Simple indicator of draw resonance instability in melt spinning processes

AIChE Journal ◽  
2005 ◽  
Vol 51 (10) ◽  
pp. 2869-2874 ◽  
Author(s):  
Joo Sung Lee ◽  
Hyun Wook Jung ◽  
Jae Chun Hyun ◽  
L. E. Scriven
Keyword(s):  
Melt Spinning ◽  
Draw Resonance ◽  
Simple Indicator

Effect of fluid viscoelasticity on the draw resonance dynamics of melt spinning

2001 ◽  
Vol 99 (2-3) ◽  
pp. 159-166 ◽  
Author(s):  
Joo Sung Lee ◽  
Hyun Wook Jung ◽  
Sung Hyun Kim ◽  
Jae Chun Hyun
Keyword(s):  
Melt Spinning ◽  
Draw Resonance

Finite-amplitude stability and draw resonance in isothermal melt spinning

1975 ◽  
Vol 30 (9) ◽  
pp. 1129-1134 ◽  
Author(s):  
Robert J. Fisher ◽  
Morton M. Denn
Keyword(s):  
Melt Spinning ◽  
Finite Amplitude ◽  
Draw Resonance

Onset of draw resonance during isothermal melt spinning: A comparison between measurements and predictions

AIChE Journal ◽  
1976 ◽  
Vol 22 (3) ◽  
pp. 441-448 ◽  
Author(s):  
C. B. Weinberger ◽  
G. F. Cruz-saenz ◽  
G. J. Donnelly
Keyword(s):  
Melt Spinning ◽  
Draw Resonance

A theory of isothermal melt spinning and draw resonance

AIChE Journal ◽  
1976 ◽  
Vol 22 (2) ◽  
pp. 236-246 ◽  
Author(s):  
Robert J. Fisher ◽  
Morton M. Denn
Keyword(s):  
Melt Spinning ◽  
Draw Resonance

scholarly journals Effect of Material Parameter of Viscoelastic Giesekus Fluids on Extensional Properties in Spinline and Draw Resonance Instability in Isothermal Melt Spinning Process

Polymers ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 139
Author(s):  
Geunyeop Park ◽  
Jangho Yun ◽  
Changhoon Lee ◽  
Hyun Wook Jung
Keyword(s):  
Melt Spinning ◽  
Material Parameter ◽  
Deborah Number ◽  
Process Time ◽  
Draw Resonance ◽  
Transit Times ◽  
Kinematic Waves ◽  
Spinning Process ◽  
The Stability ◽  
In Transit

The draw resonance instability of viscoelastic Giesekus fluids was studied by correlating the spinline extensional features and transit times of several kinematic waves in an isothermal melt spinning process. The critical drawdown ratios were critically dependent on the Deborah number (De, the ratio of material relaxation time to process time) and a single material parameter (αG) of the Giesekus fluid. In the intermediate range of αG, the stability status changed distinctively with increasing De, i.e., the spinning system was initially stabilized and subsequently destabilized, as De increases. In this αG regime, the level of velocity and extensional-thickening rheological property in the spinline became gradually enhanced at low De and weakened at high De. The draw resonance onsets for different values of αG were determined precisely using a simple indicator composed of several kinematic waves traveling the entire spinline and period of oscillation. The change in transit times of kinematic waves for varying De adequately reflected the effect of αG on the change in stability.

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