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Flow-orientation coupling in shear flows of liquid crystalline polymers


Speaker: Qi Wang, Indiana University-Purdue University Indianapolis, Department of Mathematical Sc
Location: 693 Kerr
Start time: Thu, Mar 16 2000, 4:10PM

We will discuss the issue of flow-orientation coupling in shear flows of nematic liquid crystal polymers (LCP) using the extended Doi theory with Marrucci-Greco potential (DMG) for long-range molecular interaction. Firstly, we will present a few families of the exact solutions of the DMG model in constant flow fields, which are responsible for the phase transition and a variety of banded structures and textures. Then, we will explore the orientational structures emerged in simple flows of LCPs due to strong flow-orientation coupling and present their scaling behavior with respect to physical parameters. Finally, we will address the issue of stability for the steady state solutions.