CHENG Zhaolong, E Chenglin, LU Chunxi. Numerical simulation of natural vortex length in riser termination with SVQS system[J]. CIESC Journal, 2016, (8): 3347-3356.
CHENG Zhaolong, E Chenglin, LU Chunxi. Numerical simulation of natural vortex length in riser termination with SVQS system[J]. CIESC Journal, 2016, (8): 3347-3356.DOI: 10.11949/j.issn.0438-1157.20160381.
To optimize the cylinder height of the closing section
the gas phase flow field and the natural vortex length in a φ600 mm×4150 mm super vortex quick separation (SVQS) system were simulated by using the RNG k-ε turbulent model. The simulation results show that the cross-section location of the vortex end was agreeable to that of 88% attenuation of the maximum tangential velocity in the entrance section of flow partition column
which hence defined the natural vortex length. From the tangential velocity distribution of gas phase in SVQS
the natural vortex length of the quick separation was found to increase with the increase of spout velocity and the decrease of stripping velocity. Based on the numerical simulation and structural characteristics of SVQS
an equation for calculating the natural vortex length in SVQS was developed.