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Apparent Viscosity of Oil-Water (Coarse) Emulsion and Its Rheological Characterization During the Phase Inversion Region
Zhang J(张健); Xu JY(许晶禹); Gao MC(高梦忱); Wu YX(吴应湘); Xu, JY (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
Source PublicationJOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
2013-08-03
Volume34Issue:8Pages:1148-1160
ISSN0193-2691
Abstract
A series of oil and water (coarse) emulsions has been systematically studied in order to obtain more knowledge about the flow characteristics. Experimental measurements were conducted using Rheo Stress 6000 from Therm O Haake. Several factors such as shear rate, oil volume fraction, temperature, emulsifying agent, and stirring time on the rheological characteristics of emulsions were investigated. The emulsions without emulsifying agent are discussed by Ostwald de Waele model, Casson model, and Bingham model, respectively, according to different oil volume fractions. Sixteen models of the apparent viscosity were evaluated to predict these emulsions. The results show that existing models of the apparent viscosity exhibit large deviations from the experimental data over the range of low and middle oil volume fractions (E-o<0.5) due to the droplets fast flocculation, and but can give a good prediction at high oil volume fractions (E-o>0.6). Furthermore, emulsifying agent and shear rate have few influences on the phase inversion point and the maximum value of the apparent viscosity appears around E-o=0.6. At the phase inversion point, the viscoelastic behavior of the emulsions were also analyzed by shear stress sweeps and frequency sweeps, respectively. These findings are helpful to improve the pipeline transportation of an immiscible oil and water two-phase dispersed flow.
KeywordApparent Viscosity Emulsions Phase Inversion Region Rheology
Subject Area多相流
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000322104500014
Funding OrganizationNational Natural Science Foundation of China [10902114]; Special Development of National Key Scientific Instruments in China [2011YQ120048-02]; Outstanding Young Talent Incubation Program at Institute of Mechanics, Chinese Academy of Sciences
DepartmentLMFS多相流及流固耦合(LHO)
ClassificationQ4
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Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47335
Collection流固耦合系统力学重点实验室
Corresponding AuthorXu, JY (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang J,Xu JY,Gao MC,et al. Apparent Viscosity of Oil-Water (Coarse) Emulsion and Its Rheological Characterization During the Phase Inversion Region[J]. JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY,2013,34(8):1148-1160.
APA 张健,许晶禹,高梦忱,吴应湘,&Xu, JY .(2013).Apparent Viscosity of Oil-Water (Coarse) Emulsion and Its Rheological Characterization During the Phase Inversion Region.JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY,34(8),1148-1160.
MLA 张健,et al."Apparent Viscosity of Oil-Water (Coarse) Emulsion and Its Rheological Characterization During the Phase Inversion Region".JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY 34.8(2013):1148-1160.
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