化工学报2016，Vol.67Issue(8)：3347-3356,10.DOI:10.11949/j.issn.0438-1157.20160381
提升管出口SVQS自然旋风长度的数值模拟
Numerical simulation of natural vortex length in riser termination with SVQS system
摘要
Abstract
To optimize the cylinder height of the closing section, the gas phase flow field and the natural vortex length in aϕ600 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.关键词
提升管/分离/计算流体力学Key words
riser/separation/computational fluid dynamics分类
数理科学引用本文复制引用
程兆龙,鄂承林,卢春喜..提升管出口SVQS自然旋风长度的数值模拟[J].化工学报,2016,67(8):3347-3356,10.基金项目
国家重点基础研究发展计划项目（2012CB215000）。@@@@supported by the National Basic Research Program of China (2012CB215000) （2012CB215000）
