(vorticity_problem)=
# Vorticity-related problems

```{admonition} Summary
* **Subject:** Drag, lift and history forces in relation with vorticity
* **Key idea** Vorticity $\nabla \times \mathbf{v}$ plays key roles in hydrodynamic forces acting on particles. 
* **References:** 
    - {cite:t}`Stone1993-ww`
    - {cite:t}`Legendre2007-nv`
    - {cite:t}`Auton1987-hk`
    - {cite:t}`Landau1987`
```


```{toctree} 
:maxdepth: 1

vorticity_problem/stokes_drag_GKB
vorticity_problem/drag_enstrophy
vorticity_problem/drag_vorticity
vorticity_problem/auton_lift
vorticity_problem/basset_force
```