Investigations of Sunroof Buffeting

摘要

1.An experimental test case for sunroof buffeting was established with a 2.simple geometry with well-defined boundary conditions and 3.a robust, repeatable behaviour. 4.The basic buffeting mechanism was confirmed as a shear layer with coherent vortical structures triggering a cavity resonance of interior volume of a vehicle. 5.A high-quality experimental data set was generated with 6.acoustic data describing buffeting behaviour, 7.quantitative flow-field visualisation confirming fluid-acoustic mechanisms and is therefore 8.well-suited for CFD validation of both acoustics and hydrodynamics.