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Air Ring Effect on Blown Film Dynamics
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B. Cao
Published/Copyright:
May 27, 2013
Abstract
The air ring has an effect on blown film dynamics. By using a momentum macrobalance, an analytical solution for the pressure on the outer surface of the bubble is obtained which is in fairly good agreement with our aerodynamic experimental data. Since the pressure is related to the hoop stress, a more complete prediction of the bubble shape is attained by taking the air ring effect into account.
Published Online: 2013-05-27
Published in Print: 1989-05-01
© 1989, Carl Hanser Verlag, Munich
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Articles in the same Issue
- Contents
- Contents
- Review Paper
- New Developments in Fiber- and Filmextrusion
- Original Contributions
- Use of Chilled Die Lips to Improve Production Rates in Extrusion of PE
- Characterization of the Sharkskin Defect and its Development with the Flow Conditions**
- Modifying Threadline Dynamics in the High-speed Melt Spinning Process
- Computer Simulation of Multi filament Air Jet Melt Spinning
- Structure Development in the Melt Spinning and Drawing of Poly p Phenylene Sulfide Fibers
- Cast Film Extrusion of Polypropylene Films
- Air Ring Effect on Blown Film Dynamics
- Computer Simulation of Melt Viscoelasticity Functions for Binary Polyblends
