Airfoil Aerodynamic Simulations at Multiple Angles and Reynolds Numbers

Over 250,000 Computational Fluid Dynamics simulations provide aerodynamic data for 1,830 airfoil shapes. The dataset includes flow field values like momentum and vorticity, plus summary coefficients of lift, drag, and momentum, computed across 25 angles of attack and three Reynolds numbers. It was generated in 2023 using the HAM2D RANS solver as a benchmark for AI/ML tools in wind energy research.

Use Cases

• Train surrogate models to predict coefficients of lift and drag from airfoil shape parameters and angle of attack.
• Analyze flow field values like momentum and vorticity to understand separation behavior across different Reynolds numbers.
• Use the 1,830 sampled airfoil shapes to benchmark generative models for aerodynamic shape design.
• Develop models to interpolate aerodynamic performance between the 25 simulated angles of attack for rapid analysis.

Strengths

• Large-scale dataset of over 250,000 high-fidelity CFD simulations.
• Systematic parameter sweep across 1,830 shapes, 25 angles of attack, and 3 Reynolds numbers (3M, 6M, 9M).
• Derived from a learned parameter space based on a database of over 19,000 airfoil shapes, capturing wide shape variation.
• Simulations performed with a detailed, documented CFD setup including specific turbulence and transition models.

Limitations

• No column schema or sample data is provided, making initial data exploration and parsing challenging.
• Data is static from a single simulation campaign in early 2023, not updated with new designs or conditions.
• Focus is on subsonic flow (Mach 0.1) and specific turbulence modeling, limiting generalizability to other flight regimes.

Provenance

Source

U.S. Department of Energy (INTEGRATE and Foundational AI for Wind Energy projects).

Collection Method

Generated via HAM2D finite-volume RANS CFD simulations on the Bridges-2 supercomputing system.

Time Range

Simulation date: February 2023.

Freshness

Simulations performed February 2023; data preprocessed and published July 2023; metadata last updated January 2024.