环境工程学报2011，Vol.5Issue(10)：2331-2336,6.
壁面粗糙度对旋风分离器内流场影响的数值模拟
Numerical simulation of the effect of wall roughness on flow field in cyclones
摘要
Abstract
The FLUENT6.2.16 software is used to simulate the flow field in cyclones.The distributions of the tangential velocity,axial velocity,radial velocity and static pressure are presented at the different wall roughness.The tangential velocity decreases evidently with the increase of wall roughness.The axial velocity has no obvious regular variety,but increases in the vortex core region of the upper part of the cyclone body,and the retention phenomenon in the vortex core region is weakened.The radial velocity decreases with the increase of wall roughness in the most part of flow field.The static pressure decreases with the increase of wall roughness in the outer vortex region.Finally,the mechanisms of reduction in pressure loss and separation efficiency of the cyclone separator caused by the wall roughness are discussed.关键词
旋风分离器/壁面粗糙度/流场/数值模拟Key words
cyclone separator/wall roughness/flow field/numerical simulation分类
资源环境引用本文复制引用
刘成文,李兆敏,李希成..壁面粗糙度对旋风分离器内流场影响的数值模拟[J].环境工程学报,2011,5(10):2331-2336,6.基金项目
中国石油大学（华东）博士科研基金 （）
