Abstract
To impulse the application of supercavitation in the field of underwater weapon drag-reduction, the characteristics of cavitating flows around axisymmetric body which was with a cavitator were addressed by means of experimental methods. Cavity shapes around the body were obtained by means of a high-speed video camera in different cavitation numbers, and the time-averaged velocity and vorticity distributions were obtained by means of a particle image velocimetry (PIV) system. The results show that the high-fluctuating region with lower velocity corresponds to the cavitating area; the velocity in this area is much lower than main stream area. At the cloud cavitation stage, the large vortices become more dispersed.
| Original language | English |
|---|---|
| Pages (from-to) | 920-924 |
| Number of pages | 5 |
| Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| Volume | 33 |
| Issue number | 9 |
| Publication status | Published - Sept 2013 |
Keywords
- Axisymmetric body
- Cavitation
- Digital particle image velocimetry (DPIV)