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FluidVerse/2D_SDBA_SSOO

2D Shock-Induced Droplet Breakup in Air with Symmetric BC Description The dataset captures the time-evolving behavior of 2D cylindrical droplets subjected to an external shock wave in air. The interaction with the shock wave results in two different breakup modes namely SIE and RTP depending on the weber number. Here we investigate a scenario with symmetric boundary conditions at the north and south walls. About the data Metadata… See the full description on the dataset page: https://huggingface.co/datasets/FluidVerse/2D_SDBA_SSOO.

sourceHugging Facecc-by-nc-4.0updated 5mo agoView on Hugging Face
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Dataset Card

2D Shock-Induced Droplet Breakup in Air with Symmetric BC

Description

The dataset captures the time-evolving behavior of 2D cylindrical droplets subjected to an external shock wave in air. The interaction with the shock wave results in two different breakup modes namely SIE and RTP depending on the weber number. Here we investigate a scenario with symmetric boundary conditions at the north and south walls.

<div style="display:flex;justify-content:center;gap:20px;flex-wrap: wrap;"> <video style="width:100%;max-width:400px" src="https://huggingface.co/datasets/FluidVerse/2DSDBASSOO/resolve/main/SDBASSOOSIEMas1.20.mp4" loop autoplay muted controls></video> <video style="width:100%;max-width:400px" src="https://huggingface.co/datasets/FluidVerse/2DSDBASSOO/resolve/main/SDBASSOORTPMas2.00.mp4" loop autoplay muted controls></video> </div>

About the data

MetadataDescription
SolverALPACA
PDE2D compressible Euler equations
Dimension2D
Number of Trajectories300
Train-Test-Split0.8 - 0.2
Number of Timesteps101
Simulation End Time91 \\( \mu s \\) - 1240 \\( \mu s \\) (depending on the IC)
Save Interval0.91 \\( \mu s \\) - 12.40 \\( \mu s \\) (depending on the IC)
Fields- densitymixed <br/> - densitywater <br/> - densityair <br/> - pressure <br/> - velocityX <br/> - velocityY <br/> - volumefraction_water
Simulation Resolution1024x512 (Clipped and Downsampled)
Dataset Resolution512x512 & 256x256
Grid TypeCartesian Uniform Grid
Initial ConditionThe droplets are in equilibrium with the surrounding pre-shock environment.
Boundary ConditionsNorth: Symmetry <br/> South: Symmetry <br/> East: Open <br/> West: Open
Conditioning ParametersShock Mach Number [1.2 - 3.2] <br/> Weber Number [10 - 30 & 10k - 30k] <br/> Droplet Count [1 - 5] <br/> Droplet Radius [2mm - 3.5mm] <br/> Droplet Center Position [Random in Domain]

Further metadata information and channel-wise statistics can be found in the corresponding metadata.json file.

Key Challenges for Surrogate Modelling

  • —Distinguish breakup mode - RTP or SIE
  • —Accurate interface capturing
  • —Understanding wave dynamics
  • —Tracking droplet fragments
  • —Capture droplet interactions in the case of multi-droplets

How to Download the Dataset

Download the whole dataset:

hf download FluidVerse/2D_SDBA_SSOO --repo-type dataset

Download only part of the dataset with resolution 256x256:

from huggingface_hub import snapshot_download

snapshot_download(
    repo_id="FluidVerse/2D_SDBA_SSOO",
    repo_type="dataset",
    allow_patterns="multi_droplet/256x256/*",
    local_dir="."
)