Downwind power generation blades

What is the design framework for downwind wind turbine blades?

In fact, these are often found to be driving the design of downwind wind turbine blades and, therefore, should be part of the design process. The design framework adopted in the present investigation is Cp-Max, whose detailed description is reported in Bortolotti et al. (2016, 2018) and references therein.

What is a downwind wind turbine?

A downwind wind turbine is a type of wind turbine designed to respond to high winds and gyroscopic precession, allowing for automatic control of the rotor speed. It features an innovative floating tower and foundation concept. The downwind turbine consists of elastically flexible rotor blades.

Are two-bladed downwind rotors a good idea?

Novel two-bladed downwind concept turbines are also being considered in hopes of further reducing rotor mass relative to existing concept designs. A series of two-bladed downwind rotors was designed and optimized (Yao et al., 2021), which resulted in designs with 25% mass reduction and 25% LCOE reduction.

What is the purpose of a downwind blade?

The main purpose of the downwind layout of the blades is to reduce the flapping bending moment of the blades and avoid collision with tower; moreover, via this design, the weight of the blades will also decrease. Therefore, the minimum flapping bending moment of the blade root is one of the optimization objectives.

Do downwind configurations reduce blade mass and cost?

Within this trend, downwind configurations appear to be able to successfully limit the growth in blade mass and cost. This effect is generated by the relaxed tower clearance constraint, which is instead a critical design driver for the UW and UW5 designs.

How are wind turbine blades designed?

The design of wind turbine blades is not an independent process, and involves aerodynamics, the blade structure, and many other aspects.