Existence of optimal cooling conditions in the film blowing process

Joo Sung Lee, Dong Myeong Shin, Hyun Seob Song, Hyun Wook Jung, Jae Chun Hyun

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The existence of optimal cooling conditions with respect to process stability has been experimentally found in film blowing, in a sharp contrast to other extensional deformation processes such as fiber spinning and film casting where maximum, not optimal, cooling always unequivocally enhances process stability. The same simulation model of film blowing of Hyun et al. [J.C. Hyun, H. Kim, J.S. Lee, H.-S. Song, H.W. Jung, Transient solutions of the dynamics in film blowing processes, J. Non-Newtonian Fluid Mech., 121 (2004) 157-162] proven quite accurate in portraying the transient dynamic behavior of the film blowing as compared with experimental data, has been used in this study to carry out a linear stability analysis, which then clearly confirms the experimentally found optimal cooling conditions. These optimal cooling conditions in film blowing stemming from the multiplicity of steady states of the process thus make the strategies for stabilization and optimization of the process quite a challenging task in both industry and academia because of their common relevance to the important process productivity issue.

Original languageEnglish
Pages (from-to)24-30
Number of pages7
JournalJournal of Non-Newtonian Fluid Mechanics
Volume137
Issue number1-3
DOIs
Publication statusPublished - 2006 Aug 30

Fingerprint

blowing
Blow molding
Cooling
cooling
Linear stability analysis
Transient Solution
Transient Dynamics
productivity
Transient Behavior
Non-Newtonian Fluid
Linear Stability Analysis
metal spinning
Casting
Dynamic Behavior
Productivity
Stabilization
stabilization
industries
Multiplicity
Simulation Model

Keywords

  • Draw resonance
  • Film blowing
  • Linear stability analysis
  • Optimal cooling
  • Stability
  • Transient solutions

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

Cite this

Existence of optimal cooling conditions in the film blowing process. / Lee, Joo Sung; Shin, Dong Myeong; Song, Hyun Seob; Jung, Hyun Wook; Hyun, Jae Chun.

In: Journal of Non-Newtonian Fluid Mechanics, Vol. 137, No. 1-3, 30.08.2006, p. 24-30.

Research output: Contribution to journalArticle

Lee, Joo Sung ; Shin, Dong Myeong ; Song, Hyun Seob ; Jung, Hyun Wook ; Hyun, Jae Chun. / Existence of optimal cooling conditions in the film blowing process. In: Journal of Non-Newtonian Fluid Mechanics. 2006 ; Vol. 137, No. 1-3. pp. 24-30.
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