Study on Extensional Flow of Polymer Fluids Tested by PIV System

doi:10.19491/j.issn.1001-9278.2011.10.018

China Plastics ›› 2011, Vol. 25 ›› Issue (10): 86-89 .DOI: 10.19491/j.issn.1001-9278.2011.10.018

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Study on Extensional Flow of Polymer Fluids Tested by PIV System

LIN Xiang REN Dongyun WAN Kuisheng JIANG Shunliang

Received:2011-05-26 Revised:2011-07-06 Online:2011-10-26 Published:2011-10-26

Abstract

Abstract: The velocity distribution and extensional flow behavior for low molecular and low viscosity Newtonian fluids (polyisobutylenes) and Non-Newtonian fluids (sodium benzoate solution) while flowed through a continual contraction channel were determined and compared with the help of a particle image velocimetry system (PIV). The shear rate at wall of channel and extensional rate along its axis were estimated. The differences between the two fluids were analyzed and explained.

Key words: continual contraction, velocity distribution, particle image velocimetry, extensional flow, polymer

LIN Xiang REN Dongyun WAN Kuisheng JIANG Shunliang. Study on Extensional Flow of Polymer Fluids Tested by PIV System[J]. China Plastics, 2011, 25(10): 86-89 .

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