| --- |
| license: cc-by-nc-4.0 |
| tags: |
| - CFD |
| - Multiphase |
| - CompressibleFlow |
| - SciML |
| - Shock |
| - Droplets |
| pretty_name: 2D Shock-Induced Droplet Breakup in Air |
| size_categories: |
| - 10K<n<100K |
| --- |
| |
| # 2D Shock-Induced Droplet Breakup in Air |
| ## 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/2D_SDBA_SSOO/resolve/main/SDBA_SSOO_SIE_Mas1.20.mp4" loop autoplay muted></video> |
| <video style="width:100%;max-width:400px" src="https://huggingface.co/datasets/FluidVerse/2D_SDBA_SSOO/resolve/main/SDBA_SSOO_RTP_Mas2.00.mp4" loop autoplay muted></video> |
| </div> |
|
|
| ## About the data |
| |Metadata|Description| |
| |-----|------| |
| |Solver|[ALPACA](https://www.sciencedirect.com/science/article/abs/pii/S0010465521003581)| |
| |PDE|2D compressible Euler equations| |
| |Dimension|2D| |
| |Number of Trajectories|300| |
| |Train-Test-Split|0.8 - 0.2| |
| |Number of Timesteps|101| |
| |Simulation End Time|91 \\( \mu s \\) - 1240 \\( \mu s \\) (depending on the IC)| |
| |Save Interval|0.91 \\( \mu s \\) - 12.40 \\( \mu s \\) (depending on the IC)| |
| |Fields| - density_mixed <br/> - density_water <br/> - density_air <br/> - pressure <br/> - velocityX <br/> - velocityY <br/> - volume_fraction_water| |
| |Simulation Resolution|1024x512 (Clipped and Downsampled)| |
| |Dataset Resolution|512x512 & 256x256| |
| |Grid Type|Cartesian Uniform Grid| |
| |Initial Condition|The droplets are in equilibrium with the surrounding pre-shock environment.| |
| |Boundary Conditions| North: Symmetry <br/> South: Symmetry <br/> East: Open <br/> West: Open| |
| |Conditioning Parameters| Shock 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 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="." |
| ) |
| ``` |
