Comparing the wall slip and the constitutive approach for modelling spurt instabilities in polymer melt flows

Journal of Non-Newtonian Fluid Mechanics

Volumn 75, Issue 1, 1998, Pages 25-41

  Den Doelder, C F J ^a,b   Koopmans, R J ^b   Molenaar, J ^a   Van De Ven, A A F ^a  

^a EINDHOVEN UNIVERSITY OF TECHNOLOGY   (Netherlands)

^b DOW BENELUX B V   (Netherlands)

Author keywords

Extrusion; JSO model; Relaxation oscillations; Slip stick; Spurt

Indexed keywords

BOUNDARY CONDITIONS; EXTRUSION; FUNCTIONS; MATHEMATICAL MODELS; NEWTONIAN LIQUIDS; POLYMERS; RELAXATION PROCESSES; WALL FLOW;

SPURT INSTABILITIES; WALL SLIP;

NON NEWTONIAN FLOW;

OSCILLATION; POLYMER; SLIP FLOW; WALL;

EID: 0032007238     PISSN: 03770257     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0377-0257(97)00081-5     Document Type: Article

References (15)

1. R.G. Larson, Instabilities in viscoelastic flows, Rheol. Acta 31 (1992) 213-263.
2. K.P. Adewale, A.I. Leonov, Modelling spurt and stress oscillations in flows of molten polymers, Rheol. Acta 36 (1997) 110-127.
3. J.M. Piau, N. El Kissi, F. Toussaint, A. Mezghani, Distortions of polymer melt extradates and their elimination using slippery surfaces, Rheol. Acta 36 (1995) 40-47.
4. J.F. Agassant, P. Avenas, J.P. Sergent, B. Vergnes, M. Vincent, La mise en forme des matières plastiques, 3rd Ed., Techniques and Documentation, Paris, 1996.
5. J. Molenaar, R.J. Koopmans, Modeling polymer melt-flow instabilities, J. Rheol. 38 (1) (1994) 99-109.
6. V. Durand, B. Vergnes, J.F. Agassant, E. Benoit, R.J. Koopmans, Experimental study and modelling of oscillating flow of high density polyethylenes, J. Rheol. 40 (3) (1996) 383-394.
7. R.W. Kolkka, D.S. Malkus, M.G. Hansen, G.R. Ierley, R.A. Worthing, Spurt phenomena of the Johnson-Segalman fluid and related models, J. Non-Newt. Fluid Mech. 29 (1988) 303-335.
8. D.S. Malkus, J.A. Nohel, B.J. Plohr, Dynamics of Shear Flow of a Non-Newtonian Fluid, J. Comp. Phys. 87 (1990) 464-487.
9. C.F.J. den Doelder, Sharkskin and spurt in JSO modelled polymer extrusion, Eindhoven University of Technology, ISBN 90 5282, 727 (1996) 3.
10. M.J.H.B. Grob, Flow instabilities in a polymer extrusion process, Eindhoven University of Technology, ISBN 90, 5282 (1994) 414-422.
11. J.M. Greenberg, Y. Demay, A simple model of the melt fracture instability, Eur. J. Appl. Math. 5 (1994) 337-357.
12. A.C.T. Aarts, Analysis of the flow instabilities in the extrusion of polymeric melts, Ph.D. Thesis, Eindhoven University of Technology, 1997.
13. D.S. Malkus, J.A. Nohel, B.J. Plohr, in: Everitt, Lee (Eds.), Approximating Piston-driven Flow of a Non-newtonian Fluid, from Diff. Eqns, Dyn. Syst., and Control Sci., Marcell Dekker, New York, 1993, pp. 173-192.
14. G.C. Georgiou, M.J. Crochet, Time-dependent compressible extrudate-swell problem with slip at the wall, J. Rheol. 38 (6) (1994) 1745-1755.
15. A.I. Leonov, A.N. Prokunin, Nonlinear phenomena in flows of viscoelastic polymer fluids, Chapman and Hall, London, 1994.