Abstract
The turbulent structure of a submerged axisymmetric impinging jet containing small gas bubbles is studied experimentally under conditions of periodic external excitation. On the basis of measuring the surface-friction pulsatory component in the jet impinging on an obstacle, the effect of the suppression of large-scale eddies at large gas volume fractions is registered. The conditions of resonant growth of coherent structures and the suppression of wide-band turbulence are determined for both the single-phase and the two-phase impinging jet. An analysis of the development of different pulsatory friction components in the impinging-jet gradient region is presented.
| Original language | English |
|---|---|
| Pages (from-to) | 22-33 |
| Number of pages | 12 |
| Journal | Fluid Dynamics |
| Volume | 37 |
| Issue number | 5 |
| Publication status | Published - 1 Jan 2002 |
| Externally published | Yes |
Keywords
- Coherent structures
- Gas-liquid
- Submerged impinging jet
- Turbulence
ASJC Scopus subject areas
- Mechanical Engineering
- Physics and Astronomy(all)
- Fluid Flow and Transfer Processes