Elastic secondary flows of semidilute DNA solutions in abrupt 90° micro-bends

Authors

Shelly Gulati, University of California, BerkeleyFollow
Dorian Liepmann, University of California, Berkeley
Susan J. Muller, University of California, Berkeley

Department

Bioengineering

Document Type

Article

Publication Title

Physical Review E

ISSN

2470-0045

Volume

78

Issue

1

DOI

10.1103/PhysRevE.78.036314

First Page

36314

Publication Date

9-1-2008

Abstract

Secondary flows that are absent in Newtonian flows are found for semidilute λ-DNA solutions in abrupt planar 90° microbends at modest levels of elasticity. Flow visualization and microparticle image velocimetry experiments show that a vortex, which is present in the inner, upstream corner of the bend, grows with increasing Reynolds and Weissenberg number (9.9×10⁻⁷−2,0.41

Recommended Citation

Gulati, S., Liepmann, D., & Muller, S. J. (2008). Elastic secondary flows of semidilute DNA solutions in abrupt 90° micro-bends. Physical Review E, 78(1), 36314. DOI: 10.1103/PhysRevE.78.036314
https://scholarlycommons.pacific.edu/soecs-facarticles/52