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Viscous forces on nematic point defects

Sonnet, A.M. (2005) Viscous forces on nematic point defects. Continuum Mechanics and Thermodynamics, 17 (3). pp. 287-295.

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The effect of backflow in defect dynamics is assessed by computing the viscous force on point and line defects that move due to reorientation. It is found that defects with a positive winding number are accelerated while defects with a negative winding number are slowed down by the backflow. The results are in agreement with experimental and numerical results for defect annihilation.