Transient responses of two-dimensional viscoelastic film casting processes to sinusoidal disturbances
- Authors
- Choi, Seung Won; Shin, Dong Myeong; Lee, Joo Sung; Kim, Ju Min; Jung, Hyun Wook; Hyun, Jae Chun
- Issue Date
- 1월-2009
- Publisher
- KOREAN INSTITUTE CHEMICAL ENGINEERS
- Keywords
- Sensitivity; Film Casting; Frequency Response; Transient Simulation; Sinusoidal Disturbance
- Citation
- KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.26, no.1, pp.26 - 31
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- KOREAN JOURNAL OF CHEMICAL ENGINEERING
- Volume
- 26
- Number
- 1
- Start Page
- 26
- End Page
- 31
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/120869
- DOI
- 10.1007/s11814-009-0005-1
- ISSN
- 0256-1115
- Abstract
- The sensitivity of two-dimensional isothennal film casting processes to ongoing sinusoidal disturbances has been investigated by using the frequency response method with transient simulation techniques. Amplitude ratios of state variables such as cross-sectional area, film width and film thickness at the take-up position with respect to a sinusoidal disturbance show resonant peaks along the frequency domain. Effects of operating conditions, such as draw-down ratio and aspect ratio, on the process sensitivity have been examined. Increasing draw-down ratio and decreasing aspect ratio make the system more sensitive to disturbances. Also, the dichotomous behavior in the sensitivity analysis using viscoelastic Phan-Thien and Tanner fluids has been elucidated. This frequency response method can be a useful tool to optimally design process systems for better processability and product quality.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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