Browsing by Author "Damianou, Y."
Now showing items 1-7 of 7
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Conference Object
Cessation flows of bingham plastics with slip at the wall
Damianou, Y.; Philippou, Maria; Kaoullas, G.; Georgiou, Georgios C. (National Technical University of Athens, 2013)We use finite elements in space and a fully implicit scheme in time in order to solve the cessation of axisymmetric Poiseuille flow of a Bingham plastic under the assumption that slip occurs along the wall. The Papanastasiou ...
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Article
Cessation of Newtonian circular and plane Couette flows with wall slip and non-zero slip yield stress
Philippou, Maria; Damianou, Y.; Miscouridou, X.; Georgiou, Georgios C. (2017)We solve analytically the cessation flows of a Newtonian fluid in circular and plane Couette geometries assuming that wall slip occurs provided that the wall shear stress exceeds a critical threshold, the slip yield stress. ...
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Cessation of viscoplastic Poiseuille flow in a square duct with wall slip
Damianou, Y.; Kaoullas, G.; Georgiou, Georgios C. (2015)We solve numerically the cessation of the pressure-driven Poiseuille flow of a Bingham plastic under the assumption that slip occurs along the wall following a generalized Navier-slip law involving a non-zero slip yield ...
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Article
Cessation of viscoplastic Poiseuille flow with wall slip
Damianou, Y.; Philippou, Maria; Kaoullas, G.; Georgiou, Georgios C. (2014)We solve numerically the cessation of axisymmetric Poiseuille flow of a Herschel-Bulkley fluid under the assumption that slip occurs along the wall. The Papanastasiou regularization of the constitutive equation is employed. ...
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Combined effects of compressibility and slip in flows of a Herschel-Bulkley fluid
Damianou, Y.; Georgiou, Georgios C.; Moulitsas, I. (2013)In this work, the combined effects of compressibility and slip in Poiseuille flows of Herschel-Bulkley fluids are investigated. The density is assumed to obey a linear equation of state, and wall slip is assumed to follow ...
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Conference Object
Stopping times in cessation flows of Bingham plastics with slip at the wall
Philippou, Maria; Damianou, Y.; Kaoullas, G.; Georgiou, Georgios C. (2012)We solve numerically the cessation of axisymmetric Poiseuille flow of a Bingham plastic assuming that slip occurs along the wall. A power-law expression is used to relate the wall shear stress to the slip velocity. The ...
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Article
Viscoplastic Poiseuille flow in a rectangular duct with wall slip
Damianou, Y.; Georgiou, Georgios C. (2014)We solve numerically the Poiseuille flow of a Herschel-Bulkley fluid in a duct of rectangular cross section under the assumption that slip occurs along the wall following a slip law involving a non-zero slip yield stress. ...