Bladed - Zero Blade Deflection

Zero Blade Deflection

Wind turbine blades typically deflect during operation and this results in reduction in generated electrical power. We will use a steady wind field to examine the effect of blade deflection on generated electrical power.

Start-up

Double click on the Bladed icon to launch GH Bladed.

The red circles next to each calculation and simulation in the calculation window indicate none of the required input parameters are defined. The yellow circle indicates that only a part of the required inputs are defined for a given simulation. Green circle indicates all the inputs are fully defined and the simulation is ready to be carried out.

We will fist load a demo project and then adjust the desired parameters. The demo project should be in the Bladed directory.

File > Open Project > demo_a.prj

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 with a mean speed of 11 m/s. Change the option to No Variation and change the Mean wind speed to 11 m/s. Click on Apply to save the changes.

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