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EFFECT OF INTERNAL VISCOSITY OF POLYMERIC FLUIDS UNDER STRONG EXTENSIONAL FLOWS
Alternative TitleEFFECT OF INTERNAL VISCOSITY OF POLYMERIC FLUIDS UNDER STRONG EXTENSIONAL FLOWS
Yang Xiaodong1; Melnik Roderick V N2
2009
Source PublicationCHINESE JOURNAL OF POLYMER SCIENCE
ISSN0256-7679
Volume27Issue:2Pages:189-193
AbstractThe dumbbell model with internal viscosity for a dilute polymer solution is investigated based on a balance of viscous drag and restoring Brownian forces. An approximate method is used to obtain the solution of extensional stress in closed form in the case of steady flow. For different internal viscosities, this parametric study shows different asymptotic regimes of the extensional viscosity as a function of strain rate. This analysis may explain the attenuation of pressure drop in strong flows from a phenomenological point of view.
Other AbstractThe dumbbell model with internal viscosity for a dilute polymer solution is investigated based on a balance of viscous drag and restoring Brownian forces.An approximate method is used to obtain the solution of extensional stress in closed form in the case of steady flow.For different internal viscosities,this parametric study shows different asymptotic regimes of the extensional viscosity as a function of strain rate.This analysis may explain the attenuation of pressure drop in strong flows from a phenomenological point of view.
KeywordBROWNIAN DYNAMICS SIMULATIONS DNA-MOLECULES SHEAR-FLOW Polymeric fluid Internal viscosity Extensional viscosity
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation of China]
CSCD IDCSCD:3568577
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/158002
Collection中国科学院金属研究所
Affiliation1.中国科学院金属研究所
2.威尔弗里德·劳雷尔大学
Recommended Citation
GB/T 7714
Yang Xiaodong,Melnik Roderick V N. EFFECT OF INTERNAL VISCOSITY OF POLYMERIC FLUIDS UNDER STRONG EXTENSIONAL FLOWS[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2009,27(2):189-193.
APA Yang Xiaodong,&Melnik Roderick V N.(2009).EFFECT OF INTERNAL VISCOSITY OF POLYMERIC FLUIDS UNDER STRONG EXTENSIONAL FLOWS.CHINESE JOURNAL OF POLYMER SCIENCE,27(2),189-193.
MLA Yang Xiaodong,et al."EFFECT OF INTERNAL VISCOSITY OF POLYMERIC FLUIDS UNDER STRONG EXTENSIONAL FLOWS".CHINESE JOURNAL OF POLYMER SCIENCE 27.2(2009):189-193.
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