Theoretical Analysis of Roll-Over-Web Surface Thin Layer Coating
| Autor: | Muddassir Ali, Kashif Nazar, Sanaullah Manzoor, Tareq Manzoor, Muhammad Zafar, Mahmood Saleem, Shaukat Iqbal, Woo Young Kim |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Surface (mathematics)
Materials science Differential equation 02 engineering and technology engineering.material roll-over-web coating Physics::Fluid Dynamics 020401 chemical engineering Coating Materials Chemistry 0204 chemical engineering Pressure gradient couple stress fluid Approximation theory Homotopy Surfaces and Interfaces Mechanics 021001 nanoscience & nanotechnology Surfaces Coatings and Films lcsh:TA1-2040 lubrication approximation theory engineering Lubrication 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) Layer (electronics) optimal homotopy asymptotic method (OHAM) |
| Zdroj: | Coatings Volume 10 Issue 7 Coatings, Vol 10, Iss 691, p 691 (2020) |
| ISSN: | 2079-6412 |
| DOI: | 10.3390/coatings10070691 |
| Popis: | This study presents the theoretical investigation of a roll-over thin layer formation under the lubrication approximation theory. The set of differential equations derived by lubrication approximation is solved by the optimal homotopy asymptotic method (OHAM) to obtain precise expressions for pressure and velocity gradients. Critical quantities such as velocity, pressure gradient, and coating layer depth are numerically estimated. The impact of parameters affecting the coating and layer formation is revealed in detail. Results indicate that the transport properties of the higher-grade fluid play an essential role in regulating velocity, pressure, and the final coated region. Moreover, couple stress effects on the properties of fluid particles to be coated on roller-surface have also been studied. |
| Databáze: | OpenAIRE |
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