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OneScience-Group/airfrans

AirfRANS Dataset Description AirfRANS is a high-fidelity two-dimensional airfoil CFD dataset introduced in a paper from the NeurIPS 2022 Datasets and Benchmarks Track. The data is intended for surrogate modeling of the incompressible steady-state Reynolds-averaged Navier-Stokes (RANS) equations and contains 1,000 subsonic airfoil simulation cases. The cases cover NACA four-digit and five-digit airfoils, with Reynolds numbers ranging from 2 million to 6 million and… See the full description on the dataset page: https://huggingface.co/datasets/OneScience-Group/airfrans.

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<p align="center"> <strong> <span style="font-size: 30px;">AirfRANS</span> </strong> </p>

Dataset Description

AirfRANS is a high-fidelity two-dimensional airfoil CFD dataset introduced in a paper from the NeurIPS 2022 Datasets and Benchmarks Track. The data is intended for surrogate modeling of the incompressible steady-state Reynolds-averaged Navier-Stokes (RANS) equations and contains 1,000 subsonic airfoil simulation cases.

The cases cover NACA four-digit and five-digit airfoils, with Reynolds numbers ranging from 2 million to 6 million and angles of attack ranging from -5° to 15°.

Paper: AirfRANS: High Fidelity Computational Fluid Dynamics Dataset for Approximating Reynolds-Averaged Navier–Stokes Solutions

Supported Tasks

ScenarioDescription
CFD surrogate modelingPredict flow fields from airfoil geometry, boundary conditions, and fluid parameters.
Full-data trainingLearn airfoil flow behavior using the complete training set.
Data-scarce trainingPerform surrogate modeling with a limited number of training cases.
Parameter extrapolation evaluationEvaluate model generalization to unseen Reynolds numbers or angles of attack.

Dataset Format and Structure

The data is organized by case:

text
data/Dataset/
  manifest.json
  <case>/
    <case>_internal.vtu
    <case>_freestream.vtp
    <case>_aerofoil.vtp

Each case contains a volume mesh, far-field boundary data, and airfoil surface data:

FileVTK TypeMain FieldsDescription
<case>_internal.vtuUnstructuredGridU, p, nut, implicit_distanceVolume-domain velocity, pressure, turbulent kinematic viscosity, and implicit distance.
<case>_freestream.vtpPolyDataU, p, nutFar-field boundary flow data.
<case>_aerofoil.vtpPolyDataNormals, U, p, nutAirfoil surface normals and flow data.

manifest.json records the dataset splits for tasks such as full, scarce, reynolds, and aoa. The VTK files use XML format, and mesh sizes vary by case.

How to Use the Dataset

This dataset has been adapted for the OneScience-Group/Transolver-Airfoil-Design model. Download the dataset and model:

bash
hf download --dataset OneScience-Group/airfrans --local-dir ./data

Official OneScience Information

PlatformOneScience Main RepositorySkills Repository
Giteehttps://gitee.com/onescience-ai/onesciencehttps://gitee.com/onescience-ai/oneskills
GitHubhttps://github.com/onescience-ai/OneSciencehttps://github.com/onescience-ai/oneskills

Citation and License