An integrated 1D/3D workflow for analysis and optimization of injection parameters of a diesel engine 2001-24-0004
The present contribution gives an overview of the use of
different simulation tools for the optimization of injection
parameters of a diesel engine. With a one-dimensional tool, the
behavior of the mechanics and fluid dynamics of the entire
injection system is calculated. This simulation provides
information on the dynamic needle lift, injection rates, pressures,
The flow within the injector is simulated using a
three-dimensional CFD tool. By use of a two-phase model, it is
possible to analyze the cavitating flow inside the injector and to
calculate the effective nozzle hole area as well as the exit flow
characteristics. Mixture formation, combustion and pollutant
formation simulation is performed adopting three-dimensional CFD.
In order to provide the initial and boundary conditions for the
engine CFD simulation and to optimize the engine cycle performance
a one-dimensional tool is adopted.
The way that these simulation tools can be applied together will
be demonstrated on relevant application examples from the engine
development showing how the two main challenges - fuel consumption
and pollutant emissions - can be met.
Citation: Caika, V., Krammer, J., Tatschl, R., and Weissbacher, B., "An integrated 1D/3D workflow for analysis and optimization of injection parameters of a diesel engine," SAE Technical Paper 2001-24-0004, 2001, https://doi.org/10.4271/2001-24-0004. Download Citation
V. Caika, J. Krammer, R. Tatschl, B. Weissbacher