For the 3D simulation, two turbulent models were given to us : OES model and DDES k omega-SST model.

*Figure 2.2 – 3D Visualization with kw SST model*

We have tested these two models to study the differences, the aim is to perform the 2D study on these 3D cases and follow the Kelvin-helmholtz structures.

*Figure 2.3 – Slice on q criterion on the 3D model*

We could represent the pressure coefficient around the second cylinder by using :

Then, we can plot the pressure coefficient around the second cylinder compared with NASA results :

*Figure 2.4 – Pressure coefficient around the second cylinder compared with NASA results*