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The wing tip vortex has a great similarity with the swirling jets. Since these are generated of a simpler and more economic form in a laboratory, it is relevant to determine which the best method is for the generation of the swirling jet. In this paper, the velocity distribution obtained experimentally with the method of generation here proposed, which consists of the employment of an axial fan without stators, is compared with the velocity distribution of swirling jets generated with three different methods. It is observed that the velocity distribution obtained with the proposed method is similar with one of the methods found in the references, which uses fixed blades guides at the entry of the pipe. The proposed method is suitable for the generation of the swirling jet and it is considered that it is simpler and more economic to use blades fixed guides.

The Swirling Jet Generation Method and Its Effect on the Velocity Distribution