A numerical analysis of calendering of Oldroyd 4-constant fluid
-
Hafiz Muhammad Atif
,
Nasir Ali
Abstract
We investigate the effects of non-Newtonian parameters on the exiting sheet thickness in the calendering of Oldroyd 4-constant fluid. The governing equations are first converted into dimensionless form and then simplified under lubrication approximation theory. A complete numerical approach is developed based on Matlab built-in routine “bvp4c” in order to obtain stream function and pressure gradient. The pressure is computed using Runge-Kutta method. The effects of involved material parameters on various quantities of interest are highlighted through graphs. The results indicate that Oldroyd 4-constant model predicts lower pressure in the nip region than that of the Newtonian model. The force and power for Oldroyd 4-constant model are also lower than their counterparts for Newtonian model. Moreover, the leave-off distance is nearly independent of the material parameters of the Oldroyd 4-constant model for larger value of the entering sheet thickness.
Conflict of interest statement: The authors have no conflict of interests regarding this manuscript.
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Articles in the same Issue
- Frontmatter
- Material properties
- Steady shear and dynamic strain thickening of halloysite nanotubes and fumed silica shear thickening composite
- Diffusivity of solvents in semi-crystalline polyethylene using the Vrentas-Duda free-volume theory
- Toughening effect and mechanism of polyamide 12 and modified montmorillonite in polybenzoxazine resin
- The effects of cross-linked/uncross-linked electrospun fibrinogen/polycaprolactone nanofibers on the proliferation of normal human epidermal keratinocytes
- Frequency independent AC electrical conductivity and dielectric properties of polyaniline-based conductive thermosetting composite
- Preparation and assembly
- Study on the preparation and drug release property of soybean selenoprotein/carboxymethyl chitosan composite hydrogel
- Engineering and processing
- Interaction of nanofillers in injection-molded graphene/carbon nanotube reinforced PA66 hybrid nanocomposites
- Prediction of the yellowing of styrene-stat-acrylonitrile and acrylonitrile-butadiene-styrene during processing in an internal mixer
- Milling process optimization for the best surface coat adhesion of the rigid polyurethane foam
- A numerical analysis of calendering of Oldroyd 4-constant fluid
