Coupling of GT-POWER, GT-FUEL and KIVA – Europe

This one day course will introduce the coupling of 1-D diesel engine models with fuel systems models and 3-D in-cylinder flow and combustion models. It will focus on the method by which a detailed GT-POWER model can be coupled to a GT-FUEL model and how this coupled model can also be coupled with KIVA. (KIVA is a 3-D CFD code that has been customized to simulation in-cylinder flow, injection and combustion.) The improvements in fuel injection technology that allow multiple pulses per cycle and the interdependence of the combustion and the injection processes has increased the necessity to couple GT-POWER and GT-FUEL simulations. In addition, the continuous improvements in computational power have made practical the possibility to couple a 1-D engine model with a 3-D cylinder flow and combustion model that can take into account the effects of flow on the combustion process. Coupled models will allow more efficient optimization of fuel injection strategies to improve fuel efficiency, emissions and combustion noise. Each student will have his or her own computer and will participate in the class by first coupling an engine and fuel system model using the DI-Jet model and then coupling that model with a 3-D in-cylinder KIVA model.

1. Introduction to coupled modeling
   • Advantages and applications of coupled modeling
   • Review of engine modeling
   • Review of fuel system modeling
   • Review of 3-D in-cylinder modeling
   • Multiple circuits and time steps
   • Transfer of boundary conditions between systems
2. Coupling of fuel system model and engine model
   • Review of engine model including DI-Jet model
   • Review of fuel system model
   • Connection of both models
   • Setup of multiple circuits and time steps
   • Analysis of results
3. Coupling of fuel system and engine model with KIVA model
   • Review of KIVA model
   • Integration of KIVA model into coupled GT-POWER+GT-FUEL model
   • Generation of mesh in KIVA model through GT-ISE
   • Setup of time steps and transfer of boundary conditions
   • Analysis of results
4. Open forum for discussion

Course will start at 9.00 and end at 17.00