AirfoilMNIST: A Large-Scale Dataset based on Two-Dimensional RANS Simulations of Airfoils

AirfoilMNIST is a dataset of two-dimensional, RANS-based flow fields for NACA 4- and 5-series airfoils. The dataset consists of around 148,000 simulations for Mach numbers up to 0.6 and angles of attack ranging from −5 ≤ α ≤ 15.
The dataset is divided into five subsets:
- AirfoilMNIST-raw: Raw CFD output from the NacaFOAM pipeline. Size: 3.5TB.
- AirfoilMNIST: Preprocessed version of AirfoilMNIST-raw subset. Size: 500GB.
- AirfoilMNIST-incompressible: Subset of AirfoilMNIST with samples with M < 0.3. Total samples: 78,010. Size: 50GB.- BluffBodyExtension-raw: Raw CFD output from the BluffFOAM pipeline with 11,760 samples. Size: 125GB.
- BluffBodyExtension: Preprocessed version of BluffBodyExtension-raw subset. Size: 12GB
Preprocessed subsets have been interpolated onto a 256x256 uniform grid. For every combination of geometry and angle of attack, one random velocity is put in the test split.