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Title of Journal: Rheol Acta

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Abbravation: Rheologica Acta

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Springer Berlin Heidelberg

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DOI

10.1007/s10734-015-9950-2

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1435-1528

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End effects in rotational viscometry II Pseudopla

Authors: Ondřej Wein Věra Pěnkavová Jaromír Havlica
Publish Date: 2015/10/17
Volume: 54, Issue: 11-12, Pages: 903-914
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Abstract

Neglecting of end effects in rotational viscometry introduces 10–30 error in the estimate of shear stress σ R at surface of rotating cylindrical spindle Actual values of the correction coefficient c L for a real sensor depend on pseudoplasticity level of a given sample measured by the flowbehavior index n and inertia level measured by the Reynolds number Re The correction coefficients for the real sensors with coaxial cylinders are calculated by solving the related flow problem for Generalized Newtonian Fluid with powerlaw viscosity function In addition to the cylindrical sensors according to ISO 3219 CEN Bruxelles 53019 1994 also some clones with different geometry simplex H = h/R are considered The results on c L n Re H are presented as a simple empirical formula for easy use in downstream treatment of primary data using the pseudosimilarity approach

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  2. Amorphous and crystalline states of ultrasoft colloids: a molecular dynamics study
  3. A hierarchical multi-mode MSF model for long-chain branched polymer melts part II: multiaxial extensional flows
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  5. Can dynamical mechanical measurements predict brittle fracture behaviour?
  6. Self-reinforcement of polymers as a consequence of elongational flow
  7. The role of convective constraint release in parallel superposition flows of nearly monodisperse entangled polymer solutions
  8. Influence of the initial cooling temperature on the gelation and yield stress of waxy crude oils
  9. Molecular architecture and linear viscoelasticity of homogeneous ethylene/styrene copolymers
  10. Flow analysis of the weld line formation during injection mold filling of thermoplastics
  11. Squeeze flow of soft solids between rough surfaces
  12. Molecular orientation in non-Newtonian flow of dilute polymer solutions around spheres
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  14. Rheological behaviour of a high-melt-strength polypropylene at elevated pressure and gas loading for foaming purposes
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  16. Rheological and morphological properties of PA6/ECO nanocomposites
  17. Orientation distribution in injection molding: a further step toward more accurate simulations
  18. Fractal analysis of viscoelastic data with automated gel point location and its potential application in the investigation of therapeutically modified blood coagulation
  19. Modeling confinement in polymer nanocomposites from linear viscoelasticity data
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  21. On exact solutions of the flow equations for Bingham visco-plastic fluids through an eccentric annular cross-section
  22. A computational extensional rheology study of two biofluid systems
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  25. Generation of inkjet droplet of non-Newtonian fluid
  26. Scaling and mesostructure of Carbopol dispersions
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