H2020 ENODISE: ONERA Numerical Aeroacoustic Database Configuration B1

<p>The ONERA numerical database on configuration B1 deals with the scattering effects of 3 side-by-side puller propellers installed upstream a wing profile in a flow, using an in-house 3-steps-chaining-method. The aim of this work has been to evaluate the ability of the method to predict the scattering effects on the sound pressure level and its directivity.</p> <p><br> The two operating points that have been studied are:<br> &bull; U&infin; = 30 m/s, J = 0.8, AoA = 2&deg;, with a blade phase-angle &Phi;=0&deg; between the middle and the side propellers<br> &bull; U&infin; = 30 m/s, J = 0.8, AoA = 2&deg;, with a blade phase-angle &Phi;=10&deg; between the middle and the side propellers</p> <p>The present configuration follows the one described in TUD experimental contribution for configuration B1.</p> <p>A synthetized description of the numerical method including some important details and results will be included in the file ONERA_B1_configuration.pptx.</p> <p>The ONERA database contains numerical results about aerodynamic performances (thrust, torque and efficiency). It also includes pressure and sound pressure levels on the arcs microphones positions of TUD experimental configuration.<br> Data are stored in .dat and .plt format files.</p>