[toni_rt]

I'm using the SST k-omega turbulence model to simulate some cylinders in crossflow in a rectangular channel. Disregarding the wall effects and the cylinder-to-cylinder interaction, I should see a shedding frequency of approximately 3kHz at the current Reynolds number (1e5). I'm just using a pressure inlet and outlet. First, I run the steady solver until there is convergence. Then, I run the 1st order unsteady solver with an adequate timestep (10 times smaller than the theoretical shedding period). The problem is that I cannot trigger the shedding, and even with a different solution initialization, the oscillations seem to dampen out. The unsteady solution in time looks just like the steady one. Based on the previous posts on this forum I understand it will be difficult to replicate the expected frequency, but at least I should be able to see it. Do you have any recommendations on how I can tweak the model to sustain the vortex street? I'm attaching some screenshots and the fluent settings summary. Thank you!