Welcome to Journal of University of Chinese Academy of Sciences,Today is

Journal of University of Chinese Academy of Sciences ›› 2023, Vol. 40 ›› Issue (1): 21-28.DOI: 10.7523/j.ucas.2021.0029

• Research Articles • Previous Articles    

Numerical simulation of forced convection driven by high-frequency traveling magnetic field for low conductivity liquids

GUO Shengrong1,2, NA Xianzhao1, LIU Runcong2, LI Yong2, ZHANG Xiangping3, DONG Haifeng3, DAI Xiaotian1, GONG Xiufang4, WANG Xiaodong2   

  1. 1. State Key Laboratory of Advanced Steel Processes and Products, Centre Iron & Steel Research Institute, Beijing 100081, China;
    2. Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
    4. State Key Laboratory of Long-Life High Temperature Materials, Dongfang Turbine Co., Ltd, Deyang 618000, Sichuan, China
  • Received:2021-01-25 Revised:2021-03-23

Abstract: High frequency traveling magnetic field generated by two sets of coil can be applied as a new driving method for low conductivity liquid, therefore study on its mechanism is of great significance. In this paper, a numerical model is established to study the effects of current, frequency, phase difference, and coil distance on the flow field and temperature field of the low conductivity liquid being driven, so as to obtain the optimal electrical parameters configuration and coil structure for the driving task. The simulation results show that the average velocity and temperature of the fluid are linearly correlated with the magnitude and frequency of the current. The average velocity is maximized when the phase difference between the coils is near 90o. Depend on the coil distance, the flow field is either two vortices or a single large circulation. Particle image velocimetry (PIV) is also used to measure the flow field distribution of NaCl solution driven by high frequency traveling magnetic field, which verifies the feasibility and effectiveness of the driving method.

Key words: flow, forced convection, electromagnetic stirring, numerical simulation, high-frequency magnetic field

CLC Number: