Abstract
Numerical calculation of the free water vortex is carried out by using Reynolds stress turbulence model and PISO algorithm. VOF(Volume of Fluid) method is used to deal with the free surface problem. The detailed structure and evolution of free water vortex are obtained. It is found that free water vortex is caused by the centralization of rotation energy. The vortex swirl rests with the water rotation direction in tank. Free water vortex is quasi-Rankine's vortex and has two characteristic regions, called inspiratory hole and air uplift region.
| Original language | English |
|---|---|
| Pages (from-to) | 85-88 |
| Number of pages | 4 |
| Journal | Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University |
| Volume | 37 |
| Issue number | 1 |
| State | Published - Jan 2003 |
Keywords
- Free surface
- Free vortex
- Free water vortex
- Numerical simulation
- Rankine's vortex
- VOF model