A novel hybrid primary break-up model, which is based on coupling of direct numerical simulation (DNS), energy conservation method and linear stability analysis has been implemented into a 3D CFD code and has been tested under conditions typical for Diesel fuel injection in IC engines. Droplet spectra have been pre-calculated for the relevant range of injection and have been stored in a database. From this database actual values in the 3D code are gained during injection time using a quadrilinear interpolation technique to save computational effort. The results are compared with various experiments for non-evaporating and evaporating sprays with promising results.

Simulation of Primary Break-up of Diesel Jets by a Hybrid Method Combining VOF-Calculations and the Classical DDM Rate Approach with a 3D CFD Co

BIANCHI, GIAN MARCO;
2004

Abstract

A novel hybrid primary break-up model, which is based on coupling of direct numerical simulation (DNS), energy conservation method and linear stability analysis has been implemented into a 3D CFD code and has been tested under conditions typical for Diesel fuel injection in IC engines. Droplet spectra have been pre-calculated for the relevant range of injection and have been stored in a database. From this database actual values in the 3D code are gained during injection time using a quadrilinear interpolation technique to save computational effort. The results are compared with various experiments for non-evaporating and evaporating sprays with promising results.
Proceedings of ILASS-Europe 2004 Conference
1
6
Suzzi D.; v. Berg E.; Pastor J.V.; Bianchi G.M.; and Tatschl R.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/4559
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