Simulation of Vortex growth in planar entry flow of a viscoelastic fluid | Zendy

Mitsoulis E. | Zendy; Vlachopoulos J. | Zendy; Mirza F. A. | Zendy

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Simulation of Vortex growth in planar entry flow of a viscoelastic fluid

Author(s) -

Mitsoulis E.,

Vlachopoulos J.,

Mirza F. A.

Publication year - 1985

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1985.070300405

Subject(s) - viscoelasticity , vortex , rheology , mechanics , newtonian fluid , herschel–bulkley fluid , materials science , non newtonian fluid , elasticity (physics) , viscosity , generalized newtonian fluid , shear stress , shear flow , flow (mathematics) , planar , fluid dynamics , physics , shear rate , composite material , computer graphics (images) , computer science

A numerical simulation of entry flow in a slit die has been undertaken for a fluid that is Newtonian in shear but exhibits normal stresses (Boger fluid). Experimentally measured normal stress and viscosity data are included in a simple rheological model. Flow patterns reveal the existence of vortices in the reservoir corners. Vortex size and intensity increase rapidly with elasticity level.

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