Vortex Generator Orientation Marks for Wind Turbine Blade Mounting
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Solution Overview
Problem
Existing vortex generators for wind turbine blades lack a specific configuration for accurate mounting at a predetermined angle relative to the wind inflow direction, leading to unstable vortex generation and insufficient improvement in aerodynamic performance.
Innovation Solution
A vortex generator with a platform portion and fins, featuring marks on opposite positions of the platform to indicate orientation, allowing for precise adjustment and mounting at a suitable angle relative to the wind turbine blade, ensuring accurate alignment with the wind inflow direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a vortex generator is mounted without specific orientation marks, then the mounting process is simpler, but the mounting angle accuracy deteriorates leading to unstable vortex generation
Solution Approach 1:
Orientation marks are pre-disposed on the platform portion at specific positions (e.g., 0°, 45°, 90°, 135° relative to the fin's chordwise direction) during manufacturing. These marks serve as preliminary guides that enable accurate mounting angle adjustment without requiring complex mounting equipment or procedures, thus improving mounting angle accuracy while maintaining结构简单性.
2Reliability
If orientation marks are added to the platform portion, then the vortex generation stability improves, but the manufacturing complexity increases
Solution Approach 1:
The orientation marks can be implemented as visual indicators such as painted marks, colored regions, or contrast-marked areas on the platform portion. This allows the marks to be clearly visible for mounting alignment while being simple to apply during manufacturing (e.g., through painting or molding), thus improving vortex generation stability without significantly increasing manufacturing complexity.
3Measurement precision
If the platform portion has a non-circular shape, then the mounting position specification is more precise, but the ease of positioning deteriorates
Solution Approach 1:
The platform portion employs a circular shape in plan view, which is symmetric rather than asymmetric. This symmetric circular design simplifies positioning operations by providing uniform radial symmetry, making it easier to align and position the vortex generator on the blade surface. The mounting angle precision is achieved through orientation marks rather than through asymmetric platform geometry, thus improving positioning ease while maintaining measurement precision through the mark system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables stable vortex generation and improved aerodynamic performance by ensuring the vortex generator is mounted at an optimal angle, enhancing the efficiency of wind turbine operation.
Implementation Method 1
a fin disposed upright on the platform portion
Implementation Method 2
to suppress separation of a flow along the surface of the wind turbine blade
Data Source
AI summary
A vortex generator for a wind turbine blade includes: a platform portion to be fixed to a surface of the wind turbine blade; and at least one fin erected on the platform portion. The platform portion includes marks disposed on a pair of opposite positions in an outer edge region of the platform portion and indicating orientation of the vortex generator.