Orientational order in confined systems of self-driven spinners

We investigated large systems of self-driven spinners confined over a substrate through direct numerical simulation of 3D hydrodynamics. Our results demonstrated that these systems generate unique flows from which spatial and orientational order emerges. We showed that a transition in particle orientation accompanies the appearance of crystallinity as the packing fraction is increased. Further exploration revealed a rich, tunable state space, offering insights into the biophysics of natural microswimmers with rotational motion as well as into the design of synthetic spinner systems. This is a dataset of the simulations performed to generate the figures in the corresponding paper. The directories are organized by figure and subfigure. Raw simulation data are in the KAPSEL UDF format; please refer to the KAPSEL-DNS website and user manual for further details on this format. In addition, postprocessing and analysis scripts to read raw data, perform postprocessing calculations, and generate..., , ## Directory Structure

`spinners_pingali_luijten_dataset.tar.gz` is the compressed directory. Upon extraction, nested directories for the data corresponding to each figure and subfigure are available:

```
├── Fig1
│   ├── Fig1a
│   ├── Fig1b
│   └── Fig1c
├── Fig2
│   ├── Fig2a
│   │   ├── crs_preprocessor
│   │   ├── set_1
│   │   ├── set_2
│   │   ├── set_3
│   │   ├── set_4
│   │   └── set_5
│   ├── Fig2b
│   └── Fig2c
├── Fig3
├── Fig4
│   ├── Fig4a
│   │   ├── crs_preprocessor
│   │   ├── set_1
│   │   ├── set_2
│   │   ├── set_3
│   │   ├── set_4
│   │   └── set_5
│   ├── Fig4b
│   ├── Fig4c
│   ├── Fig4d
│   ├── Fig4e
│   ├── Fig4f
├── FigS1
└── Re_0_calc
```

## Overview of Repository Contents

### Figure 1

Fluid streamlines showing flow generated by spinning particles driven by intrinsic torque.

Directories contain input, trajectory output, and restart files in the KAPSEL UDF format, and fluid velocity fields in the HDF5 format (in subdirectory `output`):

* Fig1a: Single s...,