**2.3.6 Conclusion**

Obtained results can define suggestions for the future solution improvement. Firstly, by incorporating the transonic flow calculations, the advancing blade tip simulation would be more appropriate. Secondly, viscous interaction should be included as well, which would improve the wake roll-up simulation. The viscous vortex core simulation in time would improve the results concerning the wake vanishing effects far enough from the blade. Finally, introduction of the curvilinear vortex elements would give better results from the aspect of wake self-induction. With these enhancements, this solution should prove to be a useful and efficient tool to the rotorcraft performance evaluation.
