Changes between Version 29 and Version 30 of doc/app/wind_turbine_parameters

Timestamp:

May 12, 2020 2:23:08 PM (5 years ago)

Author:

oliver.maas

Comment:

--

doc/app/wind_turbine_parameters

@@ -5 +5 @@
 
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-
-An introduction into the model will follow here. '''The influence of the nacelle on the flow is currently disabled due to segmentation faults on the FLOW HPC cluster (Oldenburg) ''' 
+Input files for the NREL 5 MW and 15 MW Reference Wind Turbines can be found at https://palm.muk.uni-hannover.de/trac/browser/palm/trunk/DATA\\\\
+'''The influence of the nacelle on the flow is currently disabled due to segmentation faults on the FLOW HPC cluster (Oldenburg) ''' 
 
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@@ -422 +422 @@
 Size of the smearing kernel given as multiples of the grid spacing [#dx dx].\\\\
 For details refer to https://palm.muk.uni-hannover.de/trac/wiki/doc/tec/wtm \\\\
-A large smearing kernel results in a too high tip speed ratio and power output. For coarse grid spacings (e.g. 12 grid points per rotor diameter) the power overestimation can be as large as 25 %. This error can be reduced by setting the smearing_kernel_size to 1.0 dx. Do not use values below 1, because the number of grid cells inside the smearing kernel becomes very small (<10). In this case the sum of the body forces acting on the flow may be lower than the force acting on the rotor blade.
+A large smearing kernel results in a too high tip speed ratio and power output. For coarse grid spacings (e.g. 12 grid points per rotor diameter) the power overestimation can be as large as 25 %. This error can be reduced by setting the smearing_kernel_size to 1. Do not use values below 1, because the number of grid cells inside the smearing kernel becomes very small (<10). In this case the sum of the body forces acting on the flow may be lower than the force acting on the rotor blade.
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