Compressor Stator Vane Chord Length Variation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Gas turbine engines face limitations in airflow and efficiency due to the design of traditional airfoil profiles, which restrict the amount of air that can be compressed and converted into power.
Innovation Solution
A novel airfoil profile for stator vanes with a decreased chord length towards the tip and an increased chord length at the root, complemented by a corresponding adjustment in rotor blades, to enhance airflow and compressor performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional airfoil profiles are used, then the design is simple and manufacturing is easier, but airflow and compressor efficiency are limited
Solution Approach 1:
The airfoil profile employs different chord lengths at different radial positions along the span. The root section has a longer chord length to capture more air and increase mass flow, while the tip section has a shorter chord length to reduce drag and maintain structural integrity. This localized variation in geometry optimizes airflow characteristics at each section, resolving the contradiction between increased productivity and design complexity.
2Productivity
If the chord length of stator vane is decreased towards the tip, then airflow is increased, but the surface area of the stator vane is reduced
Solution Approach 1:
The invention changes the geometric parameter of chord length as a function of radial position along the stator vane span. By continuously varying the chord length from root to tip according to an optimized profile, the design achieves enhanced airflow capacity while maintaining sufficient surface area for effective air capture and compression.
3Quantity of substance
If the surface area of rotor blade is increased at the root, then more air can be captured, but the complexity of the blade design increases
Solution Approach 1:
The rotor blade design implements local quality by increasing the chord length specifically at the root section where air capture is most critical, while maintaining appropriate dimensions at other sections. This localized area enhancement focuses the increased surface area where it provides maximum benefit for air intake, resolving the contradiction between capturing more air and maintaining design simplicity.
Data Source
AI summary
A compressor component having an airfoil with a profile in accordance with Table 1 is disclosed. The compressor component, such as a compressor vane, has a decreased surface area over a portion of the airfoil chord length. The decreased surface area compressor vane operates in conjunction with a compressor blade having an increased surface area.