Flow induced phenomena

Flow imparts both extension and rotation to fluid elements. Thus, polymer molecules will be oriented and stretched under these circumstances and this may result in flow-induced phenomena observed in polymer systems which include phase-changes, crystallization, gelation or fiber formation. More generally, the Gibbs free energy of polymer blends or solutions depends under non-equilibrium conditions not only on temperature, pressure and concentration but also on the conformation of the macromolecules (as an internal variable) and hence, it is sensitive to external forces. [Pg.72]

This section provides information pertaining to the design of reactor and steam generator vessel internal components and structures which are subjected to vibrations from acoustic and flow-induced phenomena. These vibrations can cause fatigue failures and could potentially affect the safe operation and shutdown of the reactor. [Pg.214]

Flow induced phenomena of lyotropic polymer liquid crystals the negative normal force effect and bands perpendicular to shear... [Pg.342]

Flow-Induced Phenomena of Polymer Liquid Crystals.89... [Pg.79]

FLOW-INDUCED PHENOMENA OF POLYMER LIQUID CRYSTALS... [Pg.89]

Kiss, G., Flow-Induced Phenomena of Lyotropic PLCs in Mechanical and thermophysical properties of polymer liquid crystals, W. Brostow Editor, Chapman and Hall, (London) (1998). [Pg.162]

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