dataset_info:
- config_name: geometry
features:
- name: node_coordinates_x
list: float64
- name: node_coordinates_y
list: float64
splits:
- name: default
num_bytes: 727176
num_examples: 1
download_size: 439534
dataset_size: 727176
- config_name: parameters
features:
- name: angle_of_attack
dtype: float64
splits:
- name: default
num_bytes: 800
num_examples: 100
download_size: 1465
dataset_size: 800
- config_name: snapshots
features:
- name: pressure
list: float64
- name: velocity
list: float64
splits:
- name: default
num_bytes: 72717600
num_examples: 100
download_size: 49385445
dataset_size: 72717600
configs:
- config_name: geometry
data_files:
- split: default
path: geometry/default-*
- config_name: parameters
data_files:
- split: default
path: parameters/default-*
- config_name: snapshots
data_files:
- split: default
path: snapshots/default-*
Airfoil Transonic Flow - Internal Domain Dataset
Dataset Description
This dataset contains transonic flow simulations around an airfoil, focusing on internal flow field quantities with varying angle of attack.
Dataset Summary
The Airfoil Transonic Internal dataset provides numerical simulations of compressible transonic flow around an airfoil profile. The dataset focuses on aerodynamic quantities in the flow field surrounding the airfoil, including pressure and velocity distributions in the computational domain, making it valuable for flow field analysis, aerodynamic research, and machine learning applications in computational fluid dynamics.
Dataset Structure
Data Instances
The dataset consists of three configurations:
- geometry: Internal domain node coordinates
- snapshots: Flow field solutions in the domain
- parameters: Flow condition parameters (angle of attack)
Data Fields
Geometry Configuration
node_coordinates_x: Sequence of x-coordinates of internal domain nodes (float64)node_coordinates_y: Sequence of y-coordinates of internal domain nodes (float64)
Snapshots Configuration
pressure: Pressure field in the internal domain (float64)velocity: Velocity magnitude field in the internal domain (float64)
Parameters Configuration
angle_of_attack: angle of attack for each simulation (float64)
Data Splits
default: Contains all simulations with varying angle of attack
Dataset Creation
Source Data
The dataset was generated using computational fluid dynamics simulations of the Euler equations for compressible transonic flow around an airfoil. The simulations capture the complex flow phenomena in the transonic regime, including shock waves and expansion regions.
Preprocessing
Internal domain quantities (flow field around the airfoil, excluding the boundary) are included in this dataset. Solutions are stored as 1D arrays corresponding to the nodes in the computational mesh.
Usage
from datasets import load_dataset
import numpy as np
import matplotlib.pyplot as plt
# Load geometry
ds_geom = load_dataset("SISSAmathLab/airfoil-transonic-internal", name="geometry")
# Load snapshots
ds_data = load_dataset("SISSAmathLab/airfoil-transonic-internal", name="snapshots")
# Load parameters
ds_params = load_dataset("SISSAmathLab/airfoil-transonic-internal", name="parameters")
# Visualize pressure field in internal domain
pts_x = np.asarray(ds_geom['default']['node_coordinates_x']).flatten()
pts_y = np.asarray(ds_geom['default']['node_coordinates_y']).flatten()
pressure = ds_data['default']['pressure'][0]
angle_of_attack = ds_params['default']['angle_of_attack'][0]
plt.figure(figsize=(12, 6))
plt.scatter(pts_x, pts_y, c=pressure, cmap='RdBu_r', s=1, alpha=0.6)
plt.colorbar(label='Pressure')
plt.title(f'Airfoil Flow Field (angle of attack={angle_of_attack:.2f})')
plt.xlabel('x')
plt.ylabel('y')
plt.axis('equal')
plt.grid(True, alpha=0.3)
plt.show()
Related Datasets
See also: Airfoil Transonic Boundary dataset for aerodynamic quantities specifically at the airfoil surface.