal of Vehicle Design (IJVD), Vol. 41, No. 1/2/3/4, 2006

Abstract: Results from an engine test bench and simulation by means of Computational Fluid Dynamics (CFD) are compared to study the influence of a parameter variation of start of fuel injection and spray angle. A methodology shows how the unknown spray model parameters are determined when no data from spray chamber experiments is available. Based on the pressure trace as response, a systematical search for a point in the parameter space spanned by the unknown spray model parameters leads to an optimum where the pressure trace, apparent heat release rate and pollutants are in a good agreement between experimental data and results from simulation.

Online publication date: Thu, 04-May-2006

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