Derivation of Two-Fluid Model Based on Onsager Principle.
Entropy (Basel)
; 24(5)2022 May 17.
Article
em En
| MEDLINE
| ID: mdl-35626599
ABSTRACT
Using the Onsager variational principle, we study the dynamic coupling between the stress and the composition in a polymer solution. In the original derivation of the two-fluid model of Doi and Onuki the polymer stress was introduced a priori; therefore, a constitutive equation is required to close the equations. Based on our previous study of viscoelastic fluids with homogeneous composition, we start with a dumbbell model for the polymer, and derive all dynamic equations using the Onsager variational principle.
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MEDLINE
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En
Ano de publicação:
2022
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Article