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The Polymer Effect on Nonlinear Processes in Decaying Homogeneous Isotropic Turbulence
Joint Authors
Zhang, Hong-Na
Wang, Lu
Li, Feng-Chen
Cai, Wei-Hua
Wang, Yue
Source
Advances in Mechanical Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-02-17
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
In order to study the polymer effect on the behavior of nonlinearities in decaying homogeneous isotropic turbulence (DHIT), direct numerical simulations were carried out for DHIT with and without polymers.
We investigate the nonlinear processes, such as enstrophy production, strain production, polymer effect, the curvature of vortex line, and many others.
The analysis results show that the nonlinear processes like enstrophy production (and many others) are strongly depressed in regions dominated by enstrophy as compared to those dominated by strain either in the Newtonian fluid case or in polymer solution case.
Polymers only decrease the values of these parameters in the strongest enstrophy and strain regions.
In addition, polymer additive has a negative effect on enstrophy and strain production, that is, depression of nonlinearity in DHIT with polymers.
American Psychological Association (APA)
Cai, Wei-Hua& Li, Feng-Chen& Zhang, Hong-Na& Wang, Yue& Wang, Lu. 2013. The Polymer Effect on Nonlinear Processes in Decaying Homogeneous Isotropic Turbulence. Advances in Mechanical Engineering،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-508319
Modern Language Association (MLA)
Cai, Wei-Hua…[et al.]. The Polymer Effect on Nonlinear Processes in Decaying Homogeneous Isotropic Turbulence. Advances in Mechanical Engineering No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-508319
American Medical Association (AMA)
Cai, Wei-Hua& Li, Feng-Chen& Zhang, Hong-Na& Wang, Yue& Wang, Lu. The Polymer Effect on Nonlinear Processes in Decaying Homogeneous Isotropic Turbulence. Advances in Mechanical Engineering. 2013. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-508319
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-508319