brunofunk

Hi, I'm looking for ways to automate the following within WAsP: 1. Update the analysis heights of each WRG and RSF automatically rather than manually changing the height of each. 2. Export all production and wake output reports automatically as opposed to manually exporting them in HTML/Word one at a time. 3. Is it possible to have the UTM coordinates pulled from a TAB file and have those automatically filled in for the met station and point file? Any ideas how to do these are welcome. Thanks in advance!

I totally agree.

Duncan, thanks for the answer. The project is over a homogeneous forest. I estimated it with 15m tree height. 15*0.1=1.5 which is close to the 1.6m value I estimated before. I feel more confident about using other than 0.5m roughness length for forests!

Hi Duncan, Let me rephrase: I have a 60m lattice tower in the middle on a complex site with 15m trees all over - Avg 6m/s. Applying a displacement height of 10m, I reach a 0.26 shear factor. In order to match the WAsP self-prediction at 95m-10m with estimated average wind speeds at 95m - 6.8-6.9 m/s - I need to use a roughness length of 1.6 .But it is known that forested regions should have a roughness length of 0.5m. What should I use 1.6m or 0.5m? Using a roughness length of 1.6m the estimated AEP is much higher, as WAsP needs to "clean the wind much more" from the forest effects when compared with the 0.5m scenario.

Duncan, I have a 60m lattice tower in the middle on a complex site with 15m trees all over - Avg 6m/s. Applying a displacement height of 10m, I reach a 0.26 shear factor. In order to match the WAsP selfprediction at 95m-10m with estimated average wind speeds at 95m - 6.8-6.9 m/s - I need to use a roughness class of 4.But it is known that forested regions should have a roughness class of 3.1-3.2. What should I use 3.2 or 4? Using a roughness 4 the estimated AEP is much higher, as WAsP needs to clean much more the wind from the forest effects.