Compressor Stator Vane Airfoil Coordinate Optimization
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Solution Overview
Problem
Conventional airfoil designs for compressor stator vanes in gas turbines suffer from aerodynamic inefficiencies, leading to performance losses and reduced system efficiency in power generation.
Innovation Solution
The airfoil shape is defined by specific Cartesian coordinate values in Tables I-VIII, which when connected by smooth arcs, form a nominal profile that enhances aerodynamic efficiency by optimizing the suction-side and pressure-side surfaces, thereby improving energy transfer and fluid interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional airfoil designs are used for compressor stator vanes, then manufacturing and design simplicity is maintained, but aerodynamic efficiency is reduced leading to performance losses
Solution Approach 1:
The patent applies parameter changes by precisely modifying the geometric parameters of the airfoil profile through specific Cartesian coordinate values. The optimized coordinates define the suction-side and pressure-side surfaces, creating a tailored airfoil shape that reduces aerodynamic losses while maintaining manufacturability through systematic parameter optimization rather than fundamental design changes.
Solution Approach 2:
The patent implements local quality by optimizing specific regions of the airfoil profile through differentiated coordinate specifications. The suction-side and pressure-side surfaces are independently defined with precise coordinate points, allowing localized optimization of flow characteristics in different regions of the airfoil while maintaining overall structural integrity.
2Productivity
If optimized airfoil shapes with specific coordinate profiles are implemented, then aerodynamic efficiency and power generation are improved, but design and manufacturing precision requirements increase
Solution Approach 1:
The patent provides specific Cartesian coordinate values that define the optimized airfoil profile, enabling precise reproduction of the design through parameter specification. The detailed coordinate data allows manufacturing systems to achieve the required precision through controlled parameter implementation, balancing the need for high accuracy with practical manufacturing capabilities.
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
The optimized airfoil shape enhances aerodynamic efficiency, leading to improved performance and reduced losses in the compressor section of gas turbines, resulting in increased power generation and system efficiency.
Implementation Method 1
These airfoils are configured to aerodynamically interact with the fluid flows and to transfer energy to or from these fluid flows
Data Source
AI summary
A stator vane includes an airfoil having an airfoil shape. The airfoil shape has a nominal profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in one of Table I, Table II, Table III, Table IV, Table V, Table VI, Table VII, or Table VIII. The Cartesian coordinate values of X, Y and Z are non-dimensional values from 0% to 100% convertible to dimensional distances expressed in a unit of distance by multiplying the Cartesian coordinate values of X, Y and Z by a scaling factor of the airfoil in the unit of distance. The X and Y values, when connected by smooth continuing arcs, define airfoil profile sections at each Z value. The airfoil profile sections at Z values are joined smoothly with one another to form a complete airfoil shape.