WP1.1 Overall specification and assessment
Current activities
The cooperation process between SPs defined in 2009 has been successfully tested on SP3 reference direct drive engine.
A close cooperation between Airbus and SP1 OEMs is ongoing to ensure a fair and complete understanding of fuel burn computations regarding advanced turbofan engine linked to SP4 activities.
Results & achievements
Through an active cooperation involving all SPs partners, a detailed assessment process was defined to make a clear, fair and complete comparison of all engine architectures benefits vs Year 2000 engine configurations.
This assessment process covers fuel burn (metrics for pollutioin and economis), and noise on the certification points.
WP1.2 TERA2020
The W1.2 activities were focused on the adaptation of the TERA2020 techno-environment assessment tool to the novel concepts studied, particularly open rotor engines.
Results & achievements
The final DREAM TERA2020 simulation platform was successfully completed and integrated in iSight.
It includes innovative simulation modules capable of estimating engine performance, noise (on FAR points), engine weight, aircraft mission and gaseous emissions for different geared and direct drive open rotor engine designs.
The models were successfully verified against available data and OEM experience.
The TERA2020 platform is currently being used to perform sensitivity analysis and trade off studies regarding fuel burn, emissions and noise.
The noise module (called TENOR) is based on unsteady CFD calculations and captures the interaction between propellers.
The picture on the left shows the pressure field between rotors and we can see the wakes of the front rotor impacting in the rear rotor.
The picture on the right shows the noise spectrum in the 3 FAR certification points. It can be seen that both tone and broaband noise are captured by the model.