journal article·2020-07-17Open access

Theoretical Analysis of Roll-Over-Web Surface Thin Layer Coating

Tareq Manzoor, Muhammad Zafar, Shaukat Iqbal, Kashif Nazar, Muddassir Ali, Mahmood Saleem, Sanaullah Manzoor, Woo Young Kim

Coatings· Volume 10· Issue 7

Abstract

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.
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Research context

OpenAlex topics: Tribology and Lubrication Engineering · Aerodynamics and Fluid Dynamics Research · Adhesion, Friction, and Surface Interactions

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Energy Research Centre, COMSATS University Islamabad, Lahore Campus 54000, Pakistan

Institute of Energy and Environmental Engineering, University of the Punjab, Lahore 54590, Pakistan

School of Systems and Technology, University of Management and Technology, Lahore 54000, Pakistan

Department of Mathematics, COMSATS University Islamabad, Lahore 54000, Pakistan

Department of Energy Engineering, Faculty of Mechanical and Aeronautical Engineering, University of Engineering and Technology, Taxila 47050, Pakistan

Department of Computer Science, Information Technology University, Lahore 54000, Pakistan

Department of Electronic Engineering, Faculty of Applied Energy System, Jeju National University, Jeju Special Self-Governing Province, Jeju-si 63243, Korea

Funding

National Research Foundation of Korea

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