Wind Farm Flow Simulation 1
Posted October 6, 2016 at 10:43 by windsimu
I run a simulation case from NREL in OpenFOAM 2.1.1 (3km*3km*1km). I would like to use this case and solver (ABLSolver) to simulate the flow field in wind farm. I refined a region for wind turbine in this case (detx=2.5m).
The case works pretty well before 3035s. From 3035s, the max courant no. increased instantly from 0.75 to 2.6e+25. I used adaptive time step and the maximum time step is set to be 0.5 (it is normally 0.15 because of max courant no.) and maximum courant no. is 0.75. I am now trying maximum time step 0.015s with maximum courant no. 0.1. I hope it will work well.
The current max courant no. is 0.087.
The case works pretty well before 3035s. From 3035s, the max courant no. increased instantly from 0.75 to 2.6e+25. I used adaptive time step and the maximum time step is set to be 0.5 (it is normally 0.15 because of max courant no.) and maximum courant no. is 0.75. I am now trying maximum time step 0.015s with maximum courant no. 0.1. I hope it will work well.
The current max courant no. is 0.087.
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