Journal
JOURNAL OF PLASTIC FILM & SHEETING
Volume 34, Issue 3, Pages 232-255Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/8756087917707558
Keywords
Non-Newtonian material; roll coating; differential equations; lubrication approximation theory; numerical procedure
Categories
Ask authors/readers for more resources
In this study, the lubrication approximation theory is used to provide numerical results in roll coating over a moving flat porous web. The rate of injection at the roll surface is assumed equal to the rate of suction on the web. The second-grade fluid is used, which reduces with appropriate modifications to the Newtonian fluid model. Results are obtained in such quantities as coating thickness, split location, pressure distribution, stresses, forces, the power input to the roll, and adiabatic temperature rise between the coating roll and the coated web. Some of these results are shown graphically. It is found that material parameters and Reynolds number are the parameters to control flow rate, coating thickness separation points, separation force, power input, and pressure.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available