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Zero Blade Deflection with Steady Wind
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We will fist load a demo project and then adjust the desired parameters. The demo project should be in the Bladed directory. This demo project simulates a 2MW wind turbine.
File > Open Project > demo_a.prj
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One interesting and convenient feature in GH Bladed is the built-in MATLAB model that allows the users to see the wind turbine. This feature is available when all the required physical parameters (blade and tower geometry, nacelle, etc) are fully defined. Since the demo wind turbine is fully defined, we will use this feature to visualize it. Click on the rotor icon,
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The demo project uses a pre-defined turbulence wind file. We will change the wind characteristic to steady. Click on 
to edit the wind characteristic. The default wind is set to 3D Turbulent Wind with a mean wind speed of 12 m/s. This turbulent wind is defined in the demo wind file. For our case, we will use a steady wind of 11 m/s. Change the option to No Variation and change the Wind speed to 11 m/s. Change the Flow inclination to 0 degrees. Click on Apply to save the changes.
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GH Bladed performs modal analysis based on the defined blade stiffness. The modes are used to predict blade deflection. Thus, we can eliminate the blade modes to simulate zero blade deflection. Double click on Modal Analysis.
Change the number of blade modes to 0. Click OK to close the Modal Analysis Parameters window.
Simulation
We will run Start simulation because it simulates the start up response of a wind turbine. Highlight Start, and click on Run Now.
A warning message will appear. This message appears because we have changed the blade modes. Click on Yes to update the modal analysis to proceed.
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Save the simulation result in the Bladed result folder (bladed 4.1\results). Name it startup_no_blade_deflection. Close the Calculation Progress window when the run is completed.
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Select "startup_no_blade_deflection" under Run Name. Select Summary information in Data Group. Select Electrical power for Variables. The electrical power will be plotted against time. Click on OK to finish data selection.
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Click on Channel 2 and change the path to the desktop to find "demo_steady_wind_11". Make sure "demo_steady_wind_11" appears under Run Name. Select summary information and electrical power, as shown in the previous step.
Channel 1 displays the electrical power produced by the demo turbine without blade deflection. Channel 2 displays the electrical power produced by the demo turbine with blade deflection. Click on View Graph, and you should get something like this:
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We can check if the blades in our setup deflect or not for "demo_steady_wind_11" . Select Blade 1 Deflections in Data Group. Select Blade 1 x-deflection for Variables. Select Time for Independent Variables.
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