H2020 ENODISE: ONERA Numerical Aeroacoustic Database Configuration A2-Ducted

This database contains the numerical results obtained by ONERA on the configuration A2-ducted of the H2020 ENODISE project. In this configuration, a ducted propeller is placed above an S-plate to ingest an adverse pressure gradient boundary layer in a partially buried configuration. The present results can be compared to the measurements carried out by the University of Bristol.

All following parameters are kept constant in the present simulations:

• Free-stream velocity u_inf = 32 m/s,
• Propeller tip clearance d/D = 0.002,
• Propeller position inside the duct x/D = -0.0627.

Five simulations have been realized by varying the installation (with or without the S-plate) and the propeller rotation speed:

• Isolated propeller (without the S-plate), N = 6000 rpm, 8000 rpm, 11000 rpm,
• Installed propeller (with the S-plate), N = 6000 rpm, 8000 rpm.

The predictions were obtained using the ProLB solver which is based on the Lattice Boltzmann method (http://www.prolb-cfd.com/). Aerodynamic and acoustic results are provided for each simulation. One-dimensional results are saved into ASCII column files (.dat extension) while geometry and raw flow extractions are saved into HDF5 CGNS files (.cgns extension). README.txt files are included for detailed description of the data.