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(a) A schematic diagram representing the difference in velocity distribution of shear flow (left image) and pressure driven flow (right image). (b) Definition of two polar angles that define director orientation. A rotation in the shear plane is characterized by an azimuthal (twist), and a rotation out of the shear plane denoted by a zenithal (tilt).
Schematic diagram of laser conoscope (see Ref. 15).
Schematic diagram of pressure driven flow cell designed and constructed.
Measured (symbols) and modeled (solid line) angle of conoscopic interference figure rotation for 5CB aligned homogeneously at to the direction of pressure driven flow. Dashed and dotted lines show modeled conoscopic figure rotation for ±10% variations in .
Captured (left column) and modeled (right column) conoscopic interference figures for 5CB aligned homogeneously at to the direction of pressure driven flows.
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