Challenge 7
Challenge 7
In this challenge FRM model is analysed.
- Explore tutorial number 9
The following figures show the detailed model of 4-cylinder Turbochargered Gasoline Direct Injection engine as well as the case setup and the results of the simulation. (09-FastRunningModel\\Step1.gtm).
The time parameters for this model is shown in the next figure. The CPU time for the 5th case is 1 min and 04.22sec while the real simulation time is 7.44sec. This means that Real Time is 8.63 times less than the corresponding CPU time.
The simulation results of the detailed model are shown in the following figure.
The following figures show the FMR model as well as the case setup and the results of the simulation. (09-FastRunningModel\\Step8.gtm).
The time parameters for this model is shown in the next figure. The CPU time for the 5th case is 06.40sec while the real simulation time is 7.92sec. This means that Real Time is 0.8 times higher than the corresponding CPU time. This means that the simulation is a real time simulation.
The simulation results of the detailed model are shown in the following figure.
Comparing the results of the FRM model against the detailed on, it is obvious that the results match quite well.
- Build FRM Model for following configuration using FRM builder approach
- Bore 102 mm stroke 115 mm CR 17
- No of cylinder 6
- CI engine
- Twin Scroll Turbine
- GT Controller
The following figure depicts the main part of FRM Model using the FRM builder.
The main model consists of sub-models.
1. FRM_Exhaust
2. FRM_EGR_HP
3. FRM_Intake
4. Turbo
5. FRM_Diesel
The following figures show the case setup and the time parameters of the simulation
The CPU time for the 25th case is 12.99sec while the total CPU time for 25 cases is 3min and 59.34sec.
- Run all cases
The engine performance results are presented in the next figure.