转速对动态旋流器流场影响的数值分析  

Numerical Analysis on the Influence of Rotation Speed on the Flow Field Within Dynamic Hydroclone

作　　者：张攀峰[1] 邓松圣[1] 王斌 姜希彬 高松竹[4] 

机构地区：[1]后勤工程学院军事供油工程系,重庆401311 [2]中铁十一局集团第五工程有限公司建安分公司,重庆400030 [3]72489部队,山东265300 [4]成都军区联勤部,成都610051

出　　处：《后勤工程学院学报》2012年第2期26-30,共5页Journal of Logistical Engineering University

基　　金：重庆市科技攻关资助项目(CSTC,2010AC7034);重庆高校优秀成果转化资助项目(KGZH11223)

摘　　要：根据计算流体力学方法，对采用不同转速的动态旋流器流场进行数值模拟，深入分析了转速对动态旋流器切向速度、静压以及湍动能的影响。计算采用雷诺应力模型和混合物模型。结果表明：转速对动态旋流器切向速度和静压影响非常大，不但影响其数值大小，对其分布趋势也产生明显影响；转速对动态旋流器湍动能的影响主要集中在旋转栅附近，在转筒后半段转速对湍动能的影响明显弱化，适当提高转速甚至有抑制湍流的作用。The computational fluid dynamics method is utilized to simulate flow fields within dynamic hydrocyclone which op- erates with different rotation speeds, and to analyze the impact of rotation speed on the three aspects of the interior flow filed, inclu- ding the internal flow static pressure distribution, tangential velocity and turbulent kinetic energy distribution. In calculation Reynolds stress model and mixer model are used. The results show that rotation speeds have a huge impact on the distribution and values of the tangential velocity intensity and static pressure. The turbulent kinetic energy is obviously affected by rotation speed near rotating-bar and is weakened in the second half of rotation cylinder. An appropriate increase of rotation speed even can inhibit the turbulence of dynamic hydrocyclone.

关 键 词：动态旋流器 转速 流场 数值分析 

分 类 号：TQ028[化学工程]