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过程工程学报 ›› 2018, Vol. 18 ›› Issue (2): 288-293.DOI: 10.12034/j.issn.1009-606X.217197

• 流动与传递 • 上一篇    下一篇

基于0-1测试的底吹搅拌混合过程混沌特性分析

高 勤1,2， 肖清泰1,3， 王仕博1,3， 李 鹏1,3， 徐建新1,4*， 王 华1,3   

  1. 1. 昆明理工大学省部共建复杂有色金属资源清洁利用国家重点实验室，云南 昆明，650093；2. 昆明理工大学数学系，云南 昆明，650500； 3. 昆明理工大学冶金与能源工程学院，云南 昆明，650093；4. 昆明理工大学质量发展研究院，云南 昆明，650093
  • 收稿日期:2017-03-27 修回日期:2017-07-14 出版日期:2018-04-22 发布日期:2018-04-10
  • 通讯作者: 肖清泰 xujianxina@163.com

Analysis on Chaotic Characteristics of Bottom-blowing Stirred Mixing Process Based on 0?1 Test

Qin GAO1,2,  Qingtai XIAO1,3,  Shibo WANG1,3,  Peng LI1,3,  Jianxin XU1,4*,  Hua WANG1,3   

  1. 1. State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan 650093, China; 2. Department of Mathematics, Kunming University of Science and Technology, Kunming, Yunnan 650500, China; 3. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China; 4. Quality Development Institute, Kunming University of Science and Technology, Kunming, Yunnan 650093, China
  • Received:2017-03-27 Revised:2017-07-14 Online:2018-04-22 Published:2018-04-10
  • Contact: 清泰 肖 xujianxina@163.com

摘要： 通过建立水力学模型研究底吹搅拌混合过程，利用流场可视化技术与直接成像技术获取实验图像数据，引入0?1测试方法，考察了喷枪布置方式(个数与角度)对混合过程混沌特性的影响. 结果表明，基于颜色指示剂，利用数字图像处理手段可以近似估测混合过程的气含率，气含率演化规律符合实际工况运行特征；对各工况的气含率时间序列进行0?1测试，渐进增长率Kc中位数在一定程度上反映了不同混合过程的混沌强弱.

关键词: 底吹搅拌, 喷口布置, 混沌特性, 0-1测试, 图像分析

Abstract: Bottom-blowing mixing process was studied by fabricating the hydraulics model. Experimental image data was obtained using fluid visualization and digital imaging technologies. A novel chaos detection technique 0?1 test was employed to investigating the effect of nozzles arrangement, including the number and angle, on chaotic characteristic of mixing process. The results showed that the gas hold-up content could be estimated approximately by means of color indicator and digital image processing technology. The evolution of gas hold-up has good agreement with the real experiment running state. In addition, the time series of gas hold-up were tested by 0?1 method, respectively. It was demonstrated that the values of asymptotic growth rate Kc median have basically reflected the intensity of chaotic characteristics of different experimental conditions to some extent.