Synchronous Flow Field Measurement during Coagulation Processes by PIV

Li Yun Zeng; Yu Hong Mao

doi:10.4028/www.scientific.net/AMR.864-867.2069

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 864-867Synchronous Flow Field Measurement during...

Synchronous Flow Field Measurement during Coagulation Processes by PIV

Abstract:

Particle image velocimetry (PIV) was applied to measurement and characterization the velocity field during the coagulation process under the conditions that used kaolin flocs as the seed particles without any other special seed particle. The results indicated that there were similar special wave structure of the vortexes generated on meridianal plane, the forms and the size of the adjacent vortexes changed periodically, and the bulk fluid motion was observed between vortices when the rotating speed was between 20~60 rpm, this could be very helpful in flocs combination with each other and growing into larger flocs, which could bring about the higher flocculation efficiency. At the same time, it was demonstrated that the kaolin flocs can be used as seed particle to characterization and measurement the flow field structure with good performance in the coagulation process by PIV. It was also considered that PIV can be exploited as a useful tool in the synchronous measurement the velocity field during flocculation processes.

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Periodical:

Advanced Materials Research (Volumes 864-867)

Pages:

2069-2072

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.864-867.2069

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Online since:

December 2013

Authors:

Li Yun Zeng, Yu Hong Mao

Keywords:

Flocs Seed Particle, PIV, Synchronous Flow Field Measurement, Velocity Vector

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