Retractable Vortex Generators on Aerodynamic Surfaces
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Solution Overview
Problem
Existing vortex generators, particularly those in the form of vanes, are not retractable and consistently increase drag, making them unsuitable for high-speed applications and lacking integration with other aerodynamic devices like leading-edge slats or flaps for optimal performance.
Innovation Solution
The integration of vortex generation means with leading-edge and trailing-edge aerodynamic surfaces, utilizing mechanical, pneumatic, or semi-rigid structures that can be deployed and retracted, allowing vortex generation only when needed, thus avoiding unnecessary drag.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vortex generators are made non-retractable to ensure continuous vortex generation, then vortex generation reliability is improved, but drag increases consistently
Solution Approach 1:
The vortex generator is designed with movable components that can transition between deployed and retracted positions based on flight conditions. The device includes a mounting structure with a movable arm or vane that can be positioned to generate vortices when needed and retracted when not needed, allowing dynamic adaptation to changing aerodynamic requirements and minimizing unnecessary drag.
Solution Approach 2:
The invention changes the operational parameters of the vortex generator by allowing it to be deployed only when specific aerodynamic conditions require vortex generation. The system can adjust the angle, position, and deployment status of the vortex generator components based on flight speed, angle of attack, and other parameters, transforming it from a static always-on device to a condition-based active device.
2Loss of energy
If vortex generators are made retractable to reduce drag, then energy loss is reduced, but device complexity increases
Solution Approach 1:
The invention merges the vortex generation function with existing aerodynamic surfaces or control mechanisms. The vortex generator is integrated with the wing, fin, or other aerodynamic components, sharing mounting structures and control systems. This integration reduces the need for separate dedicated deployment mechanisms and minimizes overall system complexity while maintaining retractability.
Solution Approach 2:
The vortex generator system is designed to serve multiple functions: vortex generation, drag reduction, and integration with existing aerodynamic controls. The same structural components that provide vortex generation capability also serve as mounting structures or control surfaces, allowing the device to perform multiple roles and reducing the need for additional specialized mechanisms.
3Device complexity
If vortex generators are made stand-alone non-adjustable to simplify design, then device complexity is reduced, but adaptability to different conditions deteriorates
Solution Approach 1:
The invention introduces dynamic adjustability to the vortex generator system, allowing parameters such as angle of attack, position, and deployment status to be modified based on flight conditions. The device can adapt its configuration in response to changing aerodynamic requirements, transitioning from a fixed stand-alone design to a dynamically adjustable integrated system that optimizes performance across various operating conditions.
4Reliability
If vortex generators are integrated with leading-edge slats or flaps to improve aerodynamic performance, then aerodynamic effectiveness is improved, but device complexity increases
Solution Approach 1:
The invention combines the vortex generation function with leading-edge slats, flaps, or other aerodynamic surfaces by integrating the vortex generator into the same structural framework. The merged system shares common mounting structures, control mechanisms, and aerodynamic surfaces, allowing vortex generation to be achieved through existing aerodynamic components rather than adding separate integrated systems.
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
This solution enables vortex generation on demand, reducing drag when not in use and enhancing aerodynamic performance across various speed conditions, making it suitable for both low-speed and high-speed vehicles.
Implementation Method 1
An apparatus for vortex generation is disclosed which combines the function of means for vortex generation with the functions of the leading-edge aerodynamic surface, the airfoil, and/or the trailing-edge aerodynamic surface
Data Source
AI summary
This invention is an apparatus for vortex generation by combining the function of means for vortex generation with the functions of the leading-edge aerodynamic surface, the airfoil, and/or the trailing-edge aerodynamic surface.