Jet engines are used to intake air for their operation, unfortunately the air ingested always has a non-uniformity that affects engine operation and performance. While total pressure distortions have been widely studied, the influence of swirl distortions on engine performance is less well understood. In order to analyse the interaction between swirl distortion and the engine, several methods have been created which are more or less accurate and complex. In this article a swirl distortion generation method, for a test bench, based on the use of vortex generators, more precisely of the Wishbone type, will be analysed computationally. The type of distortion of the vortex generator, the influence of the geometrical parameters on the generated distortion and the limits of this method will be defined.