Numerical Simulation of Polymer Injection in Turbulent Flow Past a Circular Cylinder

David Richter, Eric S. G. Shaqfeh, Gianluca Iaccarino

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Using a code developed to compute high Reynolds number viscoelastic flows, polymer injection from the upstream stagnation point of a circular cylinder is modeled at Re = 3900. Polymer stresses are represented using the FENE-P constitutive equations. By increasing polymer injection rates within realistic ranges, significant near wake stabilization is observed. Rather than a turbulent detached shear layer giving way to a chaotic primary vortex (as seen in Newtonian flows at high Re), a much more coherent primary vortex is shed, which possesses an increased core pressure as well as a reduced level of turbulent energy. © 2011 American Society of Mechanical Engineers.
Original languageEnglish (US)
JournalJournal of Fluids Engineering
Volume133
Issue number10
DOIs
StatePublished - Sep 27 2011
Externally publishedYes

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