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Tumbling of vesicles under shear flow within an advected-field approach | T Biben
; C Misbah
; | Date: |
28 Feb 2003 | Journal: | Phys Rev E, 67 (3 Pt 1), 031908 | Abstract: | We study dynamics of vesicles with a viscosity contrast between the interior and exterior, and subjected to a linear shear flow. It is shown that the vesicle, which assumes a steady orientation with respect to the shear flow for r identical with eta(in)/eta(out)<r(c) (where eta(in) and eta(out) are the internal and external viscosities, and r(c) is a critical value which depends upon the swelling factor), undergoes a tumbling bifurcation for r>or=r(c). Tumbling occurs as a saddle-node bifurcation. We present analytical and numerical results. We develop a powerful method, the advected-field approach. This method allows one to treat several different phenomena with great flexibility. | Source: | PubMed, pmid12689102 | Services: | Forum | Review | Favorites |
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