Wind Farm Flow Simulation 2
Posted October 6, 2016 at 12:12 by windsimu
I calculated the courant no.
The maximum velocity is approximately 18m/s at the top. and if the time step is 0.15s, the courant no. is 1.08 (dx = 2.5m). So the time step indeed should be decreased. But the time step in the last step is 0.015s, the courant no. is 0.108. It is pretty small. So I slightly increased the time step to 0.05s. I got 1000s physical time after 1 day, so I expect I can get 300-400s physical time after 1 day running.
The maximum velocity is approximately 18m/s at the top. and if the time step is 0.15s, the courant no. is 1.08 (dx = 2.5m). So the time step indeed should be decreased. But the time step in the last step is 0.015s, the courant no. is 0.108. It is pretty small. So I slightly increased the time step to 0.05s. I got 1000s physical time after 1 day, so I expect I can get 300-400s physical time after 1 day running.
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