东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (7): 962-965.DOI: 10.12068/j.issn.1005-3026.2015.07.011

• 材料与冶金 • 上一篇    下一篇

压力能驱动的自搅拌反应器流动特性数值模拟

张子木1,2， 吕超2， 赵秋月2， 刘燕2   

  1. (1.东北大学 轧制技术及连轧自动化国家重点实验室，辽宁 沈阳110819； 2.东北大学 材料与冶金学院， 辽宁 沈阳110819)
  • 收稿日期:2014-06-06 修回日期:2014-06-06 出版日期:2015-07-15 发布日期:2015-07-15
  • 通讯作者: 张子木
  • 作者简介:张子木(1984-)，男，河南周口人，东北大学博士研究生； 刘燕(1970-)，女，湖南湘乡人，东北大学教授.
  • 基金资助:
    国家自然科学基金资助项目(51204040，U1202274，51004033，50974035)； 国家高技术研究发展计划项目(2010AA03A405，2012AA062303); 国家科技支撑计划项目(2012BAE01B02); 中央高校基本科研业务费专项资金资助项目(N100302005).

Numerical Simulation on Flow Characteristics of Self-stirring Reactor Driven by Pressure Energy

ZHANG Zi-mu1,2， LYU Chao2， ZHAO Qiu-yue2， LIU Yan2   

  1. 1. State Key Laboratory of Rolling and Automation， Northeastern University， Shenyang 110819， China;2. School of Materials & Metallurgy， Northeastern University， Shenyang 110819， China.
  • Received:2014-06-06 Revised:2014-06-06 Online:2015-07-15 Published:2015-07-15
  • Contact: ZHAO Qiu-yue
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摘要： 提出了一种新型自搅拌管式反应器，并采用数值模拟方法对新型自搅拌溶出反应器内的流体流动特性进行了研究.在搅拌转速不变的情况下，研究了不同入口流速对反应器内部流体流动的影响.结果表明:不同流速下，反应器内部轴向流速整体分布均匀，但反应器入口和出口的流体，由于受到扰动作用速度偏大，且靠近出口的流速低于入口附近流速.径向靠近壁面处速度稍大，靠近搅拌轴处速度略小，说明搅拌桨叶端部对流体作用更大.入口流速为8.3m/s时，更利于反应器内环流的形成.

关键词: 数值模拟, 自搅拌, 流动特性, 反应器, 压力能

Abstract: A new kind of self-stirring tubular reactor was presented and numerical simulation approach was adopted to investigate the flow characteristics in the novel self-stirring leaching reactor. With the same agitation speed， the influence of inlet flow rate on fluid flow in the reactor was studied. The results show that， in different inlet flow conditions， the flow velocity distribution was uniform in the axial direction， but the velocities of fluids in inlet and outlet regions were higher due to the disturbance action， and the velocity in the outlet region was lower than that in the inlet region. In the radial direction， the velocity near the wall was higher and that close to the agitating shaft was lower， which shows that the impeller blade tip made a greater effect on fluid. The circulation flow in the reactor with stirring forms more easily under the flow rate of 8.3m/s.

Key words: numerical simulation, self-stirring, flow characteristics, reactor, pressure energy

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