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Effect of Timestep on Solution

In order to effectively capture the vortex shedding, a small enough timestep was needed. It was recommeded to have roughly 20 - 25 timesteps per cycle hence we used a timestep of .2. The resulting plot in the numerical results showing how the lift coefficient oscillated due to the vortex shedding is shown below. To compare the effect of the timestep size, there is also a plot of a timstep of 1, where we see no oscillations in the lift coefficient and instead only see a smooth curve. 

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Timestep = .2 s

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Timestep = 1s

Strouhal Number Comparison

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