A review on viscocapillary models of pre-metered coating flows

Suk Il Youn; Su Yeon Kim; Dong Myeong Shin; Joo Sung Lee; Hyun Wook Jung; Jae Chun Hyun

Korea-Australia Rheology Journal, Vol.18, No.4, 209-215, December, 2006

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A review on viscocapillary models of pre-metered coating flows

Suk Il Youn, Su Yeon Kim, Dong Myeong Shin, Joo Sung Lee¹, Hyun Wook Jung^†, and Jae Chun Hyun

Department of Chemical and Biological Engineering, Applied Rheology Center, Korea Univesity, Seoul 136-713, Korea
¹Department of Chemical Engineering, University of California at Berkeley, Berkeley, CA 94720, USA

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Recent research results on viscocapillary models of various pre-metered coating flows such as curtain, slide, and slot coatings have been reviewed in this paper. Such one-dimensional models have been simplified from two-dimensional Navier-Stokes equations for viscous coating flows with free surfaces, using integral momentum balances and lubrication approximation. It has been found that these viscocapillary models is capable of predicting flow dynamics in various coating systems, providing the good agreement with results by 2-D models.

Keywords:Curtain coating;slide coating;slot coating;viscocapillary model;integral momentum balance

[References]

Brown DR, J. Fluid Mech., 10, 297 (1961)
Carvalho MS, Kheshgi HS, AIChE J., 46(10), 1907 (2000)
Christodoulou KN, Computational Physics of Slide Coating Flow, PhD Thesis, University of Minnesota (1990)
Cohen ED, Gutoff EB, Modern Coating and Drying Technology, VCH Publishers, New York (1992)
Finnicum DS, Weinstein SJ, Ruschak KJ, J. Fluid Mech., 255, 647 (1993)
Gates IA, Slot Coating Flows: Feasibility, Quality. PhD Thesis, University of Minnesota (1990)
Gutoff EB, Cohen ED, Coating and Drying Defects, John Wiley & Sons, New York (1995)
Higgins BG, Scriven LE, Chem. Eng. Sci., 35, 673 (1980)
Jung HW, Scriven LE, Simplified modeling of curtain coating, AIChE National Meeting, Reno, Nevada, USA (2001)
Jung HW, Lee JS, Hyun JC, Kim SJ, Scriven² LE, Korea-Aust. Rheol. J., 16(4), 227 (2004)
Kim SY, Park WS, Jung HW, Park MS, Shin DH, Dynamics and operability windows of slot coating process, The 6th European Coating Symposium, Bradford, UK (2005)
Kistler SF, The Fluid Mechanics of Curtain Coating and Related Viscous Free Surface Flows with Contact Lines, PhD Thesis, University of Minnesota (1983)
Kistler SF, Schweizer PM, Liquid Film Coating, Chapman & Hall, London (1997)
Middleman S, Fundamentals of Polymer Processing, McGraw-Hill, New York (1977)
Nagashima K, Industrial Coating Research, 5, 81 (2004)
Ruschak KJ, Chem. Eng. Sci., 31, 1057 (1976)
Sartor L, Slot Coating: Fluid Mechanics and Die Design, PhD Thesis, University of Minnesota (1990)
Weinstein SJ, Clarke A, Simister EA, Phys. Fluids, 9, 3625 (1997)
Youn SI, Shin DM, Lee JS, Jung HW, Hyun JC, Stability and sensitivity of curtain coating process using viscocapillary model, In preparation (2007)

[Referenced By]

[Related Articles]

[1] Brown DR, J. Fluid Mech., 10, 297 (1961)

[2] Carvalho MS, Kheshgi HS, AIChE J., 46(10), 1907 (2000)

[3] Christodoulou KN, Computational Physics of Slide Coating Flow, PhD Thesis, University of Minnesota (1990)

[4] Cohen ED, Gutoff EB, Modern Coating and Drying Technology, VCH Publishers, New York (1992)

[5] Finnicum DS, Weinstein SJ, Ruschak KJ, J. Fluid Mech., 255, 647 (1993)

[6] Gates IA, Slot Coating Flows: Feasibility, Quality. PhD Thesis, University of Minnesota (1990)

[7] Gutoff EB, Cohen ED, Coating and Drying Defects, John Wiley & Sons, New York (1995)

[8] Higgins BG, Scriven LE, Chem. Eng. Sci., 35, 673 (1980)

[9] Jung HW, Scriven LE, Simplified modeling of curtain coating, AIChE National Meeting, Reno, Nevada, USA (2001)

[10] Jung HW, Lee JS, Hyun JC, Kim SJ, Scriven² LE, Korea-Aust. Rheol. J., 16(4), 227 (2004)

[11] Kim SY, Park WS, Jung HW, Park MS, Shin DH, Dynamics and operability windows of slot coating process, The 6th European Coating Symposium, Bradford, UK (2005)

[12] Kistler SF, The Fluid Mechanics of Curtain Coating and Related Viscous Free Surface Flows with Contact Lines, PhD Thesis, University of Minnesota (1983)

[13] Kistler SF, Schweizer PM, Liquid Film Coating, Chapman & Hall, London (1997)

[14] Middleman S, Fundamentals of Polymer Processing, McGraw-Hill, New York (1977)

[15] Nagashima K, Industrial Coating Research, 5, 81 (2004)

[16] Ruschak KJ, Chem. Eng. Sci., 31, 1057 (1976)

[17] Sartor L, Slot Coating: Fluid Mechanics and Die Design, PhD Thesis, University of Minnesota (1990)

[18] Weinstein SJ, Clarke A, Simister EA, Phys. Fluids, 9, 3625 (1997)

[19] Youn SI, Shin DM, Lee JS, Jung HW, Hyun JC, Stability and sensitivity of curtain coating process using viscocapillary model, In preparation (2007)