Abstract
Natural circulation flow instability under rolling motion conditions was experimentally studied. Experimental results show that the complex flow oscillations are formed due to the overlapped effect of the rolling motion (trough instability) and density wave oscillation. The system becomes more instable because of the occurrence of complex flow oscillations. Complex flow oscillations only occur in the case of high subcooling and may be divided into two types, regular and irregular complex flow oscillations. Under the same thermohydraulic conditions, the marginal stability boundary (MSB) of regular complex oscillations is similar to that of density wave oscillation without rolling motion. And the influences of rolling amplitude and rolling period on its MSB are slight.
| Original language | English |
|---|---|
| Pages (from-to) | 1007-1011 |
| Number of pages | 5 |
| Journal | Yuanzineng Kexue Jishu/Atomic Energy Science and Technology |
| Volume | 42 |
| Issue number | 11 |
| State | Published - Nov 2008 |
Keywords
- Complex flow oscillation
- Density wave oscillation
- Flow instability
- Natural circulation
- Rolling motion