PIV investigation on the turbulence in a gas-liquid separator
- Junlian yin,
- Tingting Zhang,
- Guangyuan Huang,
- Dezhong Wang
Abstract
The two-phase flow in an axial gas-liquid separator is critical for the
gas separation in the thorium molten salt reactor. Although the
two-phase flow pattern is visualized and the velocity field is obtained
in our previous studies, the turbulence field is still unknown. To
clarify the statistics of the turbulence field, we used the stereo PIV
technique to explore the instantaneous fluctuations of three velocity
components. The turbulence information including the turbulent kinetic
energy and three typical Reynolds shear stresses were extracted from
five typical planar positions covering the whole swirl chamber. The
results indicate that the distribution of turbulence statistics presents
a very different tendency of distribution, as compared to conventional
cyclones. The difference is distinguished by the varying anisotropic
stress field and the double peak distribution of turbulent kinetic
energy. The turbulence data provides a complete and reliable foundation
for two-phase turbulence modeling.