Browsing by Author "Ioannou, Iasonas"
Now showing items 15 of 5

Article
Annular pressuredriven flow of a Bingham plastic with pressuredependent rheological parameters
Ioannou, Iasonas; Georgiou, Georgios C. (2019)The pressure and temperature dependence of the yield stress is well established in oil drilling. In the present work, the steady, annular pressuredriven flow of a Bingham plastic is considered under the assumption that ...

Article
Axisymmetric Poiseuille flow of a Bingham plastic with rheological parameters varying linearly with pressure
Ioannou, Iasonas; Georgiou, Georgios C. (2018)We consider the steady axisymmetric Poiseuille flow of a Bingham plastic under the assumption that both the plastic viscosity and the yield stress vary linearly with pressure. An analytical solution is derived for the case ...

Article
Lubrication solution of the axisymmetric Poiseuille flow of a Bingham fluid with pressuredependent rheological parameters
Housiadas, Kostas D.; Ioannou, Iasonas; Georgiou, Georgios C. (2018)The lubrication flow of a Bingham plastic in long tubes is modeled using the approach proposed by Fusi and Farina (Appl. Math. Comp. 320, 1–15 (2018)). Both the plastic viscosity and the yield stress are assumed to vary ...

Article
Lubrication solution of the flow of a HerschelBulkley fluid with pressuredependent rheological parameters in an asymmetric channel
Panaseti, Pandelitsa; Georgiou, Georgios C.; Ioannou, Iasonas (2019)The lubrication flow of a HerschelBulkley fluid in a long asymmetric channel, the walls of which are described by two arbitrary functions h1(x) and h2(x) such that h1(x) < h2(x) and h1(x) + h2(x) are linear, is solved ...

Conference Object
Numerical and asymptotic solutions of axisymmetric Poiseuille flows of yield stress fluids with pressuredependent rheological parameters
Housiadas, Kostas; Ioannou, Iasonas; Panaseti, Pandelitsa; Georgiou, Georgios C. (GRACM, 2018)The lubrication flow of a Bingham plastic in long tubes of varying radius is modeled using the approach proposed by Fusi and Farina (Appl. Math. Comp. 320, 115 (2018)). Both the plastic viscosity and the yield stress are ...