Dataset Viewer
The dataset viewer is not available for this dataset.
Cannot get the config names for the dataset.
Error code:   ConfigNamesError
Exception:    TypeError
Message:      Value.__init__() missing 1 required positional argument: 'dtype'
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/dataset/config_names.py", line 67, in compute_config_names_response
                  config_names = get_dataset_config_names(
                      path=dataset,
                      token=hf_token,
                  )
                File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 161, in get_dataset_config_names
                  dataset_module = dataset_module_factory(
                      path,
                  ...<4 lines>...
                      **download_kwargs,
                  )
                File "/usr/local/lib/python3.14/site-packages/datasets/load.py", line 1217, in dataset_module_factory
                  raise e1 from None
                File "/usr/local/lib/python3.14/site-packages/datasets/load.py", line 1192, in dataset_module_factory
                  ).get_module()
                    ~~~~~~~~~~^^
                File "/usr/local/lib/python3.14/site-packages/datasets/load.py", line 700, in get_module
                  config_name: DatasetInfo.from_dict(dataset_info_dict)
                               ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/info.py", line 284, in from_dict
                  return cls(**{k: v for k, v in dataset_info_dict.items() if k in field_names})
                File "<string>", line 20, in __init__
                File "/usr/local/lib/python3.14/site-packages/datasets/info.py", line 170, in __post_init__
                  self.features = Features.from_dict(self.features)
                                  ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/features/features.py", line 1993, in from_dict
                  obj = generate_from_dict(dic)
                File "/usr/local/lib/python3.14/site-packages/datasets/features/features.py", line 1574, in generate_from_dict
                  return {key: generate_from_dict(value) for key, value in obj.items()}
                               ~~~~~~~~~~~~~~~~~~^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/features/features.py", line 1593, in generate_from_dict
                  return class_type(**{k: v for k, v in obj.items() if k in field_names})
              TypeError: Value.__init__() missing 1 required positional argument: 'dtype'

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ShapeNetCar

Dataset Description

The ShapeNetCar dataset comes from the paper Learning Three-dimensional Flow for Interactive Aerodynamic Design by Umetani and Bickel, published in ACM Transactions on Graphics (SIGGRAPH 2018). Based on three-dimensional car geometries from ShapeNet, the dataset uses CFD simulations to obtain velocity fields around the vehicles, surface pressure, and drag coefficients. It supports research on rapidly predicting aerodynamic physical fields and forces from three-dimensional geometry.

Supported Tasks

This standardized data repository is organized for the ShapeNetCar external flow field prediction task. It contains raw training data, preprocessed graph data, normalization statistics, linear regression utility code, paper figure and table data, and result comparison plots. It can be used for training, inference, evaluation, and visualization with the OneScience/Transolver-Car-Design model. This repository contains 889 car geometry samples grouped from param0 through param8. It retains the raw CFD arrays, meshes, and VTK files while also providing preprocessed samples for graph neural network models. Each preprocessed sample consists of node features, target physical fields, three-dimensional coordinates, a surface mask, and graph edge indices.

Dataset Format and Structure

In the preprocessed graph data, each preprocessed_data/param*/<sample_id>/ directory contains:

File shape dtype Description
x.npy [num_nodes, 7] float64 Node input features, including position, signed distance function (SDF), normals, and other features
y.npy [num_nodes, 4] float64 Target physical fields; the first three channels are velocity components and the last channel is pressure
pos.npy [num_nodes, 3] float32 Three-dimensional node coordinates
surf.npy [num_nodes] float64 Surface node mask
edge_index.npy [2, num_edges] int64 Edge indices of the graph structure

Normalization statistics files are located in stats/:

File shape dtype Description
mean_in.npy [7] float32 Mean of the input features
std_in.npy [7] float32 Standard deviation of the input features
mean_out.npy [4] float32 Mean of the output physical quantities
std_out.npy [4] float32 Standard deviation of the output physical quantities

How to Use the Dataset

This dataset is compatible with the OneScience-Group/Transolver-Car-Design model. At runtime, scripts in the model package can organize the data from this repository under data/.

  • Files and Download:
hf download --dataset OneScience-Group/ShapeNetCar --local-dir ./data

Official OneScience Information

Citation and License

  • This dataset is organized or converted from the ShapeNetCar three-dimensional aerodynamic flow field data released by Nobuyuki Umetani and Bernd Bickel. When using it, please cite the original ShapeNetCar paper: Learning Three-dimensional Flow for Interactive Aerodynamic Design
  • If this dataset is used to reproduce the Transolver car aerodynamic design experiments, please also cite the original Transolver paper: Transolver: A Fast Transformer Solver for PDEs on General Geometries
  • This repository retains source attribution and is organized for automated OneScience ModelScope execution scenarios. Before public distribution, please verify the license requirements of the upstream project.
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Paper for OneScience-Group/ShapeNetCar