Since non-Newtonian fluids were discovered, their numerous interesting behaviours and potential uses have been investigated. Particularly, the frequency-dependent properties of wormlike micellar solutions have risen a good deal of interest among the scientific community. In this report, we have attempted to simulate those properties using the Giesekus model for viscoelastic fluids and, more precisely, we have tried to obtain a velocity profile with resonant behaviour inside a cylinder cavity. The computational environment chosen to perform the simulations is OpenFOAM, an open-source CFD program with great flexibility and capabilities. The results confirm a resonant response to oscillating boundary conditions, although perfect stationary-like velocity profiles were not obtained. 2019/2020