Roll-over-web coating analysis of micropolar-Casson fluid: a theoretical investigation
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Zaheer Abbas
Abstract
The theoretical model of micropolar-Casson fluid is studied in roll-coating over a moving substrate based on the lubrication theory. Closed-form solutions for the velocity, pressure gradient, and microrotation are attained, while a numerical technique employed to compute interesting engineering variables such as pressure, roll-separating force, separating point, and power input. The influence of involved parameters on the physical and engineering quantities are displayed via graphs and table. The coupling number (N) and viscoplastic parameter (β) provide the controlling mechanism for the exit sheet thickness, separating force, and power input. Also, the pressure gradient and pressure profile in the nip region enhances for large values of coupling number (N) whereas the viscoplastic parameter (β) gives the opposite behavior.
Acknowledgments
The constructive criticism of anonymous reviewers is greatly appreciated.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Conflict of interest statement: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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© 2021 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Material properties
- Research and application progress of lignin-based composite membrane
- Effect of new metal–organic framework (zeolitic imidazolate framework [ZIF-12]) in mixed matrix membranes on structure, morphology, and gas separation properties
- Preparation and assembly
- Ultraviolet blocking and antioxidant polyvinyl alcohol films incorporated with baicalin extraction from Scutellaria baicalensis Georgi
- Investigation on the effect of supported synergistic catalyst with intumescent flame retardant in polypropylene
- Roll-over-web coating analysis of micropolar-Casson fluid: a theoretical investigation
- Engineering and processing
- Applicability of different powder and polymer recipes in a new design powder injection molding system
- Analysis of the skin wrinkling in out-of-plane joints of CFRP hat-shaped structure
- Development of program-driven plug-in for conical counter-rotating twin screw based on SolidWorks
- Effects of gas-assisted extrusion on slip in the cable coating process
Artikel in diesem Heft
- Frontmatter
- Material properties
- Research and application progress of lignin-based composite membrane
- Effect of new metal–organic framework (zeolitic imidazolate framework [ZIF-12]) in mixed matrix membranes on structure, morphology, and gas separation properties
- Preparation and assembly
- Ultraviolet blocking and antioxidant polyvinyl alcohol films incorporated with baicalin extraction from Scutellaria baicalensis Georgi
- Investigation on the effect of supported synergistic catalyst with intumescent flame retardant in polypropylene
- Roll-over-web coating analysis of micropolar-Casson fluid: a theoretical investigation
- Engineering and processing
- Applicability of different powder and polymer recipes in a new design powder injection molding system
- Analysis of the skin wrinkling in out-of-plane joints of CFRP hat-shaped structure
- Development of program-driven plug-in for conical counter-rotating twin screw based on SolidWorks
- Effects of gas-assisted extrusion on slip in the cable coating process
