scholarly journals On stability of steady nonlinear rotating viscoelastic jets

2020 ◽  
Vol 2 ◽  
pp. 100010
Author(s):  
Daniel N. Riahi
Keyword(s):  
Viscoelastic Jets

Dynamics of viscoelastic jets of polymeric liquid extrudate

1999 ◽  
Vol 81 (1-2) ◽  
pp. 105-132 ◽  
Author(s):  
Yuanchang Liang ◽  
Alparslan Oztekin ◽  
Sudhakar Neti
Keyword(s):  
Polymeric Liquid ◽  
Viscoelastic Jets

scholarly journals Nonlinear rotating viscoelastic jets during forcespinning process

2018 ◽  
Vol 474 (2220) ◽  
pp. 20180346 ◽  
Author(s):  
Daniel N. Riahi
Keyword(s):  
Surface Tension ◽  
Strain Rate ◽  
Tensile Force ◽  
Arc Length ◽  
Rotation Surface ◽  
Speed Increase ◽  
Nonlinear Viscoelastic ◽  
Steady Solutions ◽  
Effects Of Rotation ◽  
Viscoelastic Jets

In the usual forcespinning (FS) process, a fluid jet is forced through an orifice of a rotating spinneret leading to the formation of a jet with curved centreline. In this paper, we investigate the properties of nonlinear viscoelastic jets during the FS process. We apply scaling and perturbation techniques to determine the modelling system for the viscoelastic jets, subjected to the Giesekus constitutive equations for the stress tensor. We calculate numerically the expressions for the nonlinear steady solutions for the jet quantities such as radius, speed, stretching rate, strain rate, tensile force and trajectory. We determine these quantities for different values of the parameters such as those representing the effects due to rotation, surface tension, viscosity, jet drag and viscoelasticity. We find, in particular, that the fibre jet radius decreases and the tensile force increases with the jet arc length as well as with increasing the effects of rotation and viscoelasticity. Both viscosity and surface tension indicate stabilizing effect on the viscoelastic jet. In addition, strain rate, stretching rate and the jet speed increase with the arc length, viscoelasticity and rotation rate.

Axisymmetric instabilities of electrically driven viscoelastic jets

2008 ◽  
Vol 153 (2-3) ◽  
pp. 130-148 ◽  
Author(s):  
Colman P. Carroll ◽  
Yong Lak Joo
Keyword(s):  
Viscoelastic Jets

scholarly journals Poster: Elasto-inertial Turbulence in Dilute Viscoelastic Jets: Finite Extensibility of Polymer Chains Plays a Role

2021 ◽  
Author(s):  
Sami Yamanidouzisorkhabi ◽  
Yashasvi Raj ◽  
Gareth H. McKinley ◽  
Irmgard Bischofberger
Keyword(s):  
Polymer Chains ◽  
Finite Extensibility ◽  
Viscoelastic Jets

Direct numerical simulations of turbulent viscoelastic jets

2020 ◽  
Vol 899 ◽  
Author(s):  
Mateus C. Guimarães ◽  
Nuno Pimentel ◽  
Fernando T. Pinho ◽  
Carlos B. da Silva
Keyword(s):  
Numerical Simulations ◽  
Direct Numerical Simulations ◽  
Image Position ◽  
Viscoelastic Jets

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