Numerical Study of Liquid Crystal Flow Induced by Annihilation of a Pair of Defects
In this article,we have numerically investigated both the transient behaviors of two opposite strength defects with different structures and the velocity field,using the extension Doi theory with the Marrucci-Greco potential.A defect of negative strength moves faster than the one of positive strength.It is clarified that flows are induced during the annihilation of a pair of defects and that several vortices are generated in the vicinity of defects.The maximum velocity is predicted spatially between the two defects just after the annihilation.In the present simulation,the maximum of the induced velocity reaches an order of 10 μm/s.The induced velocity becomes large with the increase in the values of the long range order and the nematic potential strength.
Non-Newtonian Fluid Liquid Crystal Defect Doi Theory Marrucci-Greco Potential
LIU Chunbo QIU Chao CHONO Shigeomi
College of Mechanical and Electrical Engineering, Zhengzhou, Henan, CHINA Department of Mechanical Engineering, Kochi University of Technology, Kami, Kochi, JAPAN
国际会议
中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)
杭州
英文
1-6
2012-11-04（万方平台首次上网日期，不代表论文的发表时间）