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.![Smile](https://www.cfd-online.com/Forums/images/smilies/smile.gif)
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.
![Smile](https://www.cfd-online.com/Forums/images/smilies/smile.gif)
The current max courant no. is 0.087.
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