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Abstrakt
The non-isothermal couple stress fluid inside a reverse roll coating geometry is considered. The slip condition is considered at the surfaces of the rolls. To develop the flow equations, the mathematical modelling is performed using conservation of momentum, mass, and energy. The LAT (lubrication approximation theory) is employed to simplify the equations. The closed form solution for velocity, temperature, and pressure gradient is obtained. While the pressure and flow rate are obtained numerically. The impact of involved parameters on important physical quantities such as temperature, pressure, and pressure gradient are elaborated through graphs and in tabular form. The pressure and pressure gradient decreases for variation of the couple stress parameter and velocity ratio parameter K. While the variation of the slip parameter increases the pressure and pressure gradient inside the flow geometry. Additionally, flow rate decreases for the variation of the slip parameter as fluid starts moving rapidly along the roller surface. The most important physical quantity which is responsible for maintaining the quality of the coating and thickness is flow rate. For variation of both the couple stress parameter and the slip parameter, the flow rate decreases compared to the Newtonian case, consequently the coating thickness decreases for the variation of the discussed parameter
Cytowania
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1 7
CrossRef
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0
Web of Science
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1 7
Scopus
Autorzy (5)
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Hasan Shahzad
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Xinhua Wang
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Zahir Shah
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Mohammed Ahmed Alsheri
Cytuj jako
Pełna treść
- Wersja publikacji
- Accepted albo Published Version
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.3390/coatings11101249
- Licencja
-
otwiera się w nowej karcie
Słowa kluczowe
Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuły w czasopismach
- Opublikowano w:
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Coatings
nr 11,
ISSN: 2079-6412 - Język:
- angielski
- Rok wydania:
- 2021
- Opis bibliograficzny:
- Shahzad H., Wang X., Hafeez M. B., Shah Z., Alsheri M. A.: Study of Slip Effects in Reverse Roll Coating Process Using Non-Isothermal Couple Stress Fluid// Coatings -Vol. 11,iss. 10 (2021), s.1249-
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.3390/coatings11101249
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 127 razy
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